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Construction Materials - Science topic

Explore the latest questions and answers in Construction Materials, and find Construction Materials experts.
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Please share your knowledge and experience. How to write a review paper related to cement-based materials/concrete technology? What characteristics review paper should have? What should be the purpose of writing a review paper?
Thank you
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Often, a useful review paper can be produced efficiently if the following two conditions are met:
1) The paper does not already exist in the literature, and
2) you are starting a new research area and performing an extensive literature search so that you can get up to speed on the topic.
Defining of the scope of the review paper is still often a challenge, too broad and you won't be able to efficiently and effectively cover the topic(s) and too narrow and it will be of limited interest to the research community at large.
In addition to review papers, online bibliographies and annotated bibliographies for a research area can also be of interest and extreme value to others working in your field.
Happy review paper writing,
Dale
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Currently, the acceptance rate of MDPI Materials is about 65%. Normally, this rate is 20-30% for other journals. Is MDPI Materials publishing so many papers for money and compromising on the quality of work?
Thank you
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In my opinion, based on the quality of articles I have accessed in my area, I can say MDPI materials are of good quality.
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Dear Civil Engineers Researchers,
I am assistant professor in a growing university and I am looking for research partners in the field of construction and buildings materials.
I have a good theoratical background in construction materials and I teach this topic to undergraduate students. I would like to find partners who can help me advance in this domain. We can together publish papers in Q2 journals like Buildings (MDPI), Alexandria journal of engineering Q1, and other good journals.I can take care of publication fees .
Please message me in private if you think we can do something together.
Regards
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Hi Y.J. I belongs to a construction firm and working for construction of B.B & R since 2018. What kind of construction material research you are intending?
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I need to know how to modify an agg process, based in an u-so process in GaBi. For example, I modified some flows of the cement BR (u-so) in ecoinvent 3.6 creating a copy, but I need to modify this date in agg process for I can calculate the environmental impacts, how can I vincule the modifications from u-so process with the agg process?
Best Regards,
Lucas
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Dear, Calculating the environmental impact or circularity or carbon footprint is based on 1001 assumptions. What is the accurancy of these numbers??? fe impact is related to the energy source (nuclear power, renewables, ...)
It is impossible to express the complexity in one number. Environmental impact is also always a compromise with other needs of the product. The way we prefer is the evalation with the lifecycle based ecodesign rules of thumb gathered in checklists.
Good luck
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The geotechnical investiments into road construction materials for flexible pavements?
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you can look at QA guidelines.
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The survey is anonymous, and takes about 10 minutes to complete. The accent is on the usage of building materials and products, before and during the pandemic. Besides, an interesting part is about the readiness to implement new ecological materials in your homes. The survey does not require much of specific knowledge.
Please, follow the safe link https://surveyhero.com/c/euyap4fn
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done
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The survey is anonymous, and takes about 10 minutes to complete. The accent is on the usage of building materials and products, before and during the pandemic. Besides, an interesting part is about the readiness to implement new ecological materials in your homes. The survey does not require much of specific knowledge. Please, follow the safe link https://surveyhero.com/c/euyap4fn
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Dr. Milica Vasić,
You're welcome.
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The traditional housing typologies make use of locally available construction materials such as wood, stone, and mud etc. for the building construction. Past earthquakes showed high seismic vulnerability to these existing masonry building typologies.
What is the different strengthening or safety measures that can be taken to enhance their earthquake resistance?
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Thanks P. Pravin Kumar Venkat Rao for your interest and nice discussion.
Big openings can be reduced as per the guideline. Regarding friction isolator one can try foundation isolation (one can try for insertion of distributed isolator stage wise below the base raft).
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The applications of nanotechnology, commonly incorporate industrial, medicinal, health and energy uses. These include more durable construction materials, therapeutic drug delivery, and higher density hydrogen fuel cells that are environmentally friendly. For human health, nanotechnology has tremendous interest in food detection and will be receiving more and more attention shortly. The food industry is eager to benefit from its revolutionary discovery as much as possible.
Some interesting nanotechnological applications like nanosteel, low friction aggregate components, switchable materials, glare free wiper free glasses, environmental multisensors, situation adapted driving mode are in the room of research which will become realistic in very future.
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There are a lot of applications of nanotechnology as in science as in industry.
