Wilfrido Martinez Molina

Wilfrido Martinez Molina
Universidad Michoacana de San Nicolás de Hidalgo | UMSNH · Faculty of Civil Engineering

About

45
Publications
16,778
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135
Citations
Citations since 2017
20 Research Items
118 Citations
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2017201820192020202120222023051015202530
2017201820192020202120222023051015202530

Publications

Publications (45)
Article
Full-text available
Anthropogenic heat (QF) is one of the parameters that contributes to the urban heat island (UHI) phenomenon. Usually, this variable is studied holistically, among other anthropogenic flux such as industrial, vehicular, buildings, and human metabolism, due to the complexity of data collection through field measurements. The aim of this paper was to...
Article
Innovations are being developed with different additives in concrete mixtures to enhance their performance under certain conditions. This work models the split tensile strength through the electrical resistivity using a machine learning (ML) algorithm in different concrete mixtures. One of the most frequent non-destructive tests used on concrete is...
Article
Full-text available
Se analizaron modificaciones presentadas por distintos estabilizadores (cal, cemento, fibra de nopal, líticos de río, líticos volcánicos, sulfato de sodio y yeso) en propiedades y envolvente de falla de un suelo arcilloso natural remoldeado de Santiago Undameo, en Michoacán, México. Al suelo arcilloso se le realizó granulometría, hidrometría, prueb...
Article
This work presents a new approach for resilience assessment in road transport routes interrupted by natural causes (rain, earthquakes) as well as by human influence (accidents). In this way, by knowing the state of preservation of the elements located within a road, particularly bridges, it will be possible to identify which are those with the high...
Conference Paper
Full-text available
En el ámbito de la construcción de tierra, se tienen como antecedentes estructuras y conjuntos de gran antigüedad, que forman parte del patrimonio cultural; también se encuentra todos ls tipos vernáculas, para la edificación de viviendas con materiales tradicionales y disponibles en el contexto local. Hoy en día se tiene por correcta la apreciación...
Article
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This paper presents a comparison of six index properties collected during durability inspections of five Mexican seaports. Typical durability indicators such as compressive strength, saturated electrical resistivity, ultrasonic pulse velocity, percent total void content, capillary porosity, and chloride concentration profiles were analyzed to obtai...
Article
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The present research work shows the effect on the carbonation of Portland cement-based mortars (PC) with the addition of green materials, specifically residues from two groups: agricultural and industrial wastes, and minerals and fibres. These materials have the purpose of helping with the waste disposal, recycling, and improving the durability of...
Article
This work aims to study the prediction of bearing capacity of prestressed concrete beams subjected to accelerated corrosion process using Machine Learning (ML) techniques. After data collection, the results were used to model the behavior of flexural stress, and predict their final load capacity, considering position, length, and width of the crack...
Article
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Materials play a fundamental role in any branch of civil engineering. From ancient times to the present day, society has required enormous amounts of construction materials, which implies an excessive exploitation of the natural environment. The present research work consisted in the design and development of asphalt mixes with a partial substituti...
Article
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Adobe masonry is one of the oldest construction systems still in use today, Mexico has an enormous cultural heritage with traditional adobe houses being very representative of the rural communities and their culture. The 2017 Puebla Earthquake on September 19th struck the country causing the loss, destruction, and damage of historic buildings in se...
Article
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Research work was carried out on rocks obtained in the municipality of Tlalpujahua Michoacán, located in different quarries of stone material, classifying the name of the quarry with the name of the community where the stones are located: “El moral” stones of bronze (BR) and golden (D) color, “la américa” stones of gray (G) and pink (R) color, “lla...
Conference Paper
Full-text available
La industria de la construcción es una parte fundamental para el desarrollo de cualquier nación por lo tanto durante su proceso y posteriormente al final de su vida útil los residuos generados por esta infraestructura son muy grandes por lo que se ha convertido en un problema de contaminación ambiental, por lo que con esta investigación se busca la...
Article
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The creation of sustainable hydraulic concrete from the use of waste materials, such as PET bottles, whose performance is better than the conventional concrete, has been a great challenge worldwide within the construction industry. This article shows a study on the application of PET fibers resulting from the recycling of post-consumer bottles, whi...
Article
In the restoration field and the cultural heritage, the treatment of colour is very important, being an important factor for the decisions and interventions in historic buildings. However, some of these have not the same recognition and protection by authorities, being really vulnerable, especially against natural phenomena like the earthquakes. Af...
Article
Restoration works for the cultural heritage in México have commonly used traditional materials, being the slake lime one of the main solutions employed. Nevertheless, other lime products have not been studied or applied in patrimonial works. The main objective of this research was to verify if high purity limes can be used as an alternative for res...
Article
Full-text available
The use of dehydrated fibres of cactus, Opuntia ficus-indica (FN), and starch (corn starch,Zea Mays (MZ)) as partial substitutes for the total mass of Portland Cement (CP) in the making ofmortar, aims at modifying its physical and mechanical properties, reducing the amount of cementand the CO2 emission. Four mixtures of CP mortar were designed inco...
Article
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This work shows the results carried out by mixtures of Portland cement mortars with twoadditions: ash brick ovens (CELU) which acting as pozzolan, and ground expanded perlite (PEM)as filler. The objective of this research is to determine whether by adding a pozzolan and fillermixtures base Portland cement is possible to increase physical and mechan...
Article
This paper reports a study carried out to evaluate the effects of corrosion inhibiting admixtures, calcium nitrite and disodium tetrapropenyl succinate, in combination with supplementary cementitious materials, fly ash and silica fume Portland cement, on the compressive strength and certain durability properties of high performance concrete. Mixtur...
Chapter
