Results 1 to 10 of about 1,053 (162)

Materiales compuestos. Aplicaciones

open access: yesInformes de la Construccion, 2001
Se ha extendido en la actualidad el uso de materiales compuestos formados por resinas poliméricas o plásticos, reforzados con fibras de vidrio. de carbono o fibras de aramida, que alcanzan grandes resistencias, del mismo orden que la de los aceros, con ...
Domingo Escudero López
doaj   +3 more sources

Kinetic, equilibrium, and thermodynamic study of Methylene Blue adsorption on orange peel biochar prepared by microwave-assisted pyrolysis [PDF]

open access: yesScientific Reports
This study presents a sustainable approach for Methylene Blue (MB) dye removal using pristine, non-activated biochar derived from orange peel waste via Microwave-Assisted Pyrolysis (MAP). The key novelty lies in the systematic comparison of the biochar’s
Jhonny Correa-Abril   +4 more
doaj   +2 more sources

Materiales compuestos reforzados con fibra [PDF]

open access: yesCiencia y Sociedad, 2006
Estos materiales compuestos (materiales en los que ambos componentes mantienen sus entidades al ser mezclados ) difieren de la mayoría de los materiales de ingeniería en que sus propiedades mecánicas son altamente dependientes de la dirección de las ...
Vesselina Radeva
doaj   +2 more sources

Uso de materiales reciclados en compuestos cementicios

open access: yesTecnura, 2019
Contexto: La producción de hormigón se caracteriza por una importante demanda de energía y materias primas, emitiendo grandes cantidades de gases de efecto invernadero (GEI).
Hernán Xargay   +4 more
doaj   +5 more sources

Materiales compuestos lignocelulósicos obtenidos mediante extrusión

open access: yesRevista Politécnica, 2013
La presente investigación cubre la obtención de madera plástica en diferentes composiciones y su caracterización mediante ensayos mecánicos de tracción, flexión e impacto, así como la determinación de dureza y densidad de los diferentes compuestos.
Daniel Esteban Villamar Cabezas   +2 more
doaj   +1 more source

Alkali-activated concretes based on fly ash and blast furnace slag: Compressive strength, water absorption and chloride permeability

open access: yesIngeniería e Investigación, 2020
Concretes based on alkaliactivated binders have attracted considerable attention as new alternative construction materials, which can substitute Portland Cement (OPC) in several applications.
Daniela Eugenia Angulo-Ramírez   +2 more
doaj   +1 more source

Morphological, Mechanical and Thermal Characterization of Intralayer Hybrid Composites Based on Polylactic Acid (PLA) and Sisal Fiber

open access: yesJournal of Natural Fibers, 2022
Novel intralayer hybrid composites (IHC) based on a commercial polylactic acid (PLA) matrix reinforced with a hybrid plain-woven fabric, composed of PLA filaments and sisal fibers, were obtained by film stacking followed by compression molding.
Eliana M. Agaliotis   +2 more
doaj   +1 more source

Performance of alkaline activated slag at high temperatures

open access: yesMateriales de Construccion, 2004
This paper presents an investigation into the performance of alkali-activated slag (AAS) mortar exposed to elevated temperatures. Sodium silicate, sodium hydroxide and a mix (waterglass) with a modulus (SiO2/Na20) of 1.5 were used as activators.
R. Mejía de Gutiérrez   +2 more
doaj   +1 more source

Carbonation of hybrid concrete with high blast furnace slag content and its impact on structural steel corrosion

open access: yesMateriales de Construccion, 2019
The aim of this research was to study the carbonation resistance of a blast furnace slag concrete (80% GBFS/20%OPC), with and without alkaline activation, and its influence on the corrosion of structural reinforcement.
D. E. Angulo-Ramirez   +4 more
doaj   +1 more source

Analysis of thermal process of pozzolan production

open access: yesMateriales de Construccion, 2004
The objective of this study was evaluated the effect of heat treatment parameters on the pozzolanic activity of natural kaolin clays. The experimental design included three factors: kaolin type, temperature and time.
R. Mejía De Gutiérrez   +2 more
doaj   +1 more source

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