| 引用本文: | 郑文忠,焦贞贞,邹梦娜,王英.碱激发矿渣混凝土空心砌块砌体抗压强度试验[J].哈尔滨工业大学学报,2019,51(6):40.DOI:10.11918/j.issn.0367-6234.201809149 |
| ZHENG Wenzhong,JIAO Zhenzhen,ZOU Mengna,WANG Ying.Experiment of axial compressive strength of alkali-activated slag concrete hollow block masonry[J].Journal of Harbin Institute of Technology,2019,51(6):40.DOI:10.11918/j.issn.0367-6234.201809149 |
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| 碱激发矿渣混凝土空心砌块砌体抗压强度试验 |
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郑文忠1,2,焦贞贞1,2,邹梦娜1,2,王英1,2
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(1.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; 2.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)
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| 摘要: |
| 为考察碱激发矿渣陶粒混凝土空心砌块（alkali-activated slag ceramsite concrete hollow block,简称AASCHB）砌体的轴心受压性能,完成了由强度等级为MU7.5、MU10、MU15的AASCHB和强度等级为Mb20、Mb25、Mb30的碱激发矿渣陶砂砂浆（alkali-activated slag mortar with pottery sand,简称AASM）砌筑的36个砌块砌体试件的轴心受压试验.试验结果表明:AASCHB砌体的抗压强度随AASCHB抗压强度的增大而增大；而AASM抗压强度对砌体抗压强度的影响相对复杂.用AASCHB和AASM砌筑的砌块砌体轴心抗压强度试验值普遍低于按GB 50003—2011《砌体结构设计规范》砌体轴心抗压强度计算公式的预估值.在《砌体结构设计规范》砌体轴心抗压强度计算公式的基础上,通过引入AASM特性系数,调整砂浆强度影响修正系数,建立了以AASCHB抗压强度和AASM抗压强度为关键参数的这类新型砌块砌体的轴心抗压强度计算公式. |
| 关键词: 碱激发矿渣陶粒混凝土 碱激发矿渣陶砂砂浆 空心砌块 砌体 抗压强度 |
| DOI：10.11918/j.issn.0367-6234.201809149 |
| 分类号:TU375.6 |
| 文献标识码:A |
| 基金项目:国家自然科学基金(51478142) |
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| Experiment of axial compressive strength of alkali-activated slag concrete hollow block masonry |
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ZHENG Wenzhong1,2,JIAO Zhenzhen1,2,ZOU Mengna1,2,WANG Ying1,2
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(1.Key Lab of Structures Dynamic Behavior and Control (Harbin Institute of Technology), Ministry of Education, Harbin 150090, China; 2.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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| Abstract: |
| To investigate the axial compressive performance of alkali-activated slag ceramsite concrete hollow block (AASCHB) masonry, a total of 36 masonry specimens of the AASCHB at MU7.5, MU10, and MU15 as well as alkali-activated slag mortar with pottery sand (AASM) at Mb20, Mb25, and Mb30 were tested. Results show that the axial compressive strength of the AASCHB masonry increased with that of AASCHB, while the axial compressive strength of the AASM had a complicated impact on that of the masonry.Based on the formula provided in Code for Design of Masonry Structures(GB 50003—2011), the estimated values of the axial compressive strength of the masonry using AASCHB and AASM are generally higher than the experimental results.By introducing the characteristic coefficient of AASM and adjusting the correction coefficient of the axial compressive strength for mortar, a formula for the axial compressive strength of the new type of block masonry with the key parameters of the compressive strength of AASCHB and AASM was proposed, which is in accordance with the codified formula of the masonry axial compressive strength adopted in Code for Design of Masonry Structures. |
| Key words: alkali-activated slag ceramsite concrete alkali-activated slag mortar with pottery sand hollow block masonry axial compressive strength |
