Effects of Polycarboxylate Superplasticizer on Efflorescence of Cement‑Based Decorative Mortar

被引：0
|
作者：
Zhang G. [1 ,2 ,3 ]
Wang C. [1 ,2 ]
Wang Z. [4 ]
Wang B. [1 ,2 ]
Huang T. [4 ]
机构：
[1] Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, Shanghai
[2] School of Materials Science and Engineering, Tongji University, Shanghai
[3] Research Center of Intelligent Evaluation and Restoration Engineering Technology of Urban Pipe Network of Shanghai Water Bureau, Shanghai
[4] Beijing Building Materials Academy of Sciences Research, Beijing
来源：
Jianzhu Cailiao Xuebao/Journal of Building Materials | 2023年 / 26卷 / 01期
关键词：
capillary water absorption; decorative mortar; efflorescence; polycarboxylate superplasticizer; pore structure;
D O I：
10.3969/j.issn.1007-9629.2023.01.001
中图分类号：
学科分类号：
摘要：
The effect of polycarboxylate superplasticizer and its content on efflorescence of cement‑based decorative mortar was studied. The results show that polycarboxylate superplasticizer can significantly reduce the primary and secondary efflorescence areas of decorative mortar. When the polycarboxylate superplasticizer content is higher than 0.6%， basically no efflorescence occurs in the decorative mortar. After adding superplasticizer， the total porosity， number of surface pores， internal porosity， water absorption of gross pores and connected pores of the decorative mortar decrease， and the surface efflorescence of the decorative mortar is restrained. © 2023 Tongji University. All rights reserved.
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页码：1 / 6
页数：5
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