[1]孙啸,王相洋,杨专家,等.含硅藻土的水下不分散灌浆材料配合比设计[J].郑州大学学报(工学版),2026,47(4):33-41.[doi:10.13705/j.issn.1671-6833.2026.01.004]
 SUN Xiao,WANG Xiangyang,YANG Zhuanjia,et al.Mix Proportion Design of Underwater Non-dispersible Grouting Material Containing Diatomite[J].Journal of Zhengzhou University (Engineering Science),2026,47(4):33-41.[doi:10.13705/j.issn.1671-6833.2026.01.004]
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含硅藻土的水下不分散灌浆材料配合比设计()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
47
期数:
2026年4期
页码:
33-41
栏目:
出版日期:
2026-07-10

文章信息/Info

Title:
Mix Proportion Design of Underwater Non-dispersible Grouting Material Containing Diatomite
文章编号:
1671-6833(2026)04-0033-09
作者:
孙啸1, 王相洋1, 杨专家2, 张鑫玉1
1. 河海大学 水利水电学院,江苏 南京 210098;2. 延安水务(集团)延河供水有限责任公司,陕西 延安 716000
Author(s):
SUN Xiao1, WANG Xiangyang1, YANG Zhuanjia2, ZHANG Xinyu1
1. College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China; 2. Yan′an Water Affairs (Group) Yanhe Water Supply Company Limited, Yan′an 716000, China
关键词:
水下修补灌浆材料;  多孔材料;  抗分散性;  流动性
Keywords:
underwater repair grouting material;  porous material;  anti-washout performance;  flowability
分类号:
TV543+. 6TV431+. 9
DOI:
10.13705/j.issn.1671-6833.2026.01.004
文献标志码:
A
摘要:
针对混凝土坝体水下裂缝修补材料的分散性问题,设计了一种含硅藻土的水下不分散灌浆材料。 首先,通过压汞测试和单掺试验确定硅藻土的目数和掺量,并采用抗压强度和劈裂抗拉强度试验分析其对灌浆材料力学性能的影响;其次,采用截锥流动度法、目测法、pH 值法和质量损失法进一步研究羟丙基甲基纤维素絮凝剂( HPMC)和普通型 PCA®-Ⅰ型聚羧酸高性能减水剂对灌浆材料流动性和抗分散性影响;最后,基于正交试验方法,确定水下灌浆修复材料的具体配比。 结果表明:水灰比为 0. 50 时,硅藻土与浆液具有良好相容性,且加入 2% 掺量( 质量分数,下同)的 100 目硅藻土可以提高灌浆材料的抗压强度和劈裂抗拉强度;在此基础上添加 0. 6%掺量的 HPMC 可以提高浆液抗分散性,再加入 0. 10%掺量的减水剂可以改善其流动性。 所确定的水下灌浆材料的硅藻土目数为100 目、掺量为 2%,HPMC 掺量为 0. 6%,PCA®-Ⅰ型聚羧酸高性能减水剂掺量为 0. 10%。
Abstract:
Aiming at the dispersion problem of underwater crack repair materials for concrete dams, an underwater non-dispersible grouting material containing diatomite was designed. Firstly, the mesh number and content of diat-omitewere determined by mercury intrusion test and single mixing test, and the influence of diatomite on the me-chanicalproperties of grouting materials was analyzed by compressive strength and splitting tensile strength tests. Secondly, the effects of hydroxypropyl methyl cellulose flocculant (HPMC) and ordinary PCA®-typeⅠ polycarbox-ylicacid high performance water reducing agent on the flowability and anti-washout performance of grouting materi-alswere further studied by cone flowability method, visual observation method, pH value method, and plunge test. Finally, based on the orthogonal test method, the specific ratio of underwater grouting repair materials was deter-mined.The results showed that when the water-cement ratio was 0. 50, the diatomite had good compatibility with the slurry, and the addition of 2% ( mass fraction, the same below) 100 mesh diatomite could improve the com-pressivestrength and splitting tensile strength of the grouting material. On this basis, the addition of 0. 6% HPMC could improve the anti-washout performance of the slurry, and the addition of 0. 10% water reducing agent could improve its flowability. The diatomite mesh of underwater grouting material was determined to be 100 mesh, the content was 2%, the content of HPMC was 0. 6%, and the content of PCA®-typeⅠ polycarboxylic acid high per-formancewater reducing agent was 0. 10%.

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更新日期/Last Update: 2026-10-21