A novel water-swelling grouting material formulation and its performance for water rushing in karst strata

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成果类型：

期刊论文

作者：

Zhang, Cong;Zhou, Jinxin;Zheng, Xiangcou;Yang, Junsheng;Zhan, Shuangqiao;...

通讯作者：

Zheng, XC

作者机构：

[Zhang, Cong; Yang, Lei; Zhou, Jinxin] Cent South Univ Forestry & Technol, Sch Civil Engn, Changsha 410004, Hunan, Peoples R China.

[Zhang, Cong] China Railway 5 Engn Grp Co Ltd, Changsha 410000, Hunan, Peoples R China.

[Zheng, XC; Yang, Junsheng; Zheng, Xiangcou] Cent South Univ, Sch Civil Engn, Changsha 410075, Hunan, Peoples R China.

[Yang, Junsheng] Cent South Univ, MOE Key Lab Engn Struct Heavy Haul Railway, Changsha 410075, Hunan, Peoples R China.

[Zhan, Shuangqiao] Hunan Water Resources & Hydropower Survey Design P, Changsha 410007, Hunan, Peoples R China.

通讯机构：

[Zheng, XC ] C

Cent South Univ, Sch Civil Engn, Changsha 410075, Hunan, Peoples R China.

语种：

英文

关键词：

Karst strata;Water rushing;Water-swelling grouting material;Matrix analysis model;Optimal formulations

期刊：

Construction and Building Materials

ISSN：

0950-0618

年：

2024

卷：

416

DOI：

10.1016/j.conbuildmat.2024.135245

基金类别：

National Natural Science Foundation of China [52108389, 52308425, 52378426]; China Postdoctoral Science Foundation [YJ20220219, 2023TQ0382]; Distinguished Young Scholars of Changsha city Bureau [kq2209017]; Science and technology innovation Program of Hunan Province [2023RC3160]; Open Foundation of MOE Key Laboratory of Engineering Structures of Heavy Haul Railway (Central South University) [2022JZZ02]; Quanmutang Reservoir Engineering Sci- ence and Technology Innovation Project [W-2022-72]

机构署名：

本校为第一机构

院系归属：

土木工程学院

摘要：

Conventional grouting materials often exhibit shortcomings when faced with water rushing in karst strata, such as easy dispersion, poor stability, and uncontrollable diffusion. This study introduces an organic-inorganic hybrid water-swelling material for grouting based on excellent synergistic interactions among Polymethylene Polyphenyl Isocyanate (PAPI), Nitrogen tetroxide (N204), Portland cement, and Triethylenediamine (A33) using a straightforward process. Meanwhile, optimal formulations for the WSGM are determined using a proposed matrix analysis model. Under specific conditions with an al...

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A novel water-swelling grouting material formulation and its performance for water rushing in karst strata

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