Performance Test on Waterproof Binding Layer of Deck Pavement of Prestress Concrete Box-girders Bridge with Corrugated Steel Webs

Based on the expressway of PC composite box-girder bridge with corrugated steel webs in Longhai Road in Zhengzhou City. different bond performances between pavement and deck when two kinds of waterproof bonding materials (polyurethane and emulsified asphalt) were used in the AC and SMA asphalt concrete bridge deck pavement at different temperatures and were studied. Experimental results show that the shear strength and drawing property of AC and SMA asphalt concrete pavement and bridge deck decrease with the temperature increasing. When polyurethane material was used as waterproof adhesive layer at low temperature, room temperature and high temperature conditions, the shear strength and drawing property of AC and SMA asphalt concrete pavement and bridge deck are always higher than those of the concrete pavement and bridge deck with emulsified asphalt material. Compared with the SMA asphalt concrete pavement, the bonding performance between the pavement and the bridge deck of AC asphalt concrete pavement is better than that of SMA asphalt concrete pavement.