ABSTRACT
Joint sealants play a critical role in the sustainability of jointed rigid pavements and the reduction of numerous distresses including spalling, faulting, and subbase erosion damage. The average service life for a silicone sealant is approximately 10 years. However, field studies show that many sealants often fail early in the field due to unsuccessful joint preparation. This paper addresses research to assess the effect of moisture on the interface between the joint seal and the well wall on bond strength subsequent to installation. Indirect measurements appear to be useful to detect the potential for de-bonding due to excessive moisture.
