Pavement Preservation Journal, Fall 2011, Vol. 5, No. 1
By Scott Shuler, Ph.D., and Jason Hessling
We measured performance of two different crack sealants over a period of four years, and found significant differences in performance even after only one winter season. We also found application of magnesium chloride (MgCl) deicer to the pavements prior to crack sealing had a significant negative effect on performance of both crack sealants at the higher elevation test section, but not at the lower elevation test section.
Crack sealants prevent moisture and debris intrusion into pavements. The length of time that crack sealants are effective is important to highway agencies.