超高性能混凝土和聚丙烯纤维混凝土与素混凝土结合情况的实验研究

Experimental Study on the Combination of Ultra-High Performance Concrete and Fiber Reinforced Concrete Polypropylene with Plain Concrete

为修复梁端寻找一种可替代的材料,以恢复受损梁的抗剪能力,延长受损梁的使用寿命。对超高性能混凝土和聚丙烯纤维混凝土与素混凝土粘结的试件进行斜剪试验和劈裂圆筒试验,获得试件破坏时的最大荷载,并进行数据分析,得出超高性能混凝土在粘结强度、抗拉强度和抗压强度以及经济适用性方面具有优秀的表现。超高性能混凝土在梁端修复甚至结构物的修补上将会是很好的一种选择。

To find an alternative material for repairing the end of the beam,so as to restore the shear strength of the damaged beam and extend the service life of the damaged beam.The slant shear test and split cylinder test were carried out on the specimens of ultra-high performance concrete and fiber reinforced concrete polypropylene bonded with plain concrete,and the maximum load of the specimens was obtained.The data were analyzed,and the results showed that ultra-high performance concrete had excellent performance in the aspects of bond strength,tensile strength,compressive strength and economic applicability.Ultra-high performance concrete will be a good choice for beam end repair and even structural repair.