干旱区生态环境知识资源中心(Arid): Study of the acoustical and thermo-mechanical properties of dune and river sand concretes containing recycled plastic aggregates

Arid

DOI	10.1016/j.conbuildmat.2020.119447
	Study of the acoustical and thermo-mechanical properties of dune and river sand concretes containing recycled plastic aggregates
	Boucedra, Aissa; Bederina, Madani; Ghernouti, Youcef
通讯作者	Bederina, M
来源期刊	CONSTRUCTION AND BUILDING MATERIALS
ISSN	0950-0618
EISSN	1879-0526
出版年	2020
卷号	256
英文摘要	The main objective of this work is the development of a new sand concrete whose aggregates consist only of river (0/4 mm) or dune (0/63 mm) sand and recycled plastic aggregates (0/3.15 mm). The work has both ecological and economical interest, without forgetting the technological interest which can certain materials provide. Indeed, what is new in our case is the addition of plastic aggregates to sand concrete as well as the study of the acoustic properties of this material. Different compositions have been studied by replacing (in volume) the mineral sand with plastic aggregates. The envisaged proportions are: 0%, 25%, 50% and 75%. The work focused mainly on the study of the effect of the addition of plastic aggregates on the properties of the river sand concrete and dune sand concrete, such as the thermo-mechanical properties and microstructure, with particular emphasis on studying the acoustic properties. The results obtained showed that, although the compressive strength of the studied composites is slightly reduced, their qualities in thermal insulation and acoustics absorption are significantly improved. For substitutions of up 75%, the sound absorption coefficient and the noise reduction coefficient (NRCs) ranged between 0.15 and 0.6 and between 0.28 and 0.39 respectively. Based on the obtained results, the final product is a lightweight concrete which can be classified, according to ISO 11654, into the sound absorption classes D and E. It is able to integrate among the new building materials and to contribute to sustainable development, particularly in local construction (arid regions). In conclusion, the recycled plastic waste and the dune sand can be a suitable alternative to the classic building materials. (C) 2020 Elsevier Ltd. All rights reserved.
英文关键词	Sand concrete Dune sand River sand Plastic aggregates Limestone filler Acoustic properties Thermo-mechanical properties Microstructure
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000540841400051
WOS关键词	MECHANICAL-PROPERTIES ; WASTE PET ; RUBBER ; SOUND ; PROPAGATION ; PROPORTION ; PRODUCTS ; FIBERS ; FILLER ; REUSE
WOS类目	Construction & Building Technology ; Engineering, Civil ; Materials Science, Multidisciplinary
WOS研究方向	Construction & Building Technology ; Engineering ; Materials Science
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324777
作者单位	[Boucedra, Aissa; Bederina, Madani] Univ Amar Telidji, Civil Engn Dept, Lab SREML, Laghouat, Algeria; [Ghernouti, Youcef] Univ MHamed Bougara Boumerdes, Res Unit Mat Proc & Environm, Boumerdes, Algeria
推荐引用方式 GB/T 7714	Boucedra, Aissa,Bederina, Madani,Ghernouti, Youcef. Study of the acoustical and thermo-mechanical properties of dune and river sand concretes containing recycled plastic aggregates[J],2020,256.
APA	Boucedra, Aissa,Bederina, Madani,&Ghernouti, Youcef.(2020).Study of the acoustical and thermo-mechanical properties of dune and river sand concretes containing recycled plastic aggregates.CONSTRUCTION AND BUILDING MATERIALS,256.
MLA	Boucedra, Aissa,et al."Study of the acoustical and thermo-mechanical properties of dune and river sand concretes containing recycled plastic aggregates".CONSTRUCTION AND BUILDING MATERIALS 256(2020).