Preservation Spec Update
BY AsphaltPro Staff
As reported in the May 2019 edition of AsphaltPro Magazine, AASHTO’s emulsion task force has been preparing new specifications for use in pavement preservation processes. Check out the article “New AASHTO Pavement Preservation Standards, Explained” at https://theasphaltpro.com/articles/aashto-emulsion-standards/ for in-depth information. Recently, AASHTO’s TSP2 website has published construction guide specs for four treatment methods:
- Emulsified chip seal
- Hot applied chip seal
- Micro Surfacing
- Emulsified asphalt fog seal
If you visit https://tsp2-etf.org/specs-checklists/specifications/ you will also find construction guide highlights for chip seal, fog seal and micro surfacing, among other useful pavement maintenance and preservation treatment guidance.