Construction Materials - Science topic

Hi

You can find the detail information via the link below.

Before submitting your paper, please send me your Abstract and we will consider applying a discount.

Kind regards

The Citi Bloc standard basket is highly effective in enhancing the accuracy and comparability of international construction cost assessments. Its standardized approach, coupled with the ability to adjust for regional differences, provides a robust framework for comparing costs across different markets. This makes it a valuable tool for multinational companies, investors, and policymakers involved in global construction projects.

However, the effectiveness of the Citi Bloc basket ultimately depends on the quality of the data inputs and the proper application of the methodology in different contexts. When used correctly, it can significantly improve the reliability of cost comparisons, leading to better decision-making in the international construction industry.

Structurally,both precast and cast in place would have been designed to withstand all stresses, moment and forces.

Cast in place concrete floor benefits are:

1) It helps to reduces lifting compared to pre cast concrete

2) Last minutes adjustment is possible because it has not been cast.

3) It requires less adjustment because all dimensions of floors are already in place of required position compares to pre-cast that can be over dimension or under dimension.

Rockets and other spacecraft typically have reaction wheels https://www.rocketlabusa.com/space-systems/satellite-components/reaction-wheels/

However sleds are vehicles without wheels and mass drivers need not have wheels.

Dear Volodymyr Durmanov

Thank you for sharing with us your extensive knowledge.

Best regards,

Kamil.

There are technical analyses available in the literature on this subject. I recommend supporting your analyses with MCDM methods (weighting and ranking).

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Yıldırım, R., & Karadöl, İ. (2024). Çok Kriterli Karar Verme Metodu Kullanılarak Biyogaz Üretiminde Kullanılacak En İyi Enerji Bitkisinin Belirlenmesi ve Belirlenen Bu Enerji Bitkisinin Türkiye Ölçeğindeki Enerji Potansiyelinin Hesaplanması. Politeknik Dergisi1-1.

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Basically, the importance and the effects of the thermal bridges are strongly reduced when the insulation layer (including doors and windows) is placed outside the building structure.

Many books are published and collectively those books would provide the information you seek. Unfortunately, unless you are immersed in the actual start to finish of a project your academic skills cannot make you a builder without that special ingredient "experience". The best project managers I have worked with have been licensed architects, and the most effective construction managers have come up through the trades, or have owned a business. Start with a book on communication styles so that you can articulate what you want to know, why you need to know it, and where you are going with that knowledge.

Here are some technology and software - Autodesk's Embedded Carbon in Construction Calculator (EC3) tool - Revit 2019 - Building Information Modeling (BIM) - Inventory of Carbon and Energy (ICE) - LEED (Leadership in Energy and Environmental Design) - BREEAM (Building Research Establishment Environmental Assessment Method) - Green Globes - Modelica

Thank you Gonzalo Graces, it is my pleasure to see your suggestions, keep it up .................................

Dear Deukaji Gurung

Certainly! Conducting a study on the energy status of construction materials is a fascinating and relevant topic. Here are some reference databases and research articles that you can explore to gather information on energy status, efficiency, and related parameters of construction materials:

When searching these databases and journals, consider using the following keywords and phrases to find relevant articles and research papers:

Just I am waiting and following you, all you are welcome to drop your suggestion. thanking you

Er. Deukaji

Yes, there is a growing trend towards incorporating old, traditional construction techniques into modern sustainable practices. Mandy traditional building methods have proven to be environmentally friendly, durable, and energy-efficient. For example, techniques like Rammed Earth Construction, Adobe and Timber Framing have gained popularity due to their low carbon footprint and use of locally sourced materials.

These methods often require less energy and resources compared to conventional construction, making them more sustainable. Additionally, traditional techniques often prioritize natural ventilation, passive heating and cooling, and use of renewable materials, which align with sustainable principles.

By integrating these time-tested practices with modern innovations and technologies, we can create buildings that are not only environmentally friendly but also aesthetically pleasing and culturally significant.

Ask Salah hhhhhhh

sustainable construction means the application of Eco- friendly, adaptive, and available materials

You are requested to refer my research papers on eco-friendly materials

Yes, you could. Look around, even here, on RG net. In addition, Nabodyuti Das made a good point.

Md. Baharul,

Choosing a building construction material-related thesis topic is critical to the research process. There are numerous topics to consider, and selecting the right one requires an assessment of available resources, careful selection of the most relevant material, and awareness of the implications of any chosen topic. When choosing a thesis topic, it is important to evaluate our research goals. While certain construction materials have significant investments of time and resources associated with studying them, there may need to be more data to support a thesis conclusion. Therefore, when exploring potential topics, we should ensure a sufficient body of research and evidence to infer. This literature review should cover theoretical and practical conceptions and be supported by reliable sources. For example, Siu et al. (2015) consider the implications of using sustainable materials in construction, while Lee and Elhag (2017) analyze the design considerations associated with the seismic performance of building materials. Research should also look beyond construction materials, as many topics are interdisciplinary. For example, Lu et al. (2014) explore renewable energy and carbon emissions when selecting building materials. An important aspect to assess when choosing a construction materials-related topic is applicability to real-life situations. For example, a fire-resistant materials thesis must consider the different materials' actual characteristics and the appropriate testing and research methods.