Also every year appears new fields of nanotechnology
As for me, he mos interesting directions are:
-nanobiotechnology,
-bionanotechnology,
-nanoagrotechnology
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How can the mechanical properties of wood be improved? Are nanoparticles possible to improve this, and how can they be added?
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It is useful to go through the very recent special review in [1] by Latifah Jasmani and et al., titled" Application of Nanotechnology in Wood-Based Products Industry: A Review "since it presents the newest research outcome in the field of the modification of wood based products through latest different routes. Please go through it as I did and you can find it helpful.
Best regards
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Hello dear researchers, hope you are doing well. I was wondering how much the average cost of building a 100m2 commercial polyethylene/glass greenhouse, and of course its payback period time is. I would appreciate if you consider land and construction material costs, fuel price, investment, maintenance, and labor cost and answer them separately if possible. There are plenty of articles and websites providing some information regarding this issue, but I'm actually looking for a reliable source. Could you please help me with this issue?
Best Regards
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Material Flow Analysis (MFA) is often applied at regional and urban level in order to understand and improve flows and stocks of construction materials.
Do you know examples (case studies or conceptual frameworks) of an MFA applied at building level (for instance a single residential or office building) ?
Thank you for your contribution.
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Dear Vaishali, the paper is was mentioning about MFA at building level (with special focus on material flows during the building operation stage) is now published:
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Exfoliated Kaolinite-Clay.
Thanks in advance.
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This is a good question.
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Has anyone in your laboratory equipment a VERSA TESTER? made by SOILTEST.Inc (Evanston Ill. USA)? I am looking for its user manual... Any help is greatly appreciated!!!
See the attached file.
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Yes we have but can not use the apparatus
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Hello everybody, could you help me please to found reference database (or research articles) about thermal and optical properties (absorbance, reflectance, transmittance and thermal conductivity) of theses constructions materials: grey cast iron (4.12C); Teak wood or wood maple (across the grain); Extrude Polystyrene Foam (XPS) and alveolar polycarbonate materials? Thank you in advances. Regards
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Considering their optical and thermal properties / characteristics, building designers should be in a position to arrive at the best environment-friendly combination of such construction items. It is an imperative today.
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The thermal performance of a building, Modeling and simulation of a building with the software comsol, Characterization of the thermomechanical and physical properties of cellular concrete
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I want information about the methods and materials used in ICI (industrial, commercial, institutional) buildings in GTA (Greater Toronto Area). Can I have some reference websites?
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Hi,
I hope this pdf will be useful for your question?
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which one is the best idea exploiting the Chure and mountains for construction materials or conserve it for tourism and ecosystem services?
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Which is better from an economic point of view, to keep it or use it for the purposes of construction materials .. But the environmental aspect of the area remains very important and must be taken into consideration with thanks.
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In 2017 more than 11.4 million tons of solid glass waste was produced.Since the last 3 decades glasses have been used in many construction elements mainly in GFRC. While using the glass, the glasses cant be directly used in the construction process and first it needs to be molded into shapes and size and nature as required. While adding chemicals to the glass or while melting the glass to give different shape and sizes what further effect will it carry? Is it possible to complete eradicate the solid glass waste either by recycling or by using it as a construction material? And also can glasses replace the aggregates or sand?
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You may see the below-given article for your question.
With warm regards.
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What can you say about building disassembly? For you, in you own opinion, is this method of construction in the present time effective and will it be develop through time?
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Many real cases and studies show the real advantage of disassembly construction methods, especially in steel and timber elements, as they have the typical characteristics of a circular process (cradle to cradle). There are several aspects to be evaluated including cost, time, labour, and the actual benefits in terms of reducing environmental impacts, but I believe that with a proper disassembly plan already planned in the design phase, the whole process would be very simple, practical and cost-effective.
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The 3rd ICCEET 2021 targets to bring together researchers, research scholars, and leading academic scientists to share and exchange their research results and experiences on civil and environmental engineering aspects of research, innovation, and design. It will also offer a premier interdisciplinary platform for educators, researchers, and engineering practitioners to present and discuss the most recent trends, concerns, and innovations as well as practical challenges faced and solutions implemented in the fields of building design, transportation construction materials, air population, wastewater management, and water resources research. Faculty of Engineering aims to motivate the academic staff to publish their future research in peer-reviewed (IOP) which is in the Scopus index
For contact and sending the abstracts of and full text for papers
Web site :
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Thanks, Interested
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Dear Researchers,
In Textile Reinforced Concrete is a novel construction material consisting of a cementitious binder and a textile reinforcement. Without using a course aggregate why the topic is named as Textile Reinforced Concrete? and why the topic is not named as  Textile Reinforced Mortar Concrete?
