Title:
Case Studies in Rehabilitation Strategy Development
Author(s):
Michael I. Darter and Kathleen T. Hall
Publication:
Concrete International
Volume:
15
Issue:
12
Appears on pages(s):
49-54
Keywords:
concrete pavement, durability, EXPEAR program; rehabilitation; restoration; strategy selection; Construction
DOI:
Date:
12/1/1993
Abstract:
The performance and rehabilitation of jointed concrete pavements were investigated in a major national field study. Among the products of the research were detailed guidelines prepared to assist practicing engineers in determining when restoration was likely to be cost-effective, and when a structural overlay was required. The database for this project included 95 sections of jointed reinforced concrete pavements and jointed plain concrete pavements in their first performance period. The sections were selected to cover the range of four major climatic zones of the United States, as well as a range of pavement conditions from good to poor (assessed on the basis of cracking, joint deterioration, joint faulting, pumping, and serviceability). The EXPEAR computer program was used to evaluate the current condition of each pavement section and predict its future condition without rehabilitation. Case studies demonstrated that restoration is the most cost-effective alternative for pavements which are structurally adequate and do not have concrete durability problems.