Pavement Treatment Effectiveness, 1995 SPS-3 and SPS-4 Site Evaluations, NationalReport

摘要

Preventive pavement maintenance treatments selected for study under SHRP projectH-101 were placed under the LTPP program as specific pavement studies (SPS)-SPS-3 for flexible pavements and SPS-4 for portland cement concrete surfaced pavements (PCCP). The purpose of the research experiments were as follows: Define the most effective timing for application of various treatments; Evaluate the effectiveness of treatments in prolonging the life of the pavement; and Share information and experience among highway agencies and industry. The flexible pavement preventive maintenance treatments studied included: Crack sealing; Slurry seal; Chip seal; and Thin hot-mix asphalt overlay. The portland cement concrete surfaced pavement preventive maintenance treatments studied included: Joint/crack sealing, and Undersealing.