01628591

Component

The skid resistance of road surfaces is an important parameter for road safety. Decreasing skid resistance correlates with increasing number of road accidents. This paper presents outcomes of a study that aims for a correlation between skid resistance measurement in the lab and in the field. Therefore, representative test sections on the highway network with stone mastic asphalt (SMA) and exposed aggregate concrete surface (EACS) were selected in a first step. High resolution skid resistance measurements were carried out on these test sections by a monitoring vehicle (RoadSTAR) equipped with a skiddometer. Based on these field measurements, spots with a homogeneous skid resistance were chosen and cores were taken. Skid resistance measurements were run on these cores in the lab on the Wehner/Schulze device. It was found by regression analysis that data from field and lab correlated in a linear way with high coefficient of determination (R² = 0.89). The correlation is independent of the type of surface layer and is valid for a range of friction coefficients from 0.52 to 0.97. With this correlation at hand, extensive field measurements carried out for acceptance testing can be substituted by efficient and economic lab tests based on the Wehner/Schulze device.

This paper was sponsored by TRB committee AFD20 Standing Committee on Pavement Condition Evaluation.

01618707

17-00121

English

0000-0002-8329-8687

12p

2017

Transportation Research Board 96th Annual Meeting

Digital/other

Figures; Photos; References; Tables

Acceptance tests; Core samples; Correlation analysis; Field tests; Laboratory tests; Regression analysis; Skid resistance; Stone matrix asphalt; Test sections

Exposed aggregate concrete

Highways; Materials; Pavements

Transportation Research Board Annual Meeting 2017 Paper #17-00121

TRIS, TRB, ATRI

Dec 8 2016 9:57AM