C35、C50自密实混凝土收缩性能试验研究

Rasearching shrinkage performance of C35 and C50 self-compacting concrete

采用浙江大学建筑材料试验室自行研制的早期收缩测量装置,进行了C35、C50自密实混凝土的收缩试验。试验于混凝土浇筑后初凝开始,在标准试验室环境下,采用密封和敞开两种养护模式,并且与工程处提供的普通混凝土进行了对比试验。分析了自密实混凝土的收缩规律及影响其收缩性能的因素。为自密实混凝土的发展和工程实际应用提供了参考,也为进一步研究自密实混凝土的收缩性能提供试验方法和理论基础。

With initial shrinkage measure equipment developed by Zhejiang University building material lab, C35, C50 self-compacting concrete shrinkage were tested.The test was done at the two maintain models of closed and opened under the standardizing laboratory condition.We did the analysis about shrinkage laws and impact factors of shrinkage performance.The test and analysis can be the reference of engineering application and provide new test method to research self-compacting concrete shrinkage performance in future.