摘要
桥面铺装防水粘结层的破坏是导致桥面铺装病害的一个主要原因,而控制层间胶结材料的质量是提高桥面铺装耐久性的有效措施.针对同步碎石防水粘结层剪切破坏界面上出现的"白碎石"问题,提出了"两油一料"改进方法.通过室内剪切、拉拔试验,推荐了"两油一料"的最佳沥青用量,并对"两油一料"的路用性能及其适用性进行了研究.研究结果表明:与同步碎石防水粘结层相比,"两油一料"上、下层沥青洒布量取推荐最佳值时,抗剪切、拉拔强度分别提高了12%、52%,而相应的沥青用量增加仅为7.1%,表明推荐的"两油一料"具有优良的粘结性能.
The damage of waterproof is a main reason that causes the bridge pavement diseases.Controlling the quality of cementing material is an effective measure to improve the endurance of bridge pavement.＇Two asphalt one aggregate＇ is put forward to solve the problem of ＇white aggregate＇ appeared on the shearing destruction interface of synchronous crushed stone,The asphalt optimum dosage of ＇two asphalt one aggregate＇ is recommended applying the shear test and pullout test in laboratory.Pavement performance of ＇two asphalt one aggregate＇ is studied,and its applicability is studied too.The results show that the shear strength and tensile strength of ＇two asphalt one aggregate＇ are improved 12 % and 52 % respectively than that of synchronous crushed stone when the asphalt dosage of it adopts the recommended optimum dosage.While the corresponding asphalt dosage increases 7.1 % only,which shows ＇two asphalt one aggregate＇ has good bond behavior.
出处
《河北工业大学学报》
CAS
北大核心
2010年第2期92-95,共4页
Journal of Hebei University of Technology
关键词
桥面铺装
防水粘结层
同步碎石
“两油一料”
适用性
bridge pavement
waterproof
synchronous crushed stone
＇two asphalt one aggregate＇
applicability
