Particle Size Effect of Oyster Shell on Mortar: Experimental Investigation and Modeling

In order to solve the problem of lack of natural river sand, crushed waste oyster shells (WOS) were used to replace river sand. By replacing 20% river sand, WOS mortar with different particle sizes of WOS were made for the experiment. Through experimental observation, the initial slump and slump flo...

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Autores principales:	Yingdi Liao, Hongyi Shi, Shimin Zhang, Bo Da, Da Chen
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	waste oyster shell mortar particle size compressive strength flexural strength static elastic modulus Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/dc2b2345bd0c41ae8ddbacbcac836552
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spelling	oai:doaj.org-article:dc2b2345bd0c41ae8ddbacbcac8365522021-11-25T18:13:49ZParticle Size Effect of Oyster Shell on Mortar: Experimental Investigation and Modeling10.3390/ma142268131996-1944https://doaj.org/article/dc2b2345bd0c41ae8ddbacbcac8365522021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/6813https://doaj.org/toc/1996-1944In order to solve the problem of lack of natural river sand, crushed waste oyster shells (WOS) were used to replace river sand. By replacing 20% river sand, WOS mortar with different particle sizes of WOS were made for the experiment. Through experimental observation, the initial slump and slump flow loss rate were studied. The effects of different particle sizes and curing times on the compressive strength, flexural strength, static elastic modulus, and dry shrinkage of WOS mortar were analyzed. The relationship formulas between the compressive strength, flexural strength, particle size, and curing age were proposed. The results showed that the setting time and slump flow decreased with a decrease in the particle size of WOS. It was also found that the mortar with fine crushed WOS had high compressive strength, flexural strength, and static elastic modulus at both early and long-term curing age. A formula was proposed to describe the development of the compressive strength with the particle size of WOS and curing time, and the relations among these mechanical properties were discussed. Furthermore, drying shrinkage increased when WOS was used and could not satisfy the standard requirement of 0.075%. In contrast, the addition of fine WOS and double-dose sulfonated naphthalene-formaldehyde superplasticizer (SNF SP) reduced the shrinkage rate of the mortar by 8.35% and provided better workability and mechanical properties for mortar.Yingdi LiaoHongyi ShiShimin ZhangBo DaDa ChenMDPI AGarticlewaste oyster shellmortarparticle sizecompressive strengthflexural strengthstatic elastic modulusTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6813, p 6813 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	waste oyster shell mortar particle size compressive strength flexural strength static elastic modulus Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	waste oyster shell mortar particle size compressive strength flexural strength static elastic modulus Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Yingdi Liao Hongyi Shi Shimin Zhang Bo Da Da Chen Particle Size Effect of Oyster Shell on Mortar: Experimental Investigation and Modeling
description	In order to solve the problem of lack of natural river sand, crushed waste oyster shells (WOS) were used to replace river sand. By replacing 20% river sand, WOS mortar with different particle sizes of WOS were made for the experiment. Through experimental observation, the initial slump and slump flow loss rate were studied. The effects of different particle sizes and curing times on the compressive strength, flexural strength, static elastic modulus, and dry shrinkage of WOS mortar were analyzed. The relationship formulas between the compressive strength, flexural strength, particle size, and curing age were proposed. The results showed that the setting time and slump flow decreased with a decrease in the particle size of WOS. It was also found that the mortar with fine crushed WOS had high compressive strength, flexural strength, and static elastic modulus at both early and long-term curing age. A formula was proposed to describe the development of the compressive strength with the particle size of WOS and curing time, and the relations among these mechanical properties were discussed. Furthermore, drying shrinkage increased when WOS was used and could not satisfy the standard requirement of 0.075%. In contrast, the addition of fine WOS and double-dose sulfonated naphthalene-formaldehyde superplasticizer (SNF SP) reduced the shrinkage rate of the mortar by 8.35% and provided better workability and mechanical properties for mortar.
format	article
author	Yingdi Liao Hongyi Shi Shimin Zhang Bo Da Da Chen
author_facet	Yingdi Liao Hongyi Shi Shimin Zhang Bo Da Da Chen
author_sort	Yingdi Liao
title	Particle Size Effect of Oyster Shell on Mortar: Experimental Investigation and Modeling
title_short	Particle Size Effect of Oyster Shell on Mortar: Experimental Investigation and Modeling
title_full	Particle Size Effect of Oyster Shell on Mortar: Experimental Investigation and Modeling
title_fullStr	Particle Size Effect of Oyster Shell on Mortar: Experimental Investigation and Modeling
title_full_unstemmed	Particle Size Effect of Oyster Shell on Mortar: Experimental Investigation and Modeling
title_sort	particle size effect of oyster shell on mortar: experimental investigation and modeling
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/dc2b2345bd0c41ae8ddbacbcac836552
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Particle Size Effect of Oyster Shell on Mortar: Experimental Investigation and Modeling

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