Results 21 to 30 of about 29,279 (110)

Morteros ligeros con aditivos químicos y zeolitas naturales sílico-activas

open access: yesMateriales 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
doaj   +1 more source

The Comprehensive Comparison of Thermal and Physical‐Mechanical Properties of the Recycled Rubber and Plastic Roofing Tiles versus Roofing Tiles Made with Different Traditional Materials

open access: yesAdvances 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

Comprobación a punzonamiento según la instrucción española EH-80

open access: yesInformes de la Construccion, 1982
No disponible.
P. Jiménez Montoya
doaj   +1 more source

Módulo Estático de Elasticidad del Hormigón Fabricado con Agregados de la Mina de San Roque, Imbabura, Ecuador

open access: yesRevista Politécnica, 2020
El Módulo estático de elasticidad del hormigón es un parámetro que se utiliza para el cálculo y control de desplazamientos y deformaciones en una estructura de hormigón armado.
Diego Mauricio Sánchez   +3 more
doaj   +1 more source

Potential use of sewage sludge ash (SSA) as a cement replacement in precast concrete blocks

open access: yesMateriales de Construccion, 2014
The present study explored the technological feasibility of re-using sewage sludge ash (SSA) as a Portland cement replacement in commercially manufactured pre cast concrete blocks.
M. Pérez-Carrión   +6 more
doaj   +1 more source

Evaluation of electric properties of cement mortars containing pozzolans

open access: yesMateriales de Construccion, 2011
In this paper the evolution of the microstructure of Portland cement mortar is analyzed, by using electrical impedance measurements. Cement mortars are compared without and with two pozzolanic substitutions: spent fluid catalytic cracking catalyst (FCC ...
J. M. Cruz   +3 more
doaj   +1 more source

Apuntes de Hormigón Armado. Adaptados a la Instrucción EHE-08 [PDF]

open access: yes, 2012
Este libro de "Apuntes de Hormigón Armado" desarrolla los contenidos relacionados con el cálculo y comprobación de estructuras de edificación convencionales construidas en hormigón armado.
Varona Moya, Francisco de Borja   +2 more
core   +1 more source

Evaluation of Rice Straw Ash as a Pozzolanic Addition in Cementitious Mixtures

open access: yesApplied 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
doaj   +1 more source

Introducción a las estructuras de hormigón [PDF]

open access: yes, 2019
En este tema se presentan las Estructuras de Hormigón Estructural, como una introducción al estudio de esta tecnología estructural. Se da respuesta a lo que se entiende por hormigón estructural, se justifica el por qué dos materiales tan distintos, como ...
Troyano-Moreno, Miguel
core  

Fundición de elementos en hormigón [PDF]

open access: yes, 1986
Unidad de la serie “Construcción. Construcción de estructuras en hormigón” en la que se describen materiales, métodos, y conceptos asociados a los procesos de fundición del hormigón partiendo de las nociones generales sobre este, dosificación según su ...
Ramirez, Leopoldo   +2 more
core  

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