Also, ethical considerations may be necessary. For example, Lü and Chai (2017) review the issues of environmental sustainability and resource consumption when selecting construction materials. These broader implications should be taken into account when selecting a topic. Finally, financial resources should be considered when selecting a construction materials-related thesis topic. Some studies may require expensive access to materials or equipment to produce special data. Determining the availability of resources should be done early on in the research process to ensure a realistic timeline can be devised.

In some cases, the availability of technology or facilities may even limit the efficacy of potential research topics. In summary, when selecting a building construction materials-related thesis topic, careful consideration should be made about the relevant literature, applicability to real-life situations, ethical concerns, and financial resources. An appropriate and effective research topic can be selected by carefully assessing all aspects associated with research goals.

References:

Lee, S., & Elhag, T. (2017). Seismic performance of high-strength concrete columns reinforced with polymer mesh. Materials and Design, 108, 535-546.

Lu, C., Lu, G., Sun, X., & Zhai, Z. (2014). Evaluation of the impact of renewable energy resources on the life-cycle carbon emissions of building materials. International Journal of Low-Carbon Technologies, 9(3), 212-221.

Lü, J., & Chai, Y. (2017). Review the financial and environmental analysis of building materials selection for eco-building. Applied Thermal Engineering, 125, 1559-1571.

Siu, L.K.W., Mschetter, F.S., Heung, V.C.S., Fu, Y.Z., & Mun, S.Y. (2015). Sustainable and renewable energy use in building material selection: a life cycle assessment and economics approach. Advances in Building Energy Research, 9(2), 186-210.

Here are some bibliographic references I found on the use of circular building materials:

Attrition and abrasion tests are also recommended in some cases by Los Angeles Abrasion Test

Topics related to secondary ressources and waste recycled in new construction material

Yes, various questionnaires and research tools can be used to explore the topic of preserving indigenous people's cultural identity through architecture. Here are some examples:

These are just a few examples of the many tools and resources available for exploring the topic of preserving indigenous people's cultural identity through architecture. Depending on your specific research question or area of interest, other tools or approaches may be more relevant to your work.

The study of the applicability of secondary resources for the construction of infrastructure facilities is a necessary step in the ESG development of a circular economy.

Good Luck!

More ideas could find at our project:

We applied MFA at the building level, and at every residential building. The result has been published and hopes it can help you. Camille Vandervaeren

Silica Fume;

Water to cement ratio influences concrete permeability,

Etc.

Hello sir, did you find that which you are looking for?

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

In my opinion, based on the quality of articles I have accessed in my area, I can say MDPI materials are of good quality.

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

you can look at QA guidelines.

Dr. Milica Vasić,

You're welcome.

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).

Kindly check the following useful RG link:

Dr. Alyaa Al-Attar

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

[1]

I hope this site may help you:

This is a good question.

Yes we have but can not use the apparatus

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.

Dear Lareba Adélaïde Ouedraogo

Check out the following papers, they might help you:

Hi,

I hope this pdf will be useful for your question?

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.

Dear Shraddha Kadel

You may see the below-given article for your question.

With warm regards.

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.

Thanks, Interested

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

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.

https://www.mm-network-ing.de/

Thank you

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

It depends on your product.

The International Conference on Sustainable Materials, Structures and Systems which will be held in London from 18 to 19 November 2021.

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.

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.

ANOVA also falls under the category of parametric analysis methods which perform the analysis after defining the distribution of the recruitment population in advance. Therefore, normality, independence, and equal variance of the samples must be satisfied for ANOVA. The processes of verification on whether the samples were extracted independently from each other, Levene's test for determining whether homogeneity of variance was satisfied, and Shapiro-Wilk or Kolmogorov test for determining whether normality was satisfied must be conducted prior to deriving the results.

Hello everybody,

I have a question about this subject.

What retarder materials for delay concrete are there? for example gluconate sodium, sugar.

thanks

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

The only important parameter to guarantee sustainable aviation is the transition to new synthetic green biofuels.

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

Dear Hinde

Please find the attached file which represents the recent article about your request.

Regards

Following.

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

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.

Ok it's a better choice to suggest it

Thankfully

You can use : Plaxis or Geostudio

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?

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 :-(

Please take a look at these attached links

https://ec.europa.eu/environment/ipp/pdf/eipro_report.pdf

http://www.utc.fr/~hagegebe/UV/MQ12/CORRECTIONS_TD/%5BASHBY99%5D%20-%20Materials%20Selection%20In%20Mechanical%20Design%202Ed.pdf

https://www.canfor.com/docs/why-wood/tr19-complete-pub-web.pdf

https://www.tandfonline.com/pricing/journal/rbul20

Hi @Matteo Biondi

This is because the buildings exhibit shorter wavelength that corresponds to red colour indication

Thank you Mr.Muaid for answering the question.

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

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

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.

Dear Antonio Lopes Correia

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.

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.

Thanks for your answer, Ben Turk Dariusz Tomaszewicz Markanday Giri Bruce Alfred Aplicano

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.

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:

http://pyquante.sourceforge.net/

https://pypi.org/project/pyjarvis/

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?

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.

If you use it and publish with it do not forget to acknowledge " the European Union’s Horizon 2020 research and innovation programme through the EUROCHAMP-2020 Infrastructure Activity under grant agreement no. 730997 " this is the only reward we request.

More info here on EUROCHAMP here : https://www.eurochamp.org/