寒区冷补沥青液的制备及优化设计  

Preparation and Optimization Design of Cold Patch Asphalt in Cold Regions

作　　者：杨彦海[1] 朱晓 杨野[1,2] 岳靓 YANG Yanhai;ZHU Xiao;YANG Ye;YUE Liang(School of Traffic and Surveying Engineering,Shenyang Jianzhu University,Shenyang,China,110168;College of Transportation Engineering,Dalian Maritime University,Dalian,China,116026)

机构地区：[1]沈阳建筑大学交通与测绘工程学院,辽宁沈阳110168 [2]大连海事大学交通运输工程学院,辽宁大连116026

出　　处：《沈阳建筑大学学报（自然科学版）》2023年第2期305-313,共9页Journal of Shenyang Jianzhu University：Natural Science

基　　金：国家自然科学基金青年基金项目(51908378);辽宁省特聘教授项目(tpjs2017003);辽宁省交通科技重点项目(202013)。

摘　　要：目的 研究寒区冷补沥青液的制备,解决寒区沥青路面坑槽病害难以快速、高质量修补的问题。方法 采用3#航空煤油、100#溶剂油作为稀释剂,单组分湿固化添加剂、单组分树脂类添加剂以及抗剥落剂LB-6176作为添加剂,制备适合寒区使用的冷补沥青液;采用正交试验对冷补液的配方进行优化,提出寒区冷补液性能建议技术要求。结果 冷补液黏度受到稀释剂和添加剂掺量的影响程度最大,抗剥落剂和添加剂决定了黏附性和1~3d内挥发性的好坏,流动性能随添加剂掺量的增加而降低,且影响趋势相似。结论 冷补液的配比为:沥青100%(外掺质量分数),稀释剂40%,添加剂12%,抗剥落剂0.2%;建议冷补液常温表观黏度不超过20 Pa·s、黏附性等级不小于4级、流动时间小于180 s、1 d的损失率不小于0.7%、3 d损失率不小于1.0%。The preparation of cold patch asphalt in cold regions was studied.The problem that asphalt pavement potholes in cold regions are difficult to be repaired quickly and with high quality has been solved.3#aviation kerosene and 100#solvent oil were used as diluents,and one-component wet-curing additive,one-component resin additive and anti stripping agent LB-6176 are used as additives.The formula of cold rehydration solution was optimized by orthogonal test,and the technical requirements for cold rehydration performance were proposed.The viscosity of cold rehydration solution is most affected by the amount of diluent and additive.The anti stripping agent and additive determine the adhesiveness and volatility within 1~3 days.The flow performance decreases with the increase of the amount of additive,and the influence trend is similar.The proportion of cold patch asphalt is:asphalt 100%(added mass fraction),diluent 40%,additive 12%,anti stripping agent 0.2%.It is recommended that the apparent viscosity of cold patch asphalt at room temperature should not exceed 20 Pa·s,the adhesion grade should not be less than Grade 4,the flow time should be less than 180 s,the loss rate of 1d should not be less than 0.7%,and the loss rate of 3 d should not be less than 1.0%.

关 键 词：寒区 冷补液制备 配方优化设计 正交试验 

分 类 号：TU528.37[建筑科学—建筑技术科学] U416[交通运输工程—道路与铁道工程]