再生沥青混合料变异性影响因素正交试验

Study on the Factors and Variability Affecting Recycled Asphalt Mixture by Orthogonal Test

摘要: 运用正交试验设计方法,对RAP中沥青针入度,沥青含量,矿料级配等因素,分别拟定3个不同水平,进行三因素三水平正交试验.通过直观分析、方差分析等手段分析其再生沥青混合料路用性能的差异,找出通过控制RAP的性能控制再生沥青混合料路用性能的科学方法.

Abstract: The performance of the recycled asphalt mixture can be changed because the old asphalt mixture has variability.This paper researched the performance of recycled asphalt mixture,such as high-temperature stability,low-temperature crack resistance and water stability and its affection on the variability of the old asphalt mixture by using Marshall orthogonal experimental design and statistics methods.The purpose is to find out a scientific method to control the performance of the recycled asphalt mixture.