不同含水率蒸压轻质混凝土拉压性能试验研究  

Experimental Study on Tensile and Compressive Properties of Autoclaved Lightweight Concrete with Different Moisture Contents

作　　者：马芹永[1,2] 赵慧敏 袁璞[1,2] 王静峰[3] 王波[3] 沈万玉 MA Qinyong;ZHAO Huimin;YUAN Pu;WANG Jingfeng;WANG Bo;SHEN Wanyu(School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan Anhui 232001, China;Engineering Research Center of Underground Mine Construction of Ministry of Education, Anhui University of Science and Technology, Huainan Anhui 232001, China;School of Civil Hydraulic Engineering, Hefei University of Technology, Hefei Anhui 230009, China;Technology Center of Anhui Fuhuang Steel Structure Co., Ltd., Hefei Anhui 238076, China)

机构地区：[1]安徽理工大学土木建筑学院,安徽淮南232001 [2]安徽理工大学矿山地下工程教育部工程研究中心,安徽淮南232001 [3]合肥工业大学土木与水利工程学院,安徽合肥230009 [4]安徽富煌钢构股份有限公司技术中心,安徽合肥238076

出　　处：《安徽理工大学学报（自然科学版）》2022年第1期50-55,共6页Journal of Anhui University of Science and Technology:Natural Science

基　　金：安徽高校协同创新项目(GXXT-2019-005)。

摘　　要：为研究不同含水率蒸压轻质混凝土的拉压性能及含水率对其能量参数的影响,对蒸压轻质混凝土进行了不同含水率下的劈裂抗拉和单轴压缩试验。试验结果表明:蒸压轻质混凝土的峰值应力和弹性模量随含水率的升高逐渐降低,而峰值应变逐渐增加;随着含水率的增加,蒸压轻质混凝土的拉压强度逐渐降低,且降低的速度越来越慢,并趋于稳定;蒸压轻质混凝土吸收的总能量和弹性能随着含水率的增加逐渐降低,总体呈先陡后缓的降低趋势,而耗散能则缓慢增长。In order to study the tensile and compressive properties of autoclaved lightweight concrete under different moisture content and the influence of moisture content on its energy parameters,the splitting tensile and uniaxial compression tests on autoclaved lightweight concrete under different moisture content were carried out.The test results show the following facts.The peak stress and elastic modulus of autoclaved lightweight concrete gradually decrease with the increase of water content,while the peak strain gradually increases.As the moisture content increases,the tensile and compressive strength of autoclaved lightweight concrete gradually decreases,and the rate of decrease becomes slower and slower and tends to be stable.With the increase of moisture content,the total energy and elastic energy absorbed by autoclaved lightweight concrete gradually decrease,generally showing a steep first and then a slow decrease trend,while the dissipated energy slowly increases.

关 键 词：蒸压轻质混凝土 含水率 拉压性能 能量吸收 

分 类 号：TU522.32[建筑科学—建筑技术科学]