STONE CONCRETE PAVING INSTALLATION
Concrete base should be minimum 20mpa strength . Screed Bed . Thickness . The minimum bed thickness should be 20mm. (This could be around 15mm if a latex additive is used.) The maximum thickness should be 60mm before some form of metal reinforcement needs to be installed into the bed. Mix Ratio . Screed beds should be a ratio of • 34 parts washed sand • 1 part cement or as per ...