用于评估混杂纤维增强泡沫混凝土的韧性、弹性和物理性能。

Toughness, elasticity and physical properties for the evaluation of foamed concrete reinforced with hybrid fibers.

作者信息

Dawood Eethar Thanon, Mohammad Yahya Ziad, Abbas Waleed Abdulrazzak, Mannan Mohamed Abdul

机构信息

Building and Construction Dept., Technical College of Mosul, Northern Technical University, Mosul, Iraq.

Building and Construction Eng., University of Technology, Baghdad, Iraq.

出版信息

Heliyon. 2018 Dec 27;4(12):e01103. doi: 10.1016/j.heliyon.2018.e01103. eCollection 2018 Dec.

DOI:10.1016/j.heliyon.2018.e01103

PMID:30603721

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6307308/

Abstract

This study has been undertaken to investigate the evaluation of Fiber-reinforced Foamed Concrete (FRFC) performance by the use of toughness and non-destructive tests. These tests cover the workability, density, static modulus of elasticity, toughness, ultrasonic pulse velocity and absorption tests. Different FRFC mixes using carbon fibers in the order of 0.5, 1 and 1.5% carbon fibers were used. Also, the combinations of carbon fibers (C) and polypropylene fibers (PP) as 1% C+ 0.5% PP, and 0.5% C+1% PP were prepared. Lastly, the inclusion of polypropylene fibers with the order of 1.5% PP was used to strengthen the foamed concrete mix. The results showed that the use of 1.5% of C has affected the modulus of elasticity and flexural toughness of foamed concrete. On the other hand, a strong relationship is found between compressive strength and ultrasonic pulse velocity for FRFC.

摘要

本研究旨在通过韧性和无损检测来调查纤维增强泡沫混凝土（FRFC）的性能评估。这些测试包括工作性、密度、静态弹性模量、韧性、超声波脉冲速度和吸水率测试。使用了不同的FRFC混合料，其中碳纤维的含量分别为0.5%、1%和1.5%。此外，还制备了碳纤维（C）和聚丙烯纤维（PP）的组合，即1%C + 0.5%PP和0.5%C + 1%PP。最后，使用含量为1.5%PP的聚丙烯纤维来增强泡沫混凝土混合料。结果表明，1.5%的C用量影响了泡沫混凝土的弹性模量和弯曲韧性。另一方面，发现FRFC的抗压强度与超声波脉冲速度之间存在很强的关系。