摘要
为研究取代率对再生陶瓷粗骨料混凝土抗压强度的影响,制作了10组不同取代率的再生陶瓷粗骨料混凝土试块及1组普通混凝土对比试块,分别养护7 d和28 d后做单轴抗压试验。对比分析了不同取代率试块破坏的过程与现象,研究了不同取代率对混凝土抗压强度及峰值应变的影响,并提出了再生陶瓷粗骨料混凝土7 d和28 d抗压强度的计算方法。研究结果表明:再生陶瓷粗骨料混凝土抗压强度随着取代率的增加而降低,峰值应变随取代率的增加先减小后增大,取代率为40%时,混凝土的峰值应变最小。
In order to study the effect of replacement ratios on compressive strength of recycled ceramic coarse aggregate concrete.10 groups of recycled ceramic coarse aggregate concrete test blocks with different replacement ratios and 1 group of ordinary concrete comparison test blocks were made.Uniaxial compression tests were performed on the test blocks after curing for 7 d and 28 d respectively.The failure process and phenomena of the specimens with different replacement ratios were compared and analyzed.The effects of different replacement ratios on compressive strength and peak strain of concrete were studied.The calculation method of 7 d and 28 d compressive strength of recycled ceramic coarse aggregate concrete was put forward.The research results show that the compressive strength of recycled ceramic coarse aggregate concrete decreases with the increase of the replacement ratio,and the peak strain first decreases and then increases with the increase of the replacement ratio.When the replacement ratio is 40%,the peak strain is the smallest.
作者
黄宏
曾建涛
王伊
Huang Hong;Zeng Jiantao;Wang Yi(School of Civil Engineering and Architecture,East China Jiaotong University,Nanchang 330013,China;National Experimental Teaching Demonstration Center of Civil Engineering,East China Jiaotong University,Nanchang 330013,China)
出处
《华东交通大学学报》
2022年第2期27-34,共8页
Journal of East China Jiaotong University
基金
国家自然科学基金项目(51868020)
江西省自然科学基金重点项目(20192ACBL21002)。
关键词
再生陶瓷粗骨料
取代率
抗压强度
峰值应变
recycled ceramic coarse aggregate
replacement ratio
compressive strength
peak strain
