Abrasion and skid resistance of recyclable fly ash concrete pavement made with limestone aggregate

The abrasion and subsequent skid resistance of recyclable concrete pavement using raveling tests with tire chains has been examined, since the abrasion of limestone aggregate-containing concrete pavements is of concern. The recyclable concrete was made by replacing 40% of the cement mass with fly ash concrete. Limestone rock fine and coarse aggregates were mixed in the concrete with a water/cementitious material ratio of 0.33 for early adequate strength. The test results show: (1) the abrasion wear of the recyclable concrete increases gradually with an increase of fly ash; (2) the skid resistance of the recyclable concrete is almost equal skid resistance to the concrete with siliceous aggregate.