Compression behavior of basalt fiber reinforced polymer tube confined coconut fiber reinforced concrete
Compression behavior of basalt fiber reinforced polymer tube confined coconut fiber reinforced concrete
复制标题
玄武岩纤维增强聚合物管约束椰子纤维混凝土的压缩性能
DOI：
10.1155/2018/7982396
复制
发表时间：
2018
影响因子：
--
通讯作者：
高孟冉
中科院分区：
文献类型：
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作者：
吕杨;吴学乾;朱玉豪;梁晓;成全喜;高孟冉
玄武岩纤维价格低廉，力学性能优良。此外，与环保的椰子纤维相结合，它可以有助于可持续建筑材料。在这项研究中，复合材料由玄武岩纤维增强聚合物（BFRP）管包裹椰子纤维增强混凝土（CFRC）的开发。素混凝土的28天抗压强度约为15 MPa，这代表了大量旧建筑中广泛存在的低强度和劣质混凝土。将混凝土分别浇注到钢模、内径为100 mm、高为200 mm的BFRP管和内径为160 mm、高为320 mm的BFRP管中并固化。总共构建并测试了36个圆柱形试样。进行了轴压试验，以检查由于约束的BFRP管和椰子纤维的强度和延性的提高。同时，利用已有的模型对混凝土的轴压极限强度和轴压极限应变进行了预测。结果表明，试件尺寸显著影响预测的抗压强度。
Basalt fiber is cheap and has excellent mechanical performance. In addition, in combination with the environmentally friendly coconut fiber, it can contribute to sustainable construction materials. In this study, a composite material consists of basalt fiber‐reinforced polymer (BFRP) tube‐encased coconut fiber‐reinforced concrete (CFRC) is developed. The 28‐day compression strength of the plain concrete is about 15 MPa, which represents the low strength and poor‐quality concrete widely existing in a large number of old buildings. The concrete was poured and cured into the steel moulds, BFRP tubes with the inner diameter of 100 mm and a height of 200 mm, and BFRP tubes with the inner diameter of 160 mm and a height of 320 mm, respectively. In total, 36 cylindrical specimens were constructed and tested. The axial compression tests were carried out to examine the strength and ductility enhancement due to the confinement of the BFRP tubes and coconut fibers. Also, the existing models were used to predict the ultimate axial compression strength and strain. The results show that the size of the specimen significantly influences the predicted compression strength.