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Dear Ferhat,
your idea about mortar I think isn’t correct.
Worldwide you can find ,easily ,on the market structural repair mortars (R4 class EN 1504) with very high performances (Flexural strength over 10 MPa and Compressive over 70 MPa, E-module more than 20GPa and adhesion bonding strength more than 2 MPa ).
Maybe you are speaking about plasters that are mortars and can be based on lime only, lime and pozzolanic materials, lime - gypsum or lime - Portland cement.
The presence of coarse gravel is typical of concrete while isn’t used in mortars, because even for high thickness repair, are used only sand and coarse sand till very fine.
The choice between concrete and mortars depends on the specific application and depending on size. There are several categories for mortars and concretes too.
Best
Alex Reggiani
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if i want to classify opc, ppc using there hyperspectral data and deeplearning how should i do it.
please tell name of any pretrained network that can help via transfer learining.
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Dear Aman Jaiswal.
Hyperspectral sensors look at specimen utilizing a tremendous segment of the electromagnetic range. Certain items leave interesting 'fingerprints' in the electromagnetic spectrum. Thus, the 'fingerprints' can be used to identify materials such as concrete, cement. Nevertheless, research- work must be carried out, protocols established concerning the application in concrete. Besides, i found the link below given by Matthias very useful.
Thank you
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Insulation materials come from different sources. Each material has advantages and disadvantages that must be considered when selecting insulation for buildings. What would you recommend other than the commonly used materials?
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A very eco - friendly material (especially for industrial floors) is magnesia fibrolite - wood chips or straw bonded with magnesia cement, because magnesia cement is used to make millstones, among other things: https://www.researchgate.net/publication/342212592_Experience_with_the_use_of_magnesia_binder_in_construction_and_manufacturing_of_building_materials
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What are the best methods to compare two or more construction material/product standards from different countries?
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It depends on your product.
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please give any information about the Conference on Building Materials or Sustainable Materials
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The International Conference on Sustainable Materials, Structures and Systems which will be held in London from 18 to 19 November 2021.
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According to many construction standards such as ASTM, a good construction material should have a water absorption value within 20%. However, if we compare with many water absorption values (from 1%-20%) which one is more preferable? Should the materials have higher or lower water absorption value?
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Water absorption is one of the most important hygrothermal material properties. It has to be assessed in order to define the overall technical solution moisture management strategy. Considering brick, mortar, etc., their specific use and function should be careful evaluated to define the optimal water absorption coefficient, which can be different depending on the particula application.
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We are trying to choose between simultaneous DSC/TGA's from Neztsch (Jupiter F5) and Setaram (Labsys). They both offer very similar systems. Seteram does have an advantage in heat capacity where they can use a 3-dimensional cell, but I do not know if that will be relevant to us. If it makes a difference, we will be using it primarily for Gypsum and perhaps other building materials and/or paints and coatings.
Could someone provide an unbiased opinion if they have noticed differences in the instrument sensitivity, software, service, or some other area of Nezstch versus Setaram?
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Dear Beth Schoen.
For my experience Netzsch is the best hight tmperature tool. They has several advantages you may use.
1. Sensor is convenient in routine. Netzsch provides several typs of sensors. so you may choose.
2. Software. Its convenient and powerful. They have Kinetic NEO. I recomend to try it for some cases. It is not applicable for fundamentals but may yeld good predictions for technology.
3.gas system. you realy could work with controled atmosphere. that is useful for study of processes sensetive to O2 (or ather gases). It is impotent Jupiter has good vacum sistem, so atmosphere changes are easy to do.
4. 3d cell (Setaram) is look inconvenient, 'couse of sempling. But if you need high semsetive sensor it is the best. Nevertheless, note that sensor is "consumable". So keep price in mind.
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High performance concrete
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Hello everybody,
I have a question about this subject.
