In 1988, Heilman Pavement Specialties proposed a demonstration project to show that Stockpiled Reclaimed Asphalt Pavement (RAP) can be economically used to produce a cold recycled asphalt mix, i.e., Recycled Heilman Mix (RHM) with improved properties. About 8000 tons of asphalt pavement milled in 1986 in Ford City, Pennsylvania were used for the project. The objectives of this project were: (1) Utilization of existing RAP to produce an economical cold recycled asphalt mix or RHM; and (2) Production of RHM that can be stockpiled for at least two weeks, remain flexible and allow addition of open graded aggregate. Based on the field and laboratory evaluation, construction and performance data the following conclusions are made: (1) RHM appears to be a viable method of recycling asphalt pavements; (2) RHM is stockpile able and therefore has an advantage over E-5-Mix; (3) RHM appears to have a lower VOC emission compared to E-5-Mix; (4) RHM is more expensive ($22.61/ton) compared to E-5-Mix ($15.79/ton); (5) The placement, compaction and the construction of RHM and E-5-Mix were good but E-5-Mix appeared to break earlier than RHM; (6) The RHM had a better asphalt coating of stones; (7) The need for a seal coat on RHM, although claimed to be unnecessary by the company, needs to be further investigated, and the RHM needs to be used on other parts of the state to evaluate its potential for general use; and (8) The control used in this project is itself not fully evaluated and it is not a standard.


  • English

Media Info

  • Features: Appendices; Figures; Photos; Tables;
  • Pagination: 51 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00629112
  • Record Type: Publication
  • Report/Paper Numbers: Res Proj No. 91-57
  • Created Date: May 20 1993 12:00AM