冻融循环后陶粒混凝土砌块在典型加载方式下的变形和破坏特征试验研究

关键字：冻融,循环,后,陶粒,混凝土,砌块,在,典型,加载,

（徐州工程学院 土木工程学院，江苏 徐州  221000）

    摘要：经冻融循环试验后，控制不同的加载方式，分别进行普通单轴加载试验和慢速单轴加载试验。结果表明，经冻融循环后慢速单轴加载方式使得污泥陶粒混凝土砌块抗压强度降幅更大；慢速加载的破坏主要是剪切破坏，常规加载则为劈裂破坏起主导作用。

    关键词：冻融循环；陶粒混凝土砌块；力学性能；加载方式

    中图分类号：TU528.2         文献标识码：A         文章编号：1001-702X（2021）01-0103-04

 

Experimental study on deformation and failure characteristics of ceramsite concrete block under typical loading mode after freeze-thaw cycles

BI Xiaoxi，YU Yang，LI Yan，ZHANG Zhijun，LV Fangli

（College of Civil Engineering，Xuzhou Institute of Technology，Xuzhou 221000，China）

    Abstract：Through the freeze-thaw cycle，by controlling different loading methods，the ordinary uniaxial loading test and slow uniaxial loading were carried out respectively. It was found that the compressive strength of the sludge ceramsite concrete block was reduced more by the slow uniaxial loading mode after freeze-thaw service. The failure of slow loading is mainly shear failure. However，conventional loading plays a leading role in splitting failure.  

    Key words：freeze-thaw cycle，ceramsite concrete block，mechanics，loading methods