Mechanical properties of alkali-activated concrete containing crumb rubber particles

Substituting fine aggregate in alkali-activated concrete (AAC) with recycled rubber particles from waste tires helps reduce the excessive consumption of natural resources and the adverse environmental impacts of solid waste. This study investigates the feasibility of developing rubberized fly ash-sl...

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Autores principales:	Huailiang Wang, Yuhui Wu, Baoquan Cheng
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2022
Materias:	Crumb rubber Alkali-activated concrete Stress–strain curve Mechanical properties Fracture parameters Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/1edf629b3111467d97511ecf5d9d9115
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spelling	oai:doaj.org-article:1edf629b3111467d97511ecf5d9d91152021-11-26T04:29:45ZMechanical properties of alkali-activated concrete containing crumb rubber particles2214-509510.1016/j.cscm.2021.e00803https://doaj.org/article/1edf629b3111467d97511ecf5d9d91152022-06-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2214509521003181https://doaj.org/toc/2214-5095Substituting fine aggregate in alkali-activated concrete (AAC) with recycled rubber particles from waste tires helps reduce the excessive consumption of natural resources and the adverse environmental impacts of solid waste. This study investigates the feasibility of developing rubberized fly ash-slag-based AAC in the construction industry. Recycled rubber particles were used to partially replace fine aggregate in five volume ratios, ranging from 0% to 20%, to prepare AAC at ambient temperature, and their mechanical properties were measured through a set of experimental tests. The results show that the addition of rubber particles reduced the compressive strength, splitting tensile strength, and flexural strength of AAC by 5.2–34.5%, 7.2–46.1%, and 12.8–63.7%, respectively, while substantially improving its energy absorption capability by 31.5–53.3%. To balance the reduction in the strength of AAC with the improvement in its ductility, the recommended optimal volume ratio of rubber particles in it is 10–15%. A constitutive model of AAC containing crumb rubber is also proposed based on the experimental data. The findings of this study provide a reference for the use of crumb rubber in AAC, and can contribute to a circular economy in the construction industry.Huailiang WangYuhui WuBaoquan ChengElsevierarticleCrumb rubberAlkali-activated concreteStress–strain curveMechanical propertiesFracture parametersMaterials of engineering and construction. Mechanics of materialsTA401-492ENCase Studies in Construction Materials, Vol 16, Iss , Pp e00803- (2022)
institution	DOAJ
collection	DOAJ
language	EN
topic	Crumb rubber Alkali-activated concrete Stress–strain curve Mechanical properties Fracture parameters Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	Crumb rubber Alkali-activated concrete Stress–strain curve Mechanical properties Fracture parameters Materials of engineering and construction. Mechanics of materials TA401-492 Huailiang Wang Yuhui Wu Baoquan Cheng Mechanical properties of alkali-activated concrete containing crumb rubber particles
description	Substituting fine aggregate in alkali-activated concrete (AAC) with recycled rubber particles from waste tires helps reduce the excessive consumption of natural resources and the adverse environmental impacts of solid waste. This study investigates the feasibility of developing rubberized fly ash-slag-based AAC in the construction industry. Recycled rubber particles were used to partially replace fine aggregate in five volume ratios, ranging from 0% to 20%, to prepare AAC at ambient temperature, and their mechanical properties were measured through a set of experimental tests. The results show that the addition of rubber particles reduced the compressive strength, splitting tensile strength, and flexural strength of AAC by 5.2–34.5%, 7.2–46.1%, and 12.8–63.7%, respectively, while substantially improving its energy absorption capability by 31.5–53.3%. To balance the reduction in the strength of AAC with the improvement in its ductility, the recommended optimal volume ratio of rubber particles in it is 10–15%. A constitutive model of AAC containing crumb rubber is also proposed based on the experimental data. The findings of this study provide a reference for the use of crumb rubber in AAC, and can contribute to a circular economy in the construction industry.
format	article
author	Huailiang Wang Yuhui Wu Baoquan Cheng
author_facet	Huailiang Wang Yuhui Wu Baoquan Cheng
author_sort	Huailiang Wang
title	Mechanical properties of alkali-activated concrete containing crumb rubber particles
title_short	Mechanical properties of alkali-activated concrete containing crumb rubber particles
title_full	Mechanical properties of alkali-activated concrete containing crumb rubber particles
title_fullStr	Mechanical properties of alkali-activated concrete containing crumb rubber particles
title_full_unstemmed	Mechanical properties of alkali-activated concrete containing crumb rubber particles
title_sort	mechanical properties of alkali-activated concrete containing crumb rubber particles
publisher	Elsevier
publishDate	2022
url	https://doaj.org/article/1edf629b3111467d97511ecf5d9d9115
work_keys_str_mv	AT huailiangwang mechanicalpropertiesofalkaliactivatedconcretecontainingcrumbrubberparticles AT yuhuiwu mechanicalpropertiesofalkaliactivatedconcretecontainingcrumbrubberparticles AT baoquancheng mechanicalpropertiesofalkaliactivatedconcretecontainingcrumbrubberparticles
_version_	1718409826873114624

Mechanical properties of alkali-activated concrete containing crumb rubber particles

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