Exposed aggregate concrete is a solution offered by Paviart to improve an access road, a driveway or the surrounding of a swimming pool. It is weather resistant and therefore ideal for outdoor use. The concrete rough effect is created by using coarse gravel mixed with cement. It is poured on a well-prepared flat surface, a retarder then is applied and the last stage consists in washing the cement with a pressure washer. The result is a gravel effect and its colour can be adapted to the requirements of the owner.