Experimental Study on Construction Waste Making New Road Brick with Recycled Aggregate Concrete

摘要

Pedestrian road paving brick is a kind of paving material. It is made of cement, stone and sand as raw material, and it is cut into stripes or squares by vibrating forming surface. According to the construction waste recycled aggregate concrete, the water cement ratio, recycled aggregate replacement rate as the main parameters, design a new type of plate nail experimental study on pedestrian road brick, road brick design has 4 panels and 6 plate nail nails, nail plate thickness were designed as 1mm, 1.5mm and 2mm. The influence of different water binder ratio and recycled aggregate replacement rate on the compressive strength and skid strength of the new pavement brick was analyzed by orthogonal test. The experimental results show that the compressive strength and slip strength of the new type of pavement brick decrease with the replacement rate of recycled aggregate concrete gradually increasing. Nail type plate relative to the compressive strength of brick without road brick plate nail is similar, but the anti slip strength increased; the nail plate thickness on pavement brick tile anti sliding strength were improved, the total efficiency coefficient is similar.