Synergistic mechanism of polycarboxylate superplasticizer and hydroxypropyl methyl cellulose on fiber dispersion and mechanical properties of PVA-fiber concrete: experimental and simulation studies

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作者信息关键词期刊信息基础信息归属信息摘要

成果类型：

期刊论文

作者：

Fan, Lin;Yu, Xin;Chen, Chen;He, Pingping

通讯作者：

Yu, X

作者机构：

[Fan, Lin] Hohai Univ, Coll Civil & Transportat Engn, Nanjing, Jiangsu, Peoples R China.

[Yu, Xin; Yu, X] Changsha Univ Sci & Technol, Hohai Univ, Coll Civil & Transportat Engn, Sch Traff & Transportat Engn, Nanjing, Jiangsu, Peoples R China.

[Chen, Chen] Hohai Univ, Coll Civil & Transportat Engn, Coll Water Conservancy & Hydropower Engn, Nanjing, Jiangsu, Peoples R China.

[He, Pingping] Changsha Univ Sci & Technol, Sch Traff & Transportat Engn, Changsha, Hunan, Peoples R China.

通讯机构：

[Yu, X ] C

Changsha Univ Sci & Technol, Hohai Univ, Coll Civil & Transportat Engn, Sch Traff & Transportat Engn, Nanjing, Jiangsu, Peoples R China.

语种：

英文

关键词：

Polyvinyl alcohol fiber reinforced concrete;analysis of the synergistic effects of PCEs and HPMC;performance testing and molecular dynamics simulation;characterization of mechanical properties and fiber dispersion characteristics;multi-site adsorption and competitive adsorption effects

期刊：

Journal of Sustainable Cement-Based Materials

ISSN：

2165-0373

年：

2025

卷：

期：

页码：

983-1004

DOI：

10.1080/21650373.2025.2487889

基金类别：

Postdoctoral Fellowship Program of CPSF [GZB20240190]; National Key Research and Development Program of China [2021YFB2601200]; Natural Science Foundation of Hunan Province, China [2024JJ6040]; National Natural Science Foundation of China [5240081463]

机构署名：

本校为其他机构

院系归属：

交通运输工程学院

摘要：

PCEs and HPMC are vital to PVA-FRC, where imbalance causes bleeding and viscosity issues, affecting fiber distribution and performance. This study investigates the synergistic mechanisms of PCEs and HPMC on fiber dispersion and mechanical properties through macroscopic experiments and microscopic simulations. Experimental results show that an increase in HPMC dosage or a decrease in PCE dosage reduces fiber uniformity. The mechanical properties of PVA-FRC are influenced by multiple factors, leading to complex non-linear trends. The best performance is achieved when PCE is 0.4% of cement mass a...

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Synergistic mechanism of polycarboxylate superplasticizer and hydroxypropyl methyl cellulose on fiber dispersion and mechanical properties of PVA-fiber concrete: experimental and simulation studies

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