Study on properties of composite superfine cement-based waterproof plugging material and influence of polymer modification
WANG Weiwei
HAN Jianyong
ZHU Shihao
Abstract：In this paper,the optimal mix ratio of properties of composite superfine cement-based waterproof plugging material was determined through experimental research and comprehensive comparison of workability and mechanical performance.On this basis,different proportions of epoxy resin were mixed to carry out irrigation tests.The research shows that the optimal mix ratio of composite superfine cement-based materials was 10%of sulfoaluminate cement,65%ordinary Portland cement,5%of silica fume,10%of fly ash,10%of expansion agent,the water-binder ratio was set at 0.3,and the content of water reducer and defoaming a-gents was 0.4%and 0.2%,respectively.A modified composite ultrafine cement-based waterproof plugging material was prepared us-ing an epoxy resin content of 3%.The irrigability test showed that cracks with a width≥0.35 mm could be grouted.
Keywords：water-based epoxy resincomposite superfine cement baseplugging materialperformance study
Publication Date：2025-06-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 97-100 )