01372859

Component

Microsurfacing has been shown as an effective pavement preservation tool when applied to the right road, at the right time for the right distress. This study looks at the current state of practice of microsurfacing in Texas and compares it to best practices extracted from existing literature. A survey of department of transportation (DOT) personnel, contractors and emulsion suppliers in Texas provides insight into the most crucial factors contributing to the success or failure of microsurfacing. From the results of the survey, literature reviews, case studies and site visits, the research team analyzed material selection and mix design methods, construction practices, equipment practices and performance measures for microsurfacings. It was concluded that project selection is the most important contributor to a successful microsurfacing, and falls under DOT control. However, reliance on contractors for input into proper project selection places the agency in a vulnerable position. A certification course to educate personnel is recommended.

This paper was sponsored by TRB committee AHD20 Pavement Maintenance

01362476

12-1888

English

14p

2012

Transportation Research Board 91st Annual Meeting

Digital/other

Figures; References; Tables

Best practices; Pavement distress; State of the practice

Microsurfacing (Surface treating); Pavement preservation; Project selection

Texas

Highways; Maintenance and Preservation; Pavements; I60: Maintenance

Transportation Research Board Annual Meeting 2012 Paper #12-1888

TRIS, TRB

Feb 8 2012 5:06PM