In the old days we used to make roads from concrete – but no more. Why? Firstly asphalt is much cheaper than concrete and can be laid a lot quicker. Concrete needs to cure but asphalt can be driven on almost immediately. This also makes the repair process extremely fast and cost effective. Asphalt also responds better to harsh weather conditions making roads less slippery and less likely to “plane” in the wet therefore safer. It’s also able to expand and contract in the heat. It does not need expansion joints like concrete does as asphalt is more likely to just bend rather than break. Both surfaces are subject to cracking and rutting but asphalt is easier to fix and maintain and will stay looking better for longer.
12 March 2015