干旱区生态环境知识资源中心(Arid): An experimental study on the optimal compositions of ordinary concrete based on corrected dune sand-Case of granular range of 25 mm

Arid

DOI	10.1016/j.cscm.2021.e00521
	An experimental study on the optimal compositions of ordinary concrete based on corrected dune sand-Case of granular range of 25 mm
	Moulay-Ali, Abderrahmane; Abdeldjalil, Mhammed; Khelafi, Hamid
通讯作者	Moulay-Ali, A (corresponding author), ST Mat Civil Engn Univ Ahmed Draia, Lab LDDI & IT, Adrar, Algeria.
来源期刊	CASE STUDIES IN CONSTRUCTION MATERIALS
ISSN	2214-5095
出版年	2021
卷号	14
英文摘要	Our study aims to solve the fundamental problem of concrete formulation in arid areas. The obtained results through the use of dune sand showed that most of previous studies in this domain did not meet the requirements- in terms of mechanical strength of concrete- and that is due to the sand granularity. The latter was mainly due to the absence of coarse sand grains. For this purpose, three (03) siliceous dune sand classes were used, with a maximum grain size of 2.00 mm and a modulus of fineness ranging from 1.55 to 1.74. These dune sands were corrected by two classes of Koussane siliceous-limestone crushed sands of 0/4 mm, with a fineness modulusof 3.02and3.4. It should be noted that the rates of correction by quarry sands are 20 %, 40 %, 60 %, 80 % including dune and crushed sands without correction (0 %, 100 %). A large experimental plan of 276 concrete tests was adopted on 15 cm cubic specimens. It included most of the expected possibilities using coarse aggregates with maximum dimension of 25 mm. The test results provided the mechanical strength obtained for the concrete that contains sand-dunes corrected at a rate of 60 %, 40 % and 20 %. The value of the mechanical strength in compression was 48 MPa, which was higher than all the values obtained using dune sand or crushed sand without correction. That said, the use of corrected sand was- financially speaking- cost efficient. (C) 2021 The Author(s). Published by Elsevier Ltd.
英文关键词	Arid zone Correction Dune sand Granularity Strength Concrete
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000656850100098
WOS关键词	PERFORMANCE ; STRENGTH ; DESERT
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/2XILL650/349789
作者单位	[Moulay-Ali, Abderrahmane; Abdeldjalil, Mhammed] ST Mat Civil Engn Univ Ahmed Draia, Lab LDDI & IT, Adrar, Algeria; [Khelafi, Hamid] Lab LMST USTO, Adrar, Algeria; [Khelafi, Hamid] ST Mat Civil Engn Univ Ahmed Drafa, Adrar, Algeria
推荐引用方式 GB/T 7714	Moulay-Ali, Abderrahmane,Abdeldjalil, Mhammed,Khelafi, Hamid. An experimental study on the optimal compositions of ordinary concrete based on corrected dune sand-Case of granular range of 25 mm[J],2021,14.
APA	Moulay-Ali, Abderrahmane,Abdeldjalil, Mhammed,&Khelafi, Hamid.(2021).An experimental study on the optimal compositions of ordinary concrete based on corrected dune sand-Case of granular range of 25 mm.CASE STUDIES IN CONSTRUCTION MATERIALS,14.
MLA	Moulay-Ali, Abderrahmane,et al."An experimental study on the optimal compositions of ordinary concrete based on corrected dune sand-Case of granular range of 25 mm".CASE STUDIES IN CONSTRUCTION MATERIALS 14(2021).