What retarder materials for delay concrete are there? for example gluconate sodium, sugar.
thanks
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I request the professionals in this to please help me in my project which i am doing in my final year. I'd be very grateful even if its just a bunch of research papers or websites that your sharing.
thank you.
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To obtain reliable and valuable answers, you have to specify, what kind of industrial sludge are you talking about. Oil sludge, sludge containing heavy metals, press mud, sugar beet mud, sludge from tannery industries? Some else?
Regards
Vit
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I'm doing bibliographic research about chemical aplications and solutions for sustainable air transport. Following aspects are of interest:
  • jet fuels: synthetic, biofuels, fuel cell, etc.
  • airplane construction materials to reduce its weight
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The only important parameter to guarantee sustainable aviation is the transition to new synthetic green biofuels.
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I need to know the MOC of a reactor where I will heat H3PO4 to 170 degC and add Metal Oxide to make a polyphosphate.
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Thanks Carlos. Do you have any data for what will be the corrosion rate mm/yr. This will help me to design the thickness of the reactor.
Regards
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scientific researches
Master Theses
PhD
Any previous studies benefit me in my research ... Thank you
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Dear Hinde
Please find the attached file which represents the recent article about your request.
Regards
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The results of the concrete experiments can be used to build up a model to determine the power consumption of an equipment and to establish the scale-up method. The Life Cycle Assessment for concrete is an important part of the LCA of buildings. The total life cycle of concrete can be developed in a complex way from the production phase through the usage to the end-of-life stage with the help of information modules of the EPD. For comparative LCAs there is a necessity to analyse, whether there are influences on environmental loads due to scale up. There are effects which should be taken into consideration for such scale-up prognosis in LCA.
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Following.
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i have a master of science degree in the field of construction engineering and management and i went to continue my PHD degree in the field of concrete technology or construction materials so i need some suggestion form other researchers about research idea or title.
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High performance concrete with advanced properties like high density, low density, high water resistance, chemical resistance, weather resistance, fire resistance, radiation resistance, ductility, durability, etc customised as per project requirements
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The trend will guide construction materials
How trends affect building materials in hybrids?
It has a strong impact on consumers' choice when selecting materials?
The use of green materials in close proximity to the wrong environment reduces the negative effects on the earth?
Look forward to everyone's thoughts on this matter!
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Hello,
I guess consuming construction materials is related to reliability and cost effectiveness is very important. Green materials probably are not cost effective. So it is obvious to use more locally available materials other than green materials.
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Hello Everyone,
I would like to know what can be more innovative and interesting research questions from the above mentioned phd topic. I am more interested towards sustainable building materials and construction.
Any suggestion for the research questions and methodolgy for this phd topic to make it more interesting and unique
Looking forward
Best Regards
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Ok it's a better choice to suggest it
Thankfully
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Looking hot for molecular modeling programs that can build materials made up of 3 or more elements into different shapes such as cylindrical, triangular and so on.
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You can use : Plaxis or Geostudio
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I am an Architectural Engineering graduate student with a background in studying Building physics, Building materials, Building Services, and Building Technologies in sum. Remote sensing is not currently one of my strengths but I am shooting for an interdisciplinary topic to try to link the architectural engineering and remote sensing and widen the boundaries of building engineering.
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How about researching Smart Built Environments (SBEs), i.e. trying to understand issues around integration of building information modelling (BIM), CAFM (computer aided facilities management) and BMS (building management systems), in terms of intelligent decision making based on remote sensing data in buildings?
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There is an open access journal (IJCESA) to call for research paper related to the civil engineering.
The journal is related to structural engineering, construction technology, building materials and structures, coastal and harbor engineering, construction management, earthquake engineering, environmental engineering, renovation of building, geotechnical engineering, highway engineering, hydraulic, road and bridge engineering, transportation engineering, tunnel engineering, urban engineering, water resources engineering, urban drainage and etc.
If you are interested, or if you want more information, you can visit our website: https://www.ijcesa.com
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In Poland, there is now a trend in which we all have to duplicate our research and analysis in magazines that have relevant points on the list from our Ministry of Science and Higher Education - unfortunately I can't find you in our list :-(
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Why are concrete and red-brick buildings cyan in infrared false color (IRFC) images?
Most building materials are made of soil (e.g. red tile roofs or concrete), thus most urban areas have the spectral signature of a soil.
