Construction Monitoring of Paving Fabrics Systems to Reduce Reflective Cracking; Interim rept., Jul 07-Jul 08

摘要

Reflective cracking has been a major issue in pavement rehabilitation for many decades, due in part to shrinkage, constant expansion and contraction of pavement. These cracks result in uncomfortable rides and further deteriorate highways and local streets. Because of these problems, the application of paving fabrics systems to reduce reflective cracking is being investigated. If applied correctly, these paving fabrics should control moisture protruding to the base, provide tensile reinforcement, and prevent or reduce the propagation of cracks to the new overlay. The performance of paving fabrics is related to several factors including proper installation procedures. To assure the performance record for paving fabrics, the installation specification, and guidelines must be strictly enforced. This report presents the construction monitoring of twelve paving fabric research sections. Lessons learned and suggestions for installation improvements are discussed.