钢纤维轻骨料混凝土早期抗裂性能的试验研究
Experimental Study on Early Age Anti-cracking Performance of Steel Fiber Lightweight Aggregate Concrete
张彬彬 1郑文元2
作者信息
- 1. 福州职业技术学院建筑工程系,福建 福州 350108
- 2. 福州地铁集团有限公司,福建 福州 350004
- 折叠
摘要
为研究钢纤维轻骨料混凝土的早期抗裂性,文中采用带隔板的部分约束收缩环装置试验得到环形试件的环向拉应力及应变.试验表明,此装置可以加速混凝土试件的开裂,当试件未开裂时,可使用环向拉应力与劈裂抗拉强度的比值比较钢纤维轻骨料混凝土的早期抗裂性能,比值越大,早期抗裂性能越差.
Abstract
Abstact:To study the early age anti-cracking performance of steel fiber lightweight aggregate concrete,in this paper,a partly-restrained shrinkage ring device with a partition was used to obtain the circumferential tensile stress and strain of the circular specimen.The experiment showed that the device can be used to accelerate the cracking of the concrete specimens.When the specimen is not cracked,the ratio of cir-cumferential tensile stress to splitting tensile strength can be used to compare the early age anti-cracking performance of steel fiber lightweight aggregate concrete.The larger the ratio,the worse the early age anti-cracking performance.
关键词
钢纤维轻骨料混凝土/部分约束收缩环装置/环向拉应力/抗裂性能Key words
Steel fiber lightweight aggregate concrete/Partly-restrained shrinkage ring device/Circumferential tensile stress/Anti-cracking performance引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据