Nevertheless, in IRFC satellite images we usually see bright urban areas in Bright Cyan instead of Dark Brown/LightBrown to Orange or Whitish. why is that?
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Hi @Matteo Biondi
This is because the buildings exhibit shorter wavelength that corresponds to red colour indication
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Hello.
I am looking for experiments on the use of cork as a thermal insulating material in building.
Thanks for yours answers.
M. DARCHERIF
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Hello,
We (IRESEN) organize the international event: SOLAR DECATHLON AFRICA in Benguerir in Morocco. 20 teams are competing to build ecological houses with high thermal insulation. Indeed, many of them use cork as a material insulator. you can visit us and meet our expertise in this area. However, I can give you some industrial contacts.
Best regards
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Hi!
I desperately need the recent consumption trends of cement and sand (million tonnes, preferably) in:
1. Australia (national)
2. New South Wales
3. Sydney region
I've been digging online for the past few days but to no avail.
Please cite references.
If you, perhaps, have data closely related to them, you may send them as well.
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Dear researchers I am wondering to work on new cement generation which might produces oxygen and absorb CO2 or even nitrogen, I worked on some potential bacteria's, does anyone have relevant study or idea?
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Dear Saeed,
This is an interesting and topical subject.
In the 1990s, an experimental site named Biosphere 2 was installed in the Arizona desert to replicate a viable ecosystem. In this closed environment, scientists surprisingly discovered that oxygen levels were decreasing unexpectedly. They then found that the walls of the cabin, made of cement, had absorbed some, without knowing exactly how much. If the amount of CO2 that can be absorbed by the cement is high, a world of possibilities could open. The idea would be to capture the CO2 produced during the manufacture of cement. CO2 would be used to produce fuel that would go, for example, in an airplane, and the aircraft would produce CO2 that would subsequently be absorbed by the cement. This gives a closed cycle. We do not add CO2 to the atmosphere because we recover it after generating it. Cement production is a polluting activity that should remain, even after the abandonment of oil and coal. Plants that produce cement, now considered as major polluters, could therefore be part of the solution of tomorrow.
On the other hand, for the first time, the degradation of cements over time has been translated by researchers in terms of CO2 absorption. It is a new, important and rapidly growing carbon sink that must now be taken into account. Between 1930 and 2013, about 4.5 billion tons of carbon were sequestered in cements, according to an international study conducted by the Chinese Academy of Sciences. This storage occurs over time and the degradation of cements through a carbonation process that reacts the calcium hydroxide contained in the cements with atmospheric carbon dioxide. This is the first time this amount has been evaluated and it has never been taken into account in carbon balances. But, as the researchers pointed out in an article published in the journal Nature Geoscience, if the degradation of the cement makes it possible to capture atmospheric carbon, the manufacture of cement and in particular of "clinker" (its main constituent forming a solid paste of limestone and clay) is a generator of greenhouse gases. The manufacture of cements is responsible for about 5% of anthropogenic carbon emissions and the degradation of these same cements, for the period 1930-2013, offs about 43% of these emissions. In the end, the balance of the cement remains negative but the delta could decline further in the next few years. Indeed, according to this study, this phenomenon is growing rapidly: from 0.10 Gt C / year (billion tonnes of carbon per year) in 1998 to 0.25 Gt C / year in 2013. The cements thus constitute a new carbon sink, which must now be integrated into climate modeling, that what the scientists point out.
Traditional concrete or Portland concrete is manufactured by heating limestone and clay at 1500 ° C in giant kilns. The considerable amount of energy required to heat the raw material, as well as the chemical reactions that take place during the decomposition of the limestone, produce, according to the International Energy Agency, some 0.83 tons of CO2 per ton of cement. When cement is mixed with water in the construction, each tonne absorbs 0.4 tonnes of CO2. There remains a net production of 0.4 tonnes of CO2 for every tonne of cement used. Novacem (a company from the Imperial College of London) is developing a cement based on magnesium oxide, a derivative of mineral silicates. Heated at a much lower temperature of 650 ° C, it emits less than 0.5 tonnes of CO2 per tonne of cement produced. But the crucial point is its ability to absorb large amounts of CO2 when it hardens.
Regards
Bachir ACHOUR
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Do you think that the most used building materials nowadays (steel, concrete and clay) will be considered very old materials after 1000 years?.
