Influence of Rubber Powder Modification Methods on the Mechanical and Durability Properties of Rubberized Magnesium Oxychloride Cement

In the present study, three modification methods, including water washing, sodium hydroxide (NaOH), and styrene–acrylic emulsion, were used to modify waste rubber powders. The influence of rubber powders on the mechanical properties and frost resistance of magnesium oxychloride cement was examined,...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Dongqing Zhong, Shuguang Wang, Yu Gao, Luming Wang, Yanbo Li, Jiaqing Wang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	rubber powder magnesium oxychloride cement surface modification sodium hydroxide styrene–acrylic emulsion Crystallography QD901-999
Acceso en línea:	https://doaj.org/article/d205385d18f5448c9f3fd02f3040074a
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:d205385d18f5448c9f3fd02f3040074a
record_format	dspace
spelling	oai:doaj.org-article:d205385d18f5448c9f3fd02f3040074a2021-11-25T17:18:17ZInfluence of Rubber Powder Modification Methods on the Mechanical and Durability Properties of Rubberized Magnesium Oxychloride Cement10.3390/cryst111113232073-4352https://doaj.org/article/d205385d18f5448c9f3fd02f3040074a2021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4352/11/11/1323https://doaj.org/toc/2073-4352In the present study, three modification methods, including water washing, sodium hydroxide (NaOH), and styrene–acrylic emulsion, were used to modify waste rubber powders. The influence of rubber powders on the mechanical properties and frost resistance of magnesium oxychloride cement was examined, and the different modification mechanisms were also analyzed. Based on the analysis of hydrophilic properties after modification, styrene–acrylic emulsion achieved the best modification effect, while water washing produced the least modification effect; regarding mechanical properties, magnesium oxychloride cement mixed with NaOH modified rubber powders achieved the best modification effect, in which the 28 d flexural strength and compressive strength increased by 41.2% and 59.6%, respectively. During the freeze-thaw cycles, the mass loss of specimens was reduced with an increase in the content of rubber powders. In addition, after 300 cycles, the relative dynamic modulus of elasticity of the blank sample was about 28.12%, while that of the magnesium oxychloride cement mixed with NaOH modified rubber powders was approximately 42.38%. In general, the properties of the modified rubber powder–magnesium oxychloride cement composite material can meet the requirements for engineering materials, which provides a theoretical basis and technical support for the application of rubberized magnesium oxychloride cement.Dongqing ZhongShuguang WangYu GaoLuming WangYanbo LiJiaqing WangMDPI AGarticlerubber powdermagnesium oxychloride cementsurface modificationsodium hydroxidestyrene–acrylic emulsionCrystallographyQD901-999ENCrystals, Vol 11, Iss 1323, p 1323 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	rubber powder magnesium oxychloride cement surface modification sodium hydroxide styrene–acrylic emulsion Crystallography QD901-999
spellingShingle	rubber powder magnesium oxychloride cement surface modification sodium hydroxide styrene–acrylic emulsion Crystallography QD901-999 Dongqing Zhong Shuguang Wang Yu Gao Luming Wang Yanbo Li Jiaqing Wang Influence of Rubber Powder Modification Methods on the Mechanical and Durability Properties of Rubberized Magnesium Oxychloride Cement
description	In the present study, three modification methods, including water washing, sodium hydroxide (NaOH), and styrene–acrylic emulsion, were used to modify waste rubber powders. The influence of rubber powders on the mechanical properties and frost resistance of magnesium oxychloride cement was examined, and the different modification mechanisms were also analyzed. Based on the analysis of hydrophilic properties after modification, styrene–acrylic emulsion achieved the best modification effect, while water washing produced the least modification effect; regarding mechanical properties, magnesium oxychloride cement mixed with NaOH modified rubber powders achieved the best modification effect, in which the 28 d flexural strength and compressive strength increased by 41.2% and 59.6%, respectively. During the freeze-thaw cycles, the mass loss of specimens was reduced with an increase in the content of rubber powders. In addition, after 300 cycles, the relative dynamic modulus of elasticity of the blank sample was about 28.12%, while that of the magnesium oxychloride cement mixed with NaOH modified rubber powders was approximately 42.38%. In general, the properties of the modified rubber powder–magnesium oxychloride cement composite material can meet the requirements for engineering materials, which provides a theoretical basis and technical support for the application of rubberized magnesium oxychloride cement.
format	article
author	Dongqing Zhong Shuguang Wang Yu Gao Luming Wang Yanbo Li Jiaqing Wang
author_facet	Dongqing Zhong Shuguang Wang Yu Gao Luming Wang Yanbo Li Jiaqing Wang
author_sort	Dongqing Zhong
title	Influence of Rubber Powder Modification Methods on the Mechanical and Durability Properties of Rubberized Magnesium Oxychloride Cement
title_short	Influence of Rubber Powder Modification Methods on the Mechanical and Durability Properties of Rubberized Magnesium Oxychloride Cement
title_full	Influence of Rubber Powder Modification Methods on the Mechanical and Durability Properties of Rubberized Magnesium Oxychloride Cement
title_fullStr	Influence of Rubber Powder Modification Methods on the Mechanical and Durability Properties of Rubberized Magnesium Oxychloride Cement
title_full_unstemmed	Influence of Rubber Powder Modification Methods on the Mechanical and Durability Properties of Rubberized Magnesium Oxychloride Cement
title_sort	influence of rubber powder modification methods on the mechanical and durability properties of rubberized magnesium oxychloride cement
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d205385d18f5448c9f3fd02f3040074a
work_keys_str_mv	AT dongqingzhong influenceofrubberpowdermodificationmethodsonthemechanicalanddurabilitypropertiesofrubberizedmagnesiumoxychloridecement AT shuguangwang influenceofrubberpowdermodificationmethodsonthemechanicalanddurabilitypropertiesofrubberizedmagnesiumoxychloridecement AT yugao influenceofrubberpowdermodificationmethodsonthemechanicalanddurabilitypropertiesofrubberizedmagnesiumoxychloridecement AT lumingwang influenceofrubberpowdermodificationmethodsonthemechanicalanddurabilitypropertiesofrubberizedmagnesiumoxychloridecement AT yanboli influenceofrubberpowdermodificationmethodsonthemechanicalanddurabilitypropertiesofrubberizedmagnesiumoxychloridecement AT jiaqingwang influenceofrubberpowdermodificationmethodsonthemechanicalanddurabilitypropertiesofrubberizedmagnesiumoxychloridecement
_version_	1718412559663497216

Influence of Rubber Powder Modification Methods on the Mechanical and Durability Properties of Rubberized Magnesium Oxychloride Cement

Ejemplares similares