Methodology for Optimizing Opening of PCC Pavements to Traffic;Interim rept. Sep 00-Aug 01

摘要

Due to difficulties associated with the maintenance of highways constructed in urban settings, the expedited construction of durable Portland cement concrete (PCC) pavement has become a necessity. To obtain a durable PCC pavement, a number of parameters should be considered. One important parameter is the adequate curing of a proper mix before opening the road. Since most urban roads experience excessive traffic, the tendency of highway agencies is to open a newly constructed highway to traffic as soon as possible. A rational method to assess the minimum time required to gain a desired strength before opening it to traffic is proposed here. Two reliable and easy-to-use test methods, maturity method and seismic method, are combined to improve the determination of the readiness of a road to be opened to traffic.