The development of mechanistic empirical algorithms for more realistic estimates of anticipated faulting in concrete pavements is described and evaluated. Earlier theoretical investigations are considered, interpreted through more recent finite element results, and calibrated using an extensive data base of field observations. A factor influencing faulting is the dowel-concrete bearing stress, for which an improved method of detemination is presented. A procedure is outlined for assessing the need for dowels in both plain and reinforced jointed concrete pavements, also resulting in an estimate of therequired bar diameter so that significant faulting is prevented. Application of the procedure is facilitated through use of program pfault, which can be implemented on a personal computer. This paper appears in transportation research record no. 1286, Design and evaluation of rigid and flexible pavements 1990.
Samenvatting