Study On Technical Evaluation Method And Road Performance Of Warm Mix Asphalt

WMA technology promote the actual construction temperature’s decline in the process of mixing and compaction due to its viscosity reduction effect research of WMA will play an important role in the next few years of exploring the road engineering under the background of our country advocating strongly the strategic thought of energy conservation and emissions reduction and sustainable development. Currently researchers focuses more on the basic theory and evaluation of road performance of WMA and its mixture but lack of system comparisons and evaluation methods about the material performance, this article put forward a comprehensive evaluation method of WMA.This is the first integrated presentation of WMA technology evaluation methods?viscosity-temperature curve, vary temperature-compaction method and mixing power method. The research of road performance mainly includes of five kinds of asphalt mixture’s high temperature performance and water stability. Putting forward the concept of WMA curing condition, and analyzed the influence of the curing temperature and curing time on the asphalt mixture Marshall stability and dynamic stability.It shows that the warm mixing characteristic of asphalt can be evaluated by temperature difference and regression parameter indicators. ACMP warm-mix asphalt mixture has better high temperature performance and worse water stability. The Marshall stability and dynamic stability increase with the increasing of curing period, and curing temperature maily changes the forming rate of strength.