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- W2378137029 abstract "Prevention of bedrock concrete cracking can improve the durability and operation safety of hydraulic structures.In this work,the cracking mechanism and restrained strain of rubber aggregate motar were studied through an experiment of restrained loop with resistance strain gauges,scanning electron microscrope and mercury porosimeter.The strain gauges were buried into bedrock concrete for measurement of restrained strain of rubber aggregate concrete.The results reveal that the rubber aggregate material under stressing causes a change in the shape of pores in the cement paste matrix and part of its stress is released.In the condition of ordinary motar cracking,this material develops curing strain and larger restrained strain,so the concrete does not crack.At the ages of 45d and 90d,the restrained strain in ordinary bedrock concrete is reduced quickly and its cracks start developing.Thus,rubber aggregate can improve the performances of bedrock concrete against cracking.This study provides an effective technical measure for prevention of bedrock concrete cracking." @default.
- W2378137029 created "2016-06-24" @default.
- W2378137029 creator A5003285069 @default.
- W2378137029 date "2013-01-01" @default.
- W2378137029 modified "2023-09-23" @default.
- W2378137029 title "Experiment on crack strain of rubber aggregate concrete restrained by bedrock" @default.
- W2378137029 hasPublicationYear "2013" @default.
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