Nowadays, we consider houses of reeds, stone, logs and mud dating back to ancient times but in those times they were used to build castles, houses, houses of government and temples.
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Present construction materials will be replaced soon by other for environmental friendly and economic materials.
That will reflect on new lifestyle and business model we will have in near future and we will see those changes very soon.
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Looking for references or cases of implementation of exported industrialized constructive materials/methods within the local constructive contexts/cultures where they are implemented.
Generally the question is on risk factors and strategies to mitigate them when implementing constructive technologies in places where previously there is no knowledge or a poor knowledge of these technologies (e.g. when shipping overseas to a developing country). I am aware of literature on "construction risk factors", and on historical failures (e.g. "Maison Tropicale", Jean Prouvé) but I am here specifically interested in hearing about recent examples that the community might have heard of.
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I think that the problem you mentioned is bi-directional.
Poor quality assurance in developing countries may bring some risk to the application of sophisticated technologies and lack of experience causes many shortcomings in execution of works. You may find plenty of examples delivered by "Western" companies offering their services on developing markets. All those examples will justify even higher prizes of consulting on developing markets than back home :-)
But I'd like to emphasize an opposite problem: exporting of constructions and technologies that simply does not fit to another context (culture, climate, habits, customer tradition). You cannot (or better you shouldn't) copy-paste modern office buildings from Europe to Africa. Different sun exposure brings the need of excessive cooling (climate control) that makes those building very expensive in operation. It works well only in Gulf countries where energy is very cheap.
I personally met another problem of "standard foundations" for silos in Tanzania. The typical solution suitable for Polish (Central European) ground conditions were unacceptable for African loess soil and rainy seasons.
Another problem occurred when a properly designed (in Spain) steel exposition hall was build (according to that design) in Poland. The construction collapsed due to the load of the ice and snow on the roof in winter.
To summarize. I'm not sure to what extent my comments will be helpful. However I've an impression that we (in Europe and America) tend to blame the communities in developing countries of their "no knowledge or a poor knowledge" of our high-tech technologies. From my point of view (academic working for the industry), it is just our offer which is not properly fitted to our oversees clients needs, their culture, skills and overall demands concerning construction and maintenance.
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  • Are there any building materials that are capable of containing botanical life inside?
  • Is it possible to devise structures that contain botanical life?
  • What are the necessary requirements to be able to maintain botanical life in the structures of our spaces with an easy self-provision?
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What I am investigating is the possibility of generating structures that are sufficiently resistant but at the same time composed of organic components that allow plant life and that the structures have a closed life cycle.
I thank you for your answers, currently the concept of BIOArchitecture is very important for this topic, I hope soon to be able to provide more detailed information.
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What is the best technology for recovering waste from building materials, especially deconstructed concrete waste and sludge?
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Concrete is commonly recycled. It is crushed, the reinforcement bar is removed, and the material is screened for size. Market outlets for recycled concrete include road base, general fill, pavement aggregate, and drainage media.
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Use of python scripts in making supercell construction of materials (for DFT calculation)
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Hi,
There are a lot of good packages for DFT calculations and as you may know DFT itself is such a broad field and you should specify your question, but you can take a look at those links:
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Is it possible to deploy stainless steel 304 inside the mass spectrometry chamber to replace a defected side?
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So it's just inside the chamber, it's not supposed to replace a vaccum chamber wall, right? In that case there should be no problem. Just one question: what did you do that makes you ask this?
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Fourier transform infrared spectroscopy
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The EUROCHAMP-2020 european research infrastructure for atmospheric simulation chamber is freely distributing on his datacenter (led by Benedicte Picquet-Varrault ) a very efficient software dedicated to the deconvolution of FTIR spectra of mixture.
Developped by Mila Ródenas at CEAM (Centro de estudios ambientales del mediterráneo) this least-square fitting program is a stand alone application.
In my group we are using it on a daily basis and it has made our life so much simpler and our our results even more reliable.
You can download it here : https://data.eurochamp.org/anasoft/
Do not hesitate to register for free to be informed about updates and access hundreds of high quality gas-phase FTIR spectra.
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To have long performance life of PV Modules under desert conditions, any specific changes in-terms of material, design, construction are fabrication process are required?, if so what are those?
