详情

Cold Central Plant Recycling (CCPR) - National Road Research Alliance (NRRA)

项目名称：	Cold Central Plant Recycling (CCPR) - National Road Research Alliance (NRRA)
摘要：	State and local agencies are increasingly using recycled asphalt pavement (RAP) material to construct structural layers of asphalt pavements for low-volume roadways. These layers use no virgin aggregate (or a small fractions, if any). These pavements are typically constructed using cold, in-place recycling (CIR) methods, and the top 3-4 inches of the existing pavement is milled, mixed with new asphalt binder, then directly paved and compacted. However, an alternative method using stockpiled RAP, instead of in-place RAP, is referred to as cold central plant recycling (CCPR). The research objectives are to explore the performance of MnROAD test cells constructed using two different CCPR methods (foam and emulsion) with 2 different asphalt based surfaces (HMA overlay and double chip seal). The project will also include (A) analysis of laboratory and field tests to characterize the pavement (and supporting tests), (B) studies of construction practices and costs associated with CCPR, including a survey, and (C) the production of task memos describing task work on CCPR construction, costs, and performance. The research products will be a final report and three technical briefs that provide: (1) documentation of the MnROAD experience with CCPR; (2) analysis of the performance of CCPR pavements and materials; (3) discussion of the cost-effectiveness of CCPR (including mix designs); (4) details on the CCPR construction state-of-the-practice; (5) discussion of agency concerns in developing a CCPR specification. It is hoped that the research products will help NRRA member agencies develop their own CCPR specification.
状态：	Active
资金：	99,996.67
资助组织：	National Road Research Alliance pooled fund
管理组织：	Minnesota Department of Transportation
项目负责人：	Fick, Debra
执行机构：	American Engineering Testing
主要研究人员：	Rettner, Dave
开始时间：	20180206
预计完成日期：	20200831
实际结束时间：	0