Dynamic Mechanical Behaviors of Desert Sand Concrete (DSC) after Different Temperatures

In the building domain, the non-renewable resource of sand is widely used to produce concrete and mortar. The sand production has been estimated to be more than 10 billion tons with a total of 1.2 billion tons used in concrete in the last decade, which causes the gradual reduction of available build...

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Main Authors:	Zhang, Minghu, Liu, Haifeng, Sun, Shuai, Chen, Xiaolong, Doh, Shu Ing
Format:	Article
Language:	English
Published:	MDPI 2019
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/26089/ http://umpir.ump.edu.my/id/eprint/26089/ http://umpir.ump.edu.my/id/eprint/26089/ http://umpir.ump.edu.my/id/eprint/26089/7/Dynamic%20Mechanical%20Behaviors%20of%20Desert%20Sand.pdf

id	ump-26089
recordtype	eprints
spelling	ump-260892019-10-16T08:20:31Z http://umpir.ump.edu.my/id/eprint/26089/ Dynamic Mechanical Behaviors of Desert Sand Concrete (DSC) after Different Temperatures Zhang, Minghu Liu, Haifeng Sun, Shuai Chen, Xiaolong Doh, Shu Ing TA Engineering (General). Civil engineering (General) In the building domain, the non-renewable resource of sand is widely used to produce concrete and mortar. The sand production has been estimated to be more than 10 billion tons with a total of 1.2 billion tons used in concrete in the last decade, which causes the gradual reduction of available building materials and impacts the environment. Since there are abundant desert sand resources in northwestern China, it would be viable to utilize desert sand as an alternative material for concrete production. In this study, an investigation of dynamic mechanical behaviors of desert sand concrete (DSC) was conducted. Various desert sand replacement ratios (0–100%) were used to replace the equivalent hill sand as fine aggregate. Experimental results showed that strain rate had a strong effect on the dynamic mechanical behaviors of DSC. The compressive strength (at room temperature) and flexural strength (after elevated temperature) increased with desert sand replacement ratio (DSRR) with the optimum replacement ratio of 40%, which was because the increase of DSRR improved the compaction of DSC. However, the effect of the low strength of desert sand was higher than that of the compaction when the DSSR exceeded 40%, so both strength values generally decreased with the increase of DSRR. Moreover, the dynamic constitutive model of DSC at room temperature was established on the basis of a nonlinear visco–elastic constitutive model (ZWT model), which can predict the stress–strain curves of DSC. MDPI 2019 Article PeerReviewed pdf en cc_by_4 http://umpir.ump.edu.my/id/eprint/26089/7/Dynamic%20Mechanical%20Behaviors%20of%20Desert%20Sand.pdf Zhang, Minghu and Liu, Haifeng and Sun, Shuai and Chen, Xiaolong and Doh, Shu Ing (2019) Dynamic Mechanical Behaviors of Desert Sand Concrete (DSC) after Different Temperatures. Applied Sciences, 9 (4151). pp. 1-19. ISSN 2076-3417 https://doi.org/10.3390/app9194151 https://doi.org/10.3390/app9194151
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Zhang, Minghu Liu, Haifeng Sun, Shuai Chen, Xiaolong Doh, Shu Ing Dynamic Mechanical Behaviors of Desert Sand Concrete (DSC) after Different Temperatures
description	In the building domain, the non-renewable resource of sand is widely used to produce concrete and mortar. The sand production has been estimated to be more than 10 billion tons with a total of 1.2 billion tons used in concrete in the last decade, which causes the gradual reduction of available building materials and impacts the environment. Since there are abundant desert sand resources in northwestern China, it would be viable to utilize desert sand as an alternative material for concrete production. In this study, an investigation of dynamic mechanical behaviors of desert sand concrete (DSC) was conducted. Various desert sand replacement ratios (0–100%) were used to replace the equivalent hill sand as fine aggregate. Experimental results showed that strain rate had a strong effect on the dynamic mechanical behaviors of DSC. The compressive strength (at room temperature) and flexural strength (after elevated temperature) increased with desert sand replacement ratio (DSRR) with the optimum replacement ratio of 40%, which was because the increase of DSRR improved the compaction of DSC. However, the effect of the low strength of desert sand was higher than that of the compaction when the DSSR exceeded 40%, so both strength values generally decreased with the increase of DSRR. Moreover, the dynamic constitutive model of DSC at room temperature was established on the basis of a nonlinear visco–elastic constitutive model (ZWT model), which can predict the stress–strain curves of DSC.
format	Article
author	Zhang, Minghu Liu, Haifeng Sun, Shuai Chen, Xiaolong Doh, Shu Ing
author_facet	Zhang, Minghu Liu, Haifeng Sun, Shuai Chen, Xiaolong Doh, Shu Ing
author_sort	Zhang, Minghu
title	Dynamic Mechanical Behaviors of Desert Sand Concrete (DSC) after Different Temperatures
title_short	Dynamic Mechanical Behaviors of Desert Sand Concrete (DSC) after Different Temperatures
title_full	Dynamic Mechanical Behaviors of Desert Sand Concrete (DSC) after Different Temperatures
title_fullStr	Dynamic Mechanical Behaviors of Desert Sand Concrete (DSC) after Different Temperatures
title_full_unstemmed	Dynamic Mechanical Behaviors of Desert Sand Concrete (DSC) after Different Temperatures
title_sort	dynamic mechanical behaviors of desert sand concrete (dsc) after different temperatures
publisher	MDPI
publishDate	2019
url	http://umpir.ump.edu.my/id/eprint/26089/ http://umpir.ump.edu.my/id/eprint/26089/ http://umpir.ump.edu.my/id/eprint/26089/ http://umpir.ump.edu.my/id/eprint/26089/7/Dynamic%20Mechanical%20Behaviors%20of%20Desert%20Sand.pdf
first_indexed	2023-09-18T22:40:25Z
last_indexed	2023-09-18T22:40:25Z
_version_	1777416877103906816

Dynamic Mechanical Behaviors of Desert Sand Concrete (DSC) after Different Temperatures

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