基于GA铺装层的水泥桥面铺装粘结性能研究

摘要:

浇筑式沥青混合料广泛应用于水泥混凝土桥面铺装,以满足其粘结防水要求,其基本铺装型式为“粘结层+防水层+磨耗层”或“粘结层+防水层+粘结层+磨耗层”。本研究借助浇筑式沥青混合料(GA)大油石比特性,分析GA-10作为防水粘结层对桥面铺装粘结性能影响。结果表明,GA-10与水泥混凝土桥面板粘结能力可满足水泥桥面防水与粘结性能要求。

Abstract:

For the cement concrete bridge deck pavement structure, Germany, Japan and other countries usually take the waterproof bonding layer into consideration. The basic pavement type is "bonding layer + waterproof layer + wearing layer" or "bonding layer + waterproof layer + bonding layer + wearing layer". The structure combination of bridge deck pavement in China is shifting from single layer to multi-layer, and the waterproof bonding layer is beening paid more and more attentions. Because the asphalt content of cast-in-place asphalt mixture (GA) is quite large, and there are certain bonding forces between GA-10 and cement concrete deck, the bonding performance of GA-10 with and without waterproof bonding layer is studied in this study. The results show that the bonding performance between GA-10 and cement concrete deck can provide the waterproof and bonding capacity required in place.