Precast Concrete Footway Paving Slabs That Resist Vehicular Overrun

This paper presents research into the design of square precast concrete paving flags ranging in plan size between 600 mm and 300 mm square. A design method for these paving flags overrun by vehicles is presented. The method shows that the existing test procedure underestimates the paving flag strength and that their strength can be increased by increasing the subgrade CBR, subbase CBR, subbase thickness, tyre contact area, paving flag thickness and by reducing paving flag size.