Expansion behavior of self-stressing concrete confined by glass-fiber composite meshes
Expansion behavior of self-stressing concrete confined by glass-fiber composite meshes
复制标题
DOI：
10.1016/j.conbuildmat.2016.10.022
复制
发表时间：
2016-12-15
影响因子：
7.4
通讯作者：
Zhang, Xudong
中科院分区：
文献类型：
--
作者：
Man, Teng;Wang, Boxin;Zhang, Xudong
约束自应力混凝土（SSC）有效地提高了混凝土材料的抗裂性能。考虑到钢筋或纤维增强SSC的缺点，我们提出了玻璃纤维复合材料网格增强SSC。网格增强SSC的一些力学性能已被研究，但其膨胀性能仍不清楚。在这项研究中，膨胀实验进行，以了解这种新的组合的膨胀行为。采用指数模型和余切模型对膨胀变形的发展规律进行了研究和推广。根据实验结果对膨胀行为进行了理论分析。分析表明，膨胀应变随宽度约束的增加而增加，随纵向约束的增加而减小。玻璃纤维复合网格增强SSC具有提高混凝土材料抗裂性的潜力。(C)2016爱思唯尔有限公司版权所有
Confined self-stressing concrete (SSC) efficiently improves the crack resistance of concrete materials. Considering the drawbacks of steel bar- or fiber-reinforced SSC, we propose glass-fiber composite mesh-reinforced SSC. Some mechanical properties of mesh-reinforced SSC have been investigated, but their expansion properties remain unclear. In this research, expansion experiments were conducted to understand the expansion behavior of this new combination. The development of expansion deformation was obtained and generalized using exponential and cotangential models. Theoretical analyses of the expansion behavior were deduced from the experimental results. The analyses showed that the expansion strain increases with the increment of width confinement and decreases with the increment of longitudinal confinement. Glass-fiber composite mesh-reinforced SSC has the potential to improve the crack resistance of concrete materials. (C) 2016 Elsevier Ltd. All rights reserved.