Properties of Concrete Prepared with Silane Coupling Agent-Impregnated Coral Aggregate and Coral Concrete

Silane coupling agent (SCA), a kind of organic solvent, was introduced to improve the performance of coral coarse aggregates and enhance the interfacial adhesion between the inorganic coral aggregate and the cement paste of coral concrete. The crushing indicator and water absorption of the coral agg...

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Autores principales:	Jinming Liu, Boyu Ju, Qing Yin, Wei Xie, Haiying Xiao, Shanliang Dong, Wenshu Yang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	silane coupling agent coral concrete surface modification 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/43bafc6495b54ac0a406af7394eca2fd
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spelling	oai:doaj.org-article:43bafc6495b54ac0a406af7394eca2fd2021-11-11T18:01:46ZProperties of Concrete Prepared with Silane Coupling Agent-Impregnated Coral Aggregate and Coral Concrete10.3390/ma142164541996-1944https://doaj.org/article/43bafc6495b54ac0a406af7394eca2fd2021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6454https://doaj.org/toc/1996-1944Silane coupling agent (SCA), a kind of organic solvent, was introduced to improve the performance of coral coarse aggregates and enhance the interfacial adhesion between the inorganic coral aggregate and the cement paste of coral concrete. The crushing indicator and water absorption of the coral aggregates over various dipping times were measured, and the slump, interface microhardness, and compressive strength of coral concrete tested. The microscopic appearances of the coral concrete before and after modification were analyzed based on SEM images. The experimental results indicate that SCA can effectively reduce the crushing indicator and water absorption of coral coarse aggregates, and the modification performance becomes better over time. SCA facilitates the generation of chemical forces between the coral aggregates and cement mortars, improves adhesion between the aggregates and mortars, augments the microhardness of the interface, and increases the compressive strength. According to the microscopic appearance of the treated and untreated coral aggregate interfaces, the aggregates and the mortars are in closer combination after modification.Jinming LiuBoyu JuQing YinWei XieHaiying XiaoShanliang DongWenshu YangMDPI AGarticlesilane coupling agentcoral concretesurface modificationTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6454, p 6454 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	silane coupling agent coral concrete surface modification 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	silane coupling agent coral concrete surface modification 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 Jinming Liu Boyu Ju Qing Yin Wei Xie Haiying Xiao Shanliang Dong Wenshu Yang Properties of Concrete Prepared with Silane Coupling Agent-Impregnated Coral Aggregate and Coral Concrete
description	Silane coupling agent (SCA), a kind of organic solvent, was introduced to improve the performance of coral coarse aggregates and enhance the interfacial adhesion between the inorganic coral aggregate and the cement paste of coral concrete. The crushing indicator and water absorption of the coral aggregates over various dipping times were measured, and the slump, interface microhardness, and compressive strength of coral concrete tested. The microscopic appearances of the coral concrete before and after modification were analyzed based on SEM images. The experimental results indicate that SCA can effectively reduce the crushing indicator and water absorption of coral coarse aggregates, and the modification performance becomes better over time. SCA facilitates the generation of chemical forces between the coral aggregates and cement mortars, improves adhesion between the aggregates and mortars, augments the microhardness of the interface, and increases the compressive strength. According to the microscopic appearance of the treated and untreated coral aggregate interfaces, the aggregates and the mortars are in closer combination after modification.
format	article
author	Jinming Liu Boyu Ju Qing Yin Wei Xie Haiying Xiao Shanliang Dong Wenshu Yang
author_facet	Jinming Liu Boyu Ju Qing Yin Wei Xie Haiying Xiao Shanliang Dong Wenshu Yang
author_sort	Jinming Liu
title	Properties of Concrete Prepared with Silane Coupling Agent-Impregnated Coral Aggregate and Coral Concrete
title_short	Properties of Concrete Prepared with Silane Coupling Agent-Impregnated Coral Aggregate and Coral Concrete
title_full	Properties of Concrete Prepared with Silane Coupling Agent-Impregnated Coral Aggregate and Coral Concrete
title_fullStr	Properties of Concrete Prepared with Silane Coupling Agent-Impregnated Coral Aggregate and Coral Concrete
title_full_unstemmed	Properties of Concrete Prepared with Silane Coupling Agent-Impregnated Coral Aggregate and Coral Concrete
title_sort	properties of concrete prepared with silane coupling agent-impregnated coral aggregate and coral concrete
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/43bafc6495b54ac0a406af7394eca2fd
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Properties of Concrete Prepared with Silane Coupling Agent-Impregnated Coral Aggregate and Coral Concrete

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