Field manual on design and construction of seal coats

Abstract

Seal coats have been successfully used on Texas highways for many years and with traffic volumes as high as 4000 vehicles per lane per day. The average life of seal coats is about six to seven years in Texas, however; some seal coats have performed successfully for periods of 20 or more years. These economical surfaces will continue to be a popular rehabilitation and maintenance alternative in Texas and their use in other states will increase as available highway funds decrease. This manual provides guidelines for the design and construction of seal coats. If followed, these guidelines will improve the chance of successfully placing seal coats. The manual is directed primarily to office and field engineers, laboratory personnel, and field inspectors responsible for the design and construction of seal coats. An extensive discussion of the variables affecting the design and construction of seal coats is not presented in this manual. References 1 to 15 contain a detailed discussion.