高温后砌体受压性能的试验研究

朱晶; 冯世辉; 梁思琪; 刘劭同; 郭清华; 黄文宣

doi:10.13204/j.gyjzG21011111

高温后砌体受压性能的试验研究

doi: 10.13204/j.gyjzG21011111

1. 哈尔滨理工大学建筑工程学院, 哈尔滨 150080;
2. 哈尔滨工业大学结构工程灾变与控制教育部重点实验室, 哈尔滨 150090

基金项目:

黑龙江省科学基金项目（LH2019E066）；国家自然科学基金项目（51508140）；大学生创新创业项目（202110214252）。

详细信息

作者简介:
朱晶,女,1981年出生,博士后,讲师,硕士生导师。电子信箱:zhujing@hrbust.edu.cn

计量
- 文章访问数: 68
- HTML全文浏览量: 9
- PDF下载量: 3
- 被引次数: 0
出版历程
- 收稿日期: 2021-01-11
- 网络出版日期: 2021-11-11

EXPERIMENTAL RESEARCH ON COMPRESSIVE PERFORMANCES OF MASONRY AFTER BEIING SUBJECTED TO HIGH TEMPERATURE

1. College of Civil Engineering and Architecture, Harbin University of Science and Technology, Harbin 150080, China;
2. Key Lab of Structures Dynamic Behavior and Control of the Ministry Education, Harbin Institute of Technology, Harbin 150090, China

摘要

摘要: 植物纤维增强碱矿渣胶凝材料是一种极具应用前景的新型绿色建材，既可有效利用矿渣、秸秆等工农业废弃物，降低成本，又能明显提升砌块砌体的抗裂性能。通过对60片不同纤维增强砌块砌体在常温和高温后的受压性能的试验，结果表明：植物纤维、聚丙烯纤维和微细钢纤维增强砌块砌体的强度等级相当于混凝土砌块MU7.5、MU10、MU15的砌体；而800℃高温后植物纤维仍对基体具有一定的增韧效果。通过回归分析，建立高温后植物纤维增强砌块砌体抗压强度计算方程。
- 碱矿渣胶凝材料 /
- 砌块砌体 /
- 抗压强度 /
- 极限应变 /
- 弹性模量
Abstract: The plant-fiber-reinforced alkali-activated-slag cementitious material is a kind of new green building material with a great application prospect. The application of industrial and agricultural wastes such as slag and straw can be not only reduce the cost of construction cost, but also obviously improve the anti-cracking performances of the block masonry. The compressive performance tests were conducted on 60 pieces of block masonry constructed by different fiber-reinforced alkali-activated-slag cementitious material at normal temperature and after high temperature. The test result showed that the strength grades of fiber-reinforced block masonry constructed by plantfiber,polypropylene fiber or microsteel fiber were equivalent to the concrete block masory of MU7.5, MU10 and MU15 at normal temperature respectively. The plant fiber still had a certain toughening effect on masory after being subjected to 800℃. By means of regression analysis, an equation for calculating the compressive strength of plant-fiber-reinforced block masonry after being subjected to high temperature was constructed.
- alkali-activated-slag cementitious material /
- block masonry /
- compressive strength /
- ultimate strain /
- elasticity modulus

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参考文献(26)

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