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This work is part of the DURACON Ibero-American project, which seeks to characterize concrete durability under environmental conditions, based on reinforced concrete sample exposure in at least two different atmospheres (marine and urban), for each of the 11 countries in the project. Specimens were exposed to the environmental conditions of 13 Mexi...
Article
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En este proyecto se analizo el comportamiento de 35 cilindros de concreto hidraulico y 60 especimenes de concreto hidraulico adicionado con fibra de cactus opuntia. Para la elaboracion del concreto, se empleo material petreo de canto redondeado, cemento CPO 30R RS BRA y agua potable; de acuerdo con el metodo del American Concrete Institute. La fibr...
Article
Since the construction industry is responsible for 30% of the CO2 emissions, one way to reduce the impact of the construction activity is to substitute ordinary Portland cement by pozzolanic materials. The application of using agricultural waste in the production of pozzolanic material is technically feasible, due to the calcination of organic mate...
Article
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The generation of solid residues of hydraulic concrete, also considered waste, is turning into an environmental problem. The construction material primarily manufactured is Portland cement, but one of the main problems is its high manufacturing temperature which generates pollutants. The use of grinded aggregates that come from the demolition of hy...
Article
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This article presents results for the physical characterization of mortar cubes fabricated with botanical (green) dehydrated additions such as nopal (Opuntia ficus indica) and aloe vera. A total of 84 mortar cubes were fabricated with and without these natural additions and tested for a period up to 900 days. Mortar without such additions served as...
Article
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Quality tests applied to hydraulic concrete such as compressive, tension and bending strength are used to guarantee proper characteristics of materials. All these assessments are performed by Destructive Tests (DTs). The trend is to carry out quality analysis using non-destructive tests (NDT) as has been widely using for decades ago. This paper pro...
Article
Welding process between dissimilar metals during rehabilitation of damaged structural reinforcement by corrosion, has a number of microstructural changes due to the heat generated at the time of joint. These transformations propitiate the heat affected zone to be more susceptible to damage by corrosion. The present work evaluates the corrosion beha...
Article
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The static modulus of elasticity (Es) is an important parameter in the analysis of hydraulic concrete structures, changes have been made to the regulation of construction; these changes require minimum values for the Es, so now, in addition to concrete compressive strength (fć) also Es values should be ensured. A methodology to predict Es is propos...
Article
The main objective was to determine the effect of additions of cactus mucilage (colloquially called cactus slime which on drying produces weddellite and whewellite crystals, calcium oxalates) and/or volcanic ash in masonry mortars made with lime, on the properties as mechanical resistance to compression, tension and bending, and the physical proper...
Article
The historic centre of Morelia, Mexico has over a thousand architectonic monuments catalogued. This allowed the city to become part of the list of world heritage site by UNESCO in the 90s of 20th century. The location of Michoacan, the State in which Morelia is the capital, allowed it to have an abundance of acidic extrusive igneous rocks such as t...
Article
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Physical characterization tests were performed on cement-based mortar containing different addition levels (0, 1.5, 4, 8, 42, and 95%, by water replacement concentration) of opuntia ficus indica (OH) mucilage. Cement mortar cubes prepared with and without mucilage were tested 2145 days after being fabricated. These preliminary findings suggest that...
Article
Full-text available
This research in progress includes results on the corrosion performance of reinforcing steel in alkaline media when two different dehydrated cacti ( Opuntia ficus-indica —Nopal—and Aloe Vera) were used as additions in pH 12.5 and 13.3 solutions and in concrete. The dehydrated cactus addition was mixed at different concentrations by either solution...
Article
Full-text available
One of the responsibilities of a Civil Engineer is to make decisions regarding preservation of infrastructure; therefore, there have been established concepts such as risk and risk analysis. Risk analysis, is a methodology applied to determine and evaluate the risk magnitude. From the structural engineering point of view, it is required that any st...
Article
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In Mexico, since the early stages of the civilization, the stone masonry has assumed an important role in construction due to the wide availability of this kind of material. Masonry is a material composed by bricks, carved or even rubble stones jointed without (dry joint) or with mortar (mortar joints); which is principally formed with sand, water...
Article
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RESUMEN El edificio en estudio es emblemático. Se encuentra desplantado sobre un suelo arcilloso. Ha sufrido modificaciones por motivos estructurales, arquitectónicos, estéticos y funcionales. La construcción de este templo data del siglo XVI. Se construyó con mampostería de piedra natural junteada con arcilla y techumbre de madera. Su planta está...
Article
Clays were used intensively in cultural heritage’s monuments and objects. Conservation procedures can be performed specifically for earthen materials using stabilized clays, considering that the aesthetic features must be preserved in order to avoid drastic differences and the lost of their patrimonial value. This work presents the study of the mec...
Article
This investigation presents some of the results from an Iberoamerican project called "Effect of the environment on reinforcement durability" (DURACON) in its six years period. This project correlates the influence of urban and marine meteorochemical parameters on the performance of reinforced concrete structures. The present paper presents the resu...
Article
Full-text available
The state of Michoacan is located in the geographical crossing of the Mexican Volcanic Belt, the Sierra Madre Mountains; the River, and the Cocos Plaques. This geographical condition provided igneous stones, and these rocks suffered from meteoric attack afterwards. The igneous extrusive and intrusive stones changed into metamorphic minerals or acce...

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Project (1)
Project
This project pretends to study, understand, learn from, and reappraise vernacular architecture collaborating with the local communities of Michoacan, Mexico. With the identification, analysis and and study of the traditional construction techniques and local materials, we pretend to disseminate the results of our research with the local communities in order to raise awareness of the importance of the vernacular materials and techniques.