A Review of the Low-Speed Skidding Resistance of a Number of Concrete Roads Containing Various Aggregates

摘要

A review was made of the sideway force coefficient at 50 km/h and of the skidding resistance value of 23 concrete roads. All of the concrete mixes used contained natural sands but a few of the sands had a high limestone content. Only a few roads contained a coarse limestone aggregate and all of these roads were lightly trafficked. The report discusses the effect of traffic intensity, of the limestone content of the sand, of the grading of limestone coarse aggregate, of the degree of stone exposure and of the effect of the mix proportions. (Author)