Influence test of pipeline grouting agent performance and research on optimization of ratio
In order to study the effect of polycarboxylate superplasticizer,microbead mineral admixture and water-binder ratio on the performance of pipeline grouting agent,the optimal mixing ratio was obtained.Based on the 2020 new version of the industry standard,it systematically studied the influence of three factors on the performance of grouting agent with the help of standard test method,orthogonal test design principle and Logit model optimization analysis method.value for further optimization design and verification.The research shows that the water-binder ratio has the most obvious effect on the fluidity of the pipeline grouting agent,the content of polycarboxylate superplasticizer is the second,and the content of microbeads is the least obvious.The optimal mixing ratio of the grouting agent after the optimization of the Logit model is water.The glue ratio is 0.28,the content of polycarboxylate superplasticizer is 0.38％,and the content of microbeads is 18.5％.The fluidity and mechanical properties are improved and improved,and the difference in compressive strength is reduced to below 6％.The research results enrich and supplement the optimal design theory of pipeline grouting,provide theoretical guidance and laboratory test basis for field engineering application,and have important engineering application significance.
grouting agentmixture ratioorthogonal testLogit modeldifference in compressive strength
万方数据
维普
