Results 11 to 20 of about 7,136 (128)
Characterization and Reactivity of Natural Pozzolans from Guatemala
Applied Sciences, 2022 The possibility of using pozzolanic materials as a partial substitute for Portland cement (PC) to develop mortars and concretes promotes environmental and economic benefits.
Oscar M. Sierra +5 more
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Potential use of ceramic sanitary ware waste as pozzolanic material
Boletín de la Sociedad Española de Cerámica y Vidrio, 2022 This paper evaluated the pozzolanic activity of ceramic sanitary ware (CSW) waste when blended with Portland cement (PC). CSW waste units were broken, crushed and milled to reduce their particle size.
Lucía Reig +4 more
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Design Recommendations for Columns Made of Ultra-High-Performance Concrete and NiTi SMA Bars
Buildings, 2023 The use of new materials in construction endows structures with better mechanical characteristics. The combination of ultra-high-performance concrete (UHPC) and nickel and titanium (NiTi) shape memory alloy (SMA) improves the behavior of building ...
Javier Pereiro-Barceló +3 more
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Materiales de Construccion, 2009 The fluidized-bed catalytic cracking catalyst (FCC) it is a residue from the industry of the petroleum that shows a high pozzolanic reactivity and, in cementing matrix, it significantly improves their mechanical behaviour as well as durability.
J. Payá +3 more
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Impregnación superficial, con azufre, del hormigón
Materiales de Construccion, 1979 Se puede afirmar que la durabilidad del hormigón está principalmente condicionada a su compacidad y a su aislamiento de los ambientes agresivos. Los agentes destructores endógenos se consideran eliminados cuando el hormigón está preparado correctamente ...
F. Dutruel, J. P. Lehair
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Evaluation of Rice Straw Ash as a Pozzolanic Addition in Cementitious Mixtures
Applied Sciences, 2021 Rice husk ash is one of the most widely studied biomass ashes used in pozzolanic addition. Given its lower silica content, rice straw ash (RSA) has been explored less often, despite the fact that, according to the United Nations Food and Agriculture ...
Samantha Hidalgo +5 more
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Morteros ligeros con aditivos químicos y zeolitas naturales sílico-activas
Materiales de Construccion, 1994 The influence of chemical admixtures (superplasticizer-retarder) and active silica minerals (fraction less than 45 μm) in cement hydration, mechanical strength increase and variations of the physical properties of light weight mortars with partially ...
Regino Sotolongo Lorente +2 more
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Advances in Civil Engineering, Volume 2018, Issue 1, 2018., 2018 The objectives of this research were to estimate the thermal transmittance and some physical‐mechanical properties of a housing cover built with roofing tiles made from recycled plastics and rubber and compare them with three other traditional solutions for housing cover: ceramic roofing tiles, concrete roofing tiles, and zinc sheets. This roofing tile
Rosana Gaggino +6 more
wiley +1 more source
Caracterización de escorias de cobre de fundiciones chilenas del Siglo XIX
Revista de Metalurgia, 2016 El objetivo de este trabajo es caracterizar 4 escorias de fundiciones de cobre del siglo XIX, procedentes de vertederos abandonados en la Región de Atacama - Chile, utilizando las técnicas de fluorescencia de rayos X (FRX), difracción de rayos X (DRX ...
Amin Nazer +3 more
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Arquitectura moderna en El Salvador (1950-1980): una interpretación de dos tendencias
Revista de Arquitectura (Bogotá), 2022 Entre 1950 y 1980, la arquitectura moderna en El Salvador se consolidó y produjo algunas de sus obras más emblemáticas a través de dos tendencias. La primera puede denominarse racionalista estructural, y se fundamentó en las cualidades del hormigón ...
Carlos Ernesto Ferrufino-Martínez
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