摘要
以柴油、大豆油、自制冷补剂以及基质沥青为原料制备了冷补沥青液,并将其与集料拌和得到了冷补沥青混合料.重点研究了冷补剂用量对冷补沥青液60℃粘度和冷补沥青混合料稳定度的影响以及考察了冷补沥青混合料的粘聚性、抗水剥落性以及低温工作度和抗冻性,并将所制备的沥青混合料与使用市售国产和进口冷补剂制得的混合料进行了性能对比.结果表明:含5%冷补剂的冷补沥青混合料的初始稳定度和成型稳定度分别为3.88kN和6.14kN,试样保留率为93%,沥青裹覆率达99%,低温拌和方便,使用性能好.
Cold patch asphalt was prepared by mixing diesel,soybean oil,self-made cold patch additives and base asphalt as raw materials,and was blended together with aggregates to obtain cold patch asphalt mixture.We studied the effects of the amount of cold patch additive on the viscosity of cold patch asphalt at 60 ℃ and Marshall Stability（MS） of cold patch asphalt mixtures.The cohesion performance,water stability,low-temperature workability and frost-resistance of the cold patch asphalt mixture were also investigated.We further compared our prepared mixture with commercial ones in terms of the retention ratio and MS.The results show that the optimized cold patch asphalt mixture containing 5% cold-patch additive displays good workability and performance：the initial MS and molding MS of the mixture are 3.88 kN and 6.14 kN,and the samples＇ retention ratio and asphalt coating ratio are 93% and 99% respectively.
出处
《武汉工程大学学报》
CAS
2011年第10期49-53,共5页
Journal of Wuhan Institute of Technology
关键词
冷补沥青
冷补剂
粘度
马歇尔稳定度
cold patch asphalt
cold patch additive
viscosity
Marshall stability
