层布式钢纤维混凝土力学性能

为提高混凝土的力学性能,采用层布钢纤维对素混凝土进行抗压强度、抗折强度、荷载-挠度曲线以及弯曲韧性进行初步探讨,并依次考虑层位和掺量变化对它们的影响.通过实验数据分析得到,层布钢纤维的加入使抗折强度有明显的提高,最大提高了22.6%;由荷载-挠度曲线分析,层布钢纤维改善了混凝土的受力特性,使混凝土的韧性显著改善,在破坏时呈现裂而不断,会出现几个波峰的现象;利用日本JCI(Japan Concrete Institute)SFRC委员会弯曲韧度系数法计算韧度,结果表明,层布钢纤维混凝土具有良好的增强和增韧效应.

Mechanics character for the concrete reinforced by layered steel fiber

In order to enhance the mechanical properties for the concretes,this article takes a preliminary discussion on compressive strength,the anti-booklet intensity,the load-deflection curve,the curving toughness for the plain concrete in terms of layered steel fiber.And the change of the content and layer to their influence is considered.All the results show that the anti-booklet intensity has increased significantly because of the level cloth steel textile fiber,and can be enhanced to 22.6% maximum,the level cl...