O. S. Sastry
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The main layer of the PV module which is the most affected in desert conditions is the polymer layer. A specific polymer encapsulant should be fabricated for desert conditions
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Which popular material used in the construction industry is a composite?
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Agree with Jamik Sohounhloue
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Deep well plates manufactured by NEST Scientific. Materials of construction is USP grade VI Polypropylene.
If you have any information please share your knowledge.
Thanking you in advance.
Regards
Sanat Myti
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Interesting..
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The stress-strain graph which we got was different, it has both a strain softening and hardening region. I had gone through this procedure for sand with the condition that samples were subjected to inclined principal stress during anisotropic consolidation. I have attached a sample stress-strain graph from a published journal.
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You cannot achieve the stress path involved continuous principal stress rotation in tri-axial cell. The principal stress direction can change but cannot change continuously!
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I use the ICE version 2 by the university of Bath. It's easy to use and based on valid methodology but it's a bit old.
I would appreciate it if you could introduce a new database.
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If still relevant- I would recommend the German open access Ökobaudat (https://www.oekobaudat.de). I would be careful with ICE since it refers to the british context. If you look at projects in your country ecoinvent is closest but not open access.
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Sustainable Public Procurement compliance versus very scarce resources in government service delivery. A typical example would be a Durban community in need of 500 houses and the South African government do have money to build them. However, in order to comply with SPP the government must adopt and use "green houses" approach which is, in most cases uses very expensive building material. Therefore, the government must choose to build "normal" 500 houses OR build only "green" 70 houses. Will the community understand why must they get 70 houses while the money is enough to build 500 houses. Maybe, the well developed economies would survive the SPP compliance. What is your take on this ?
📷
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Dear
The majour issue in green and sustainable housing construction is to reduce the impact on environment, reserve the natural resources by using recycled materials in new construction activities, and economy which could be reached through the previous mentioned activity.
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What is the main advantage of concrete over other building materials?
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Among all the construction materials used in the world, concrete is most widely used due to its unique advantages compared to other materials
1. Concrete is Economical
2. Concrete Hardens at Ambient Temperature
3. Ability to be Cast into Shape
4. Energy Efficiency in Production
5. Excellent Water Resistance Characteristics
6. High-temperature resistance
7. Ability to Consume and Recycle Waste
8. Application in Reinforced Concrete
9. Low or Zero Maintenance Required
10. Multi-Mode Application
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Given the fact that different regions of the world have different climatic conditions (often times these conditions affect construction materials and environment), one wonders if it is really too appropriate to adopt foreign standards in designing engineering projects in areas different from where they were developed. Please, what's your take on this?
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I agree with Joaquin Marti . In addition, a country/nation can indeed adopt foreign standards in designing and constructing their engineering projects; however, with suitable modifications or revisions that take into consideration the specific needs and necessities of that country or region. These necessities can extend to many aspects including, but not limited to, the climatic conditions, type of project, availability of material, social aspects, and the authority to apply the standards.
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I'm looking for the ratios of cement : sand : aggregates + water.
Please reply by referring valid references.
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Dear, the mix design depends mainly on the properties of materials which is variable. Based on my experiance, the following mix can show 40 MPa strength. 1:1.5:2.75, w/c ratio 0,4.
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Dear all in Infrastructure Materials area,
We are pleased to invite you to register in the following two courses that focus on Innovations in Infrastructure Materials:
1. Advances in Asphaltic Materials
2. Innovative, Next-Generation Concrete
The event will take place on 23-25 April 2019 in the Landmark hotel, Amman, Jordan.
The objectives of the training courses are:
1. Present recent innovations in infrastructure materials in order to enhance teaching content and promote research in higher education institutions
2. Introduce novel applications of materials in construction of sustainable infrastructure systems
For more information please refer to the attached brochure.
Target group:
1. University professors and instructors,
2. Graduate students and researchers,
3. Professional engineers interested in innovative applications of infrastructure materials
For additional information please contact:
1. Dr. Aslam Al-Omari (aaalomari3@just.edu.jo)
2. Dr. Mohammad Khasawneh (mkhasawneh@just.edu.jo)
Looking forward to meeting you in Amman.
Yours sincerely,
P.S.: Please feel free to circulate the information to your professional network especially those interested in infrastructure materials.
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Thanks Rabea
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How to extract the binder content without changing the chemical composition of this binder?
