01657861

Component

Hot-poured crack sealants are among the most commonly used types of pavement treatment. The cost effectiveness of their application is site specific, based on pavement conditions, traffic, installation conditions, and treatment performance. This paper presents a scenario-based analysis aimed to determine when a sealant application is cost effective. Two treatments, rout and seal and clean and seal, are considered. The equivalent annual cost (EAC) approach and cost-to-benefit (C/B) ratio are both implemented. The paper developed an analytical equation for cost effectiveness of treatment compared with no treatment based on the EAC approach. The equation relates the additional service life required for a treatment to become cost effective considering pavement construction costs, treatment costs, and pavement life expectancy. According to the case considered, it was shown that sealing can be cost effective if it extends pavement life for more than one year for all cases. Cost-to-benefit ratio showed lower effectiveness of sealing as sealing may not provide immediate improvement to pavement condition. It was concluded that cost effectiveness of sealant treatment increases when proper hot-poured sealant is selected for specific projects. The equation developed is proposed to aid agencies in selecting the proper pavement treatment considering fund availability.

This paper was sponsored by TRB committee AHD20 Standing Committee on Pavement Maintenance.

18-02259

English

4p

2018

Transportation Research Board 97th Annual Meeting

Digital/other

References

Cost effectiveness; Pavement cracking; Pavement maintenance; Sealing compounds

Highways; Maintenance and Preservation; Materials; Pavements

Transportation Research Board Annual Meeting 2018 Paper #18-02259

TRIS, TRB, ATRI

Jan 8 2018 10:33AM