期刊论文

Experimental research on stress-strain full curves of waste glass powder concrete under uniaxial compression

中文

东南大学学报(自然科学版)

1001-0505

2020

50

2

222-230

10.3969/j.issn.1001-0505.2020.02.003

51478128:国家自然科学基金 51778158:国家自然科学基金 2017-32:广东省水利科技创新项目 2018GDJC-D08:广州大学研究生创新能力培养资助项目

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为研究废玻璃粉混凝土单轴受压作用下的全过程受力特征,对C30与C50两类强度等级,0%、10%、15%、20%、25%、30%六种取代率下的棱柱体试件进行单轴受压应力-应变全曲线试验.通过试验分析了应力-应变全过程曲线变化趋势,对比研究了比例极限、峰值应力、延性系数等性能指标,并采用分段式本构关系对废玻璃粉混凝土应力-应变全曲线进行了研究.结果表明:废玻璃粉混凝土应力-应变全曲线形状与普通混凝土相似,随着取代率的增加,上升段斜率逐渐变小,下降段则趋于平缓,各类取代率下均值曲线的标准差先增大后减小,直至保持不变;与普通混凝土相比,废玻璃粉混凝土的比例极限相对较小,峰值应变则较大,延性较好的...

To study the whole process mechanical characteristics of waste glass powder concrete under uniaxial compression, the stress-strain full curve tests of prismatic specimens with six substitution rates of 0%, 10%, 15%, 20%, 25%, 30% and two strength grades of C30 and C50 were carried out under uniaxial compression. The trend of the stress-strain curve during the whole process was analyzed and the performance indexes such as the proportional limit, the peak stress and the ductility coefficient were studied. The stress-strain full curve of waste gla...