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PIARC (World Road Association), founded in 1909 and comprising 125 member governments from all over the world, is the global forum for exchange of knowledge and experience on roads, road transport policies and practices. With consultative status to the Economic and Social Council of the United Nations, the Association is contributing to a stable and sustainable global development of the road and transport sector.

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Term of the Road Dictionary

exposure of surface aggregate

Language : PIARC Road Dictionary / English
Theme : Roads Construction Rigid Pavements
Definition : Antiskidding treatment removing a thin layer of mortar and leaving a mosaic of aggregates at the surface of a newly laid concrete pavement. Note: in the chemical process it consists in spraying a retarding agent on the concrete and then to cover it with a polyethylene sheet, which is followed the next day by dry or wet brushing of the surface.

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