摘要
在夏季高温天气下桥面温度高达60℃以上,桥面铺装结构中的常规沥青类粘结层的黏附能力会随温度升高大幅下降,造成沥青铺装面层与下层之间的黏结及抗剪强度不足而发生剪切推移病害。采用二阶环氧沥青作为SMA层下的防水黏结层进行了试验研究,验证了其作为SMA层下防水黏结层的可行性。
In the high temperature weather in summer, the temperature of the bridge deck is above 60℃.And the adhesion ability of the conventional asphalt bonding layer in the bridge deck pavement structure will decrease significantly with the increase of temperature, which causes the insufficient adhesion and shear strength between the asphalt overlay and the lower layer to produce the shear drift disease. The second-order epoxy asphalt is used as the waterproof bonding layer under the SMA layer to carry out an experimental study, and the feasibility of it as the waterproof adhesive layer under the SMA layer is verified.
出处
《城市道桥与防洪》
2021年第10期186-188,M0017,共4页
Urban Roads Bridges & Flood Control
