PR PLAST.S在宁杭高速公路路面工程上的应用
郑晨晖1  梁龙玲2
（1、江苏省高速公路建设指挥部　南京市　210004；2、江苏省交通规划设计院　南京市　210005）

摘要：路面车辙是路用性能的一个重要方面，是衡量行驶质量的重要指标之一。宁杭高速公路常州段沥青砼路面中面层采用了PRPLAST.S添加剂，以提高沥青路面抵抗车辙性能。本文介绍了PRPLAST.S添加剂的性能及使用情况。
关键词：宁杭高速公路　沥青路面　PR PLAST.S　车辙　

沥青混凝土路面车辙是目前我省高速公路早期破坏的主要形式之一，对防止沥青路面出现车辙的研究和处理方案也是目前沥青路面研究的一个重点方向，包括从沥青混合料的结构设计以及材料设计都提出了一些新的观点并在工程实践中得到采纳。宁杭高速公路常州段沥青路面中面层采用了PR PLAST.S 添加剂，以提高沥青路面抵抗车辙的性能。现对PR PLAST.S添加剂的性能和使用情况做一总结。
1　PR PLAST.S添加剂介绍
PR PLAST.S是一种大小为4mm的固体颗粒物，是法国P.R.I公司专门研制用于改善热拌沥青混合料特性，特别是提高沥青混
PR PLAST.S road in Hangzhou Expressway Engineering Application
Zheng Chenhui 1 Lianglong Ling 2
(1, Jiangsu Provincial Expressway Construction Headquarters Nanjing 210004; 2, Transport Planning and Design Institute of Jiangsu Province, Nanjing 210005)

Abstract: The performance of road pavement rutting is an important aspect, is an important indicator to measure the quality of driving. Changzhou, Nanjing-Hangzhou Expressway section of asphalt concrete pavement surface using PRPLAST.S additives to improve resistance to rutting performance of asphalt pavement. This article describes PRPLAST.S performance and use of additives.
Keywords: Nanjing-Hangzhou Expressway Asphalt Pavement Rutting PR PLAST.S

Rutting of asphalt concrete pavement is the province of early highway main form of damage, appeared to prevent rutting of asphalt pavement and asphalt pavement treatment options are currently a focus of research direction, from the structural design of asphalt mixture design and materials have put forward some new ideas and to be adopted in engineering practice. Changzhou, Nanjing-Hangzhou Expressway in the surface layer of Asphalt Pavement PR PLAST.S additives used to improve the performance of asphalt pavement rutting resistance. Now on the PR PLAST.S the performance and use of additives to make a conclusion.
1 PR PLAST.S additives introduced
PR PLAST.S is a size of 4mm of solid particles, is a French company specialized PRI developed for the improvement of hot asphalt mixture properties, in particular, to improve the asphalt mix