Effect of Highland Barley Straw Ash on the Bonding Strength of Magnesium Oxychloride Cement Mortar | |
其他题名 | 青稞秸秆灰对氯氧镁水泥砂浆粘结强度的影响 |
Shu, Xiuyuan1; Qiao, Hongxia1,2; Cao, Feng1,2; Cui, Lijun1 | |
2023-12 | |
发表期刊 | Cailiao Daobao/Materials Reports |
ISSN | 1005-023X |
卷号 | 37期号:23 |
摘要 | In order to study the process of using magnesium oxychloride cement mortar (MOCM) modified with highland barley straw ash (HBSA) as a protective layer for ordinary concrete (NC) to resist brine erosion in the western salt lake area, this work uses ordinary concrete as a bonding agent. For the base layer, the effects of factors such as incorporating HBSA into MOCM, applying interface agents on the concrete base layer, and different MOCM thicknesses on its bonding strength were studied. The influence of various factors on the bond strength of MOCM was studied through bond pull⁃out tests, the optimal design parameters were determined, and the damage and deterioration rules of the bond strength of HBSA⁃modified MOCM under salt brine erosion environment were further analyzed. The phase composition, functional group structure and micromorphological characteristics of MOCM were analyzed by microscopic testing technology, and the mechanism of the influence of HBSA on the bonding properties of MOCM was revealed. The results show that the MOCM with a thickness of 18 mm, doped with HBSA and coated with an interfacial agent has the highest bond strength and the strongest resistance to salt brine erosion. There are more active SiO2 in HBSA, which can undergo secondary hydration reaction with the hydration product of MOCM to generate hydrated magnesium silicate (M⁃S⁃H) gel, which fills the internal pores of MOCM, enhances compactness and improves bond strength. © 2023 Cailiao Daobaoshe/ Materials Review. All rights reserved. |
关键词 | Bond strength (materials) Calcium silicate Cements Concretes Deterioration Hydration Magnesium compounds Mortar Silica Silicates Silicon Straw Structure (composition) Active mixed material Barley straws Bonding property Cement mortars Highland barley straw ash Influence mechanism Magnesium oxychloride cement Magnesium oxychloride cement mortar Micro-structures Mixed materials Straw ashes |
DOI | 10.11896/cldb.22040311 |
收录类别 | EI |
语种 | 中文 |
出版者 | Cailiao Daobaoshe/ Materials Review |
EI入藏号 | 20235215277033 |
EI主题词 | Erosion |
EI分类号 | 412 Concrete ; 412.1 Cement ; 414.3 Mortar (Before 1993, use code 412) ; 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals ; 804 Chemical Products Generally ; 821.5 Agricultural Wastes ; 951 Materials Science |
原始文献类型 | Journal article (JA) |
引用统计 | 无
|
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/169917 |
专题 | 土木工程学院 |
通讯作者 | Qiao, Hongxia |
作者单位 | 1.School of Civil Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.School of Civil and Tansportation Engineering, Qinghai Minzu University, Xining; 810000, China |
第一作者单位 | 土木工程学院 |
通讯作者单位 | 土木工程学院 |
第一作者的第一单位 | 土木工程学院 |
推荐引用方式 GB/T 7714 | Shu, Xiuyuan,Qiao, Hongxia,Cao, Feng,et al. Effect of Highland Barley Straw Ash on the Bonding Strength of Magnesium Oxychloride Cement Mortar[J]. Cailiao Daobao/Materials Reports,2023,37(23). |
APA | Shu, Xiuyuan,Qiao, Hongxia,Cao, Feng,&Cui, Lijun.(2023).Effect of Highland Barley Straw Ash on the Bonding Strength of Magnesium Oxychloride Cement Mortar.Cailiao Daobao/Materials Reports,37(23). |
MLA | Shu, Xiuyuan,et al."Effect of Highland Barley Straw Ash on the Bonding Strength of Magnesium Oxychloride Cement Mortar".Cailiao Daobao/Materials Reports 37.23(2023). |
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