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Fresh and hardened properties of an eco-friendly fiber reinforced self-consolidated concrete composed of polyolefin fiber and natural zeolite
Construction and Building Materials ( IF 7.4 ) Pub Date : 2020-01-10 , DOI: 10.1016/j.conbuildmat.2020.118064
Mostafa Zaroudi , Rahmat Madandoust , Kamran Aghaee

This experimental study discuss the fresh and hardened properties of an eco-friendly fiber reinforced self-consolidated concrete (FRSCC). In this research 10% of cement was replaced by natural zeolite (NZ), and polyolefin fiber in different volumetric contents (0.25, 0.5, 0.75, 1, and 1.25 percent) were utilized to improve the hardened properties of concrete. Twelve concrete mixtures with two different water to binder ratios of 0.33 and 0.38 were cast. Workability and viscosity of the modified FRSCC were explored by T50, V-Funnel and L-Box flow tests. The hardened concrete properties were assessed by compressive and splitting tensile tests. The results indicated a significant drop in workability characteristics by using over 1% polyolefin fiber. In terms of hardened concrete properties maximum compressive and tensile strength both obtained by FRSCC containing 0.5 percent polyolefin fiber with water to binder ratio of 0.33.



中文翻译:

由聚烯烃纤维和天然沸石组成的环保纤维增强自固结混凝土的新鲜和硬化性能

这项实验研究讨论了环保型纤维增强自固结混凝土(FRSCC)的新鲜和硬化性能。在这项研究中,用天然沸石(NZ)代替了10%的水泥,并利用了不同体积含量(0.25%,0.5%,0.75%,1%和1.25%)的聚烯烃纤维来改善混凝土的硬化性能。浇铸了十二种混凝土混合物,两种水与粘结剂的比例分别为0.33和0.38。通过T50,V漏斗和L-Box流动试验研究了改性FRSCC的可加工性和粘度。通过压缩和劈裂拉伸试验评估硬化混凝土的性能。结果表明,使用超过1%的聚烯烃纤维会大大降低可加工性。

更新日期:2020-01-11
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