SHRP's two projects, H-105 and H-106, deal with identification of promising materials for repair of potholes, spalls, joints and cracks, and field installation and short-term evaluation of these materials, respectively. The paper discusses the findings of these two studies. The first part of the paper discusses the results of the questionnaire administered to State Highway Authorities, United States cities and counties, and Canadian Highway Authorities, the performance of these materials as reported in the questionnaire, and the materials selected for further testing in the field. In the second part, the paper further discusses the experimental design and research plans for field installation of the materials. The plan includes factors of environment, traffic, pavement condition, method of repair, etc., under which the materials are to be evaluated. The laboratory testing plan, to investigate the association of field performance with these laboratory test results, it aslo discussed. Limited short-term field performance data are presented.
Samenvatting