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i may help you with this .. but needs more details.. please inbox me
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I want to separate the individual elements from a sample. Simply without chemicals. The sample includes:
Nepheline 34.5%. Alumina/Aluminium Oxide 14.4%. Anatase, syn TiO2 12.9% and Quarts. It is in powder form. As you can see there are some valuable elements, too good the use as building material.
I require the method to be scalable to industrial scale. Simple and cost effective.
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Not sure how you can do it without chemicals. For a simple, scalable, and cost effective technique, try exploiting the difference in solubilty of the various compounds in different solvents (and as a function of temperature); use the difference in solubility as the driving force for separation.
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I have used CONTACT 173 and TARGET 170 element. The shear bond strength of brick-mortar is 0.005 MPa, coefficient of friction for bed joint is 1.2 and head joint is 0.85. Does it works if i use ''bonded always'' contact pair?
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In ansys you can use CZM material with identifying the debonding parameters as an input. The contact should be bonded with pure penalty or augmented lagrange formulation.
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Do you think that there will be a time when there are no empirical relations to express the behavior of construction material and it will be replaced by accurate analytical relations ??
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I don't think so, as every day a new material has been established and used in construction.
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Please share your opinion on same.
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BY the layer of CERAMIC COATINGor by thermal barier coatng TBC
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Do you think it is possible to get remove of the gypsum found in the demolished building so that it can be reused as crushed aggregate or any other use?
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This is fundamentally possible. But you need a good waste management on site and an appropriate disposal/treatment facility. I have seen a couple of examples in the praxis
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Upon your experience.. in construction material.. can we
re-used the reinforcement extracted from demolition of a building for the construction of a new building?
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Dear Kolawole Afolabi ... Thanks for answering...
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I want to calculate henry constant of co2 in water with two semi permeable membrane in materials studio package ((based on this article,A simple molecular dynamics simulation for calculating Henrys constant and solubility of gases in liquids.) I dont know what the materials i use for build this membrane.
Ones i used zeolite materials for build this membrane and a simulation was done but the density profile is not good calculated .
can anybody help me and how i simulate this article with materials studio package?
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Dear Afsane
You may try 2D carbon based nanomaterials like Graphyne family.
Bests.
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Hi,
The required material for the construction of one motorway embankment is csa 0-300mm? Fines percent limit is set at 10% max.
The uniformity coefficient required is cu>9.
Large diameter sieves do not exist on site nor at any relevant geotech laboratory.
Expert supervisor had to control the quality of built-in material and the solution applied was to use one software for digital image processing in order to determine the grain size distribution curve. Then, the cu could be determined.
Does anybody have experience with the usage of image processing software and reliability of obtained results?
Comparison of sieved data with image processing results would be highly appreciated!
Thank you
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I hope this conference paper be helpful:
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In practical, does it common practice to weld alternate ends for hollow core precast system.... need your opinion ?
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The ends of the plank's should not necessarily be welded,but rather be made to rest on support like beam and the beam is rebar and cast in- situ hold the ends. Please always ensure that the plank's length is designed to span between the available support.
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what materials can developed the ability of steel to resist corrosion, how can do that technically
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The addition of Chromium will change the composition of steel to make it has more resistance to the corrosion.
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How we can design repairable regular steel buildings?
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Please check reference below.. hope it will be helpful for you… Regards…
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How weather conditions (air temperature, humidity, solar radiation, precipitation, etc) affect the construction materials (concrete, steel, wood)?
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Please check reference below.. hope it will be helpful for you… Regards…
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i am developing a LCA on a construction project and I am looking for new alternative solution for the concrete material
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Please check reference below.. hope it will be helpful for you… Regards…
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Our group design fiber rolls rack. Safety that must be taken to when handle the fiber rolls? 
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Please check reference below.. hope it will be helpful for you… Regards…
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Where could I find data of production cost and energy consumption of building materials and raw materials extraction processing for building materials manufacture?
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Interesting..
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if there is so then it may be good alternative material to electric Wires.
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Please check reference below.. hope it will be helpful for you… Regards…
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what are the new developments and new researches in the construction materials of turbine stator blades ?
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What do you think about TiB2-based ultrahigh temperature ceramics? If you list the needed properties, it can help us to select the best material or design a novel composite.
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