碱激发矿渣陶粒混凝土空心砌块砌体抗剪试验

doi:10.11918/j.issn.0367-6234.201806062

首页 > 过刊浏览>2018年第50卷第12期 >165-170. DOI:10.11918/j.issn.0367-6234.201806062

碱激发矿渣陶粒混凝土空心砌块砌体抗剪试验
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                        10.11918/j.issn.0367-6234.201806062
                    
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作者单位:(1.哈尔滨工业大学 土木工程学院,哈尔滨150090;2.结构工程灾变与控制教育部重点实验室(哈尔滨工业大学),哈尔滨150090;3.土木工程智能防灾减灾工业和信息化部重点实验室(哈尔滨工业大学),哈尔滨150090)
作者简介:郑文忠(1965—),男,博士生导师,长江学者特聘教授
通讯作者:郑文忠,hitwzzheng@163.com
中图分类号:TU375.6
基金项目:国家自然科学基金(51478142)

Experimental study on shear performance of alkali-activated slag ceramsite concrete hollow block masonry

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(1.School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China; 2.Key Lab of Structures Dynamic Behavior and Control (Harbin Institute of Technology), Ministry of Education, Harbin 150090, China; 3.Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters (Harbin Institute of Technology), Ministry of Industry and Information Technology, Harbin 150090, China)

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摘要:

为研究碱激发矿渣陶粒混凝土空心砌块砌体的受剪性能,对108个用Mb25~Mb130碱激发矿渣净浆和用Mb25~Mb80碱激发矿渣陶砂砂浆砌筑的碱激发矿渣陶粒混凝土空心砌块砌体进行抗剪试验.试验结果表明:碱激发矿渣净浆作砌筑浆体的砌体抗剪强度低于碱激发矿渣陶砂砂浆作砌筑浆体的砌体.碱激发矿渣陶砂砂浆作砌筑浆体的砌体抗剪强度低于用水泥砂浆和混合砂浆作砌筑浆体的砌体.砌体的抗剪强度随砌筑浆体抗压强度的提高而增大,Na₂O含量、砂灰比对砌体抗剪强度的影响不容忽视.基于试验结果,分别建立了用碱激发矿渣净浆和碱激发矿渣陶砂砂浆作砌筑浆体时的碱激发矿渣陶粒混凝土空心砌块砌体抗剪强度计算公式.

Abstract:

To investigate the shear performance of alkali-activated slag ceramsite concrete hollow block masonry,tests on 108 masonry prisms with Mb25~Mb130 of alkali-activated slag paste and Mb25~Mb80 of alkali-activated slag mortar with pottery sand were carried out. The results show that the shear strength of masonry with alkali-activated slag paste was less than that with alkali-activated slag mortar, and the shear strength of masonry with alkali-activated slag mortar was lower than that with ordinary cement and composite mortars, respectively. The shear strength of masonry increased as the compressive strength of alkali-activated slag paste and mortar increased. The effects of Na₂O contents and sand to cementitious materials ratios on the shear strength of masonry should not be ignored. Based on the results, the formulae for the shear strength of alkali-activated slag ceramsite concrete hollow block masonry with alkali-activated slag pastes and mortars were developed, respectively.

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郑文忠,焦贞贞,王英,黄文宣,赵宇健.碱激发矿渣陶粒混凝土空心砌块砌体抗剪试验[J].哈尔滨工业大学学报,2018,50(12):165. DOI:10.11918/j. issn.0367-6234.201806062

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收稿日期:2018-06-09
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在线发布日期: 2018-11-28
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