Laboratory tests on High- Friction Surfaces for Highway

The suite of tests described in this report were developed as part of research project E090A/HM, Sullface Treatments, for the Road Engineering and Environmental Division of the Highways Agency. Currently, resin-based high-friction surfaces are specified in terms of component materials and an application method based on the original epoxy-residcalcined bauxite system. Whilst these high-friction surface systems provide the properties expected of them, the present method of specification tends to restrict innovation in this field. Therefore, laboratory-based tests are needed which can measure the physical properties of the complete system in order to compare, and subsequently specify, these products. This report contains a series of test protocols designed to provide the basis of the Highway Authorities Products Approval Scheme for high-friction surface systems to be run by theBritish Board of Agriment on behalf of Highway Authorities including the Highways Agency. The use of these tests should allow innovation and development of high-friction surface systems whilst ensuring that there is a reasonable assurance that any products certified in line with results from these tests will work effectively with the expected durability.