Future challenges lie in five key areas: future capacity requirements, economics of materials, balanced surface characteristics, safety and security, and sustainability.
Breaking up an old concrete pavement and reusing it as aggregate is a cost-effective option for reconstructing deteriorated pavements. Recycling eliminates disposal problems and tipping fees. In urban areas where landfill space is scarce, dumping concrete is difficult and costly. The cost of recycling concrete pavements only includes the cost of crushing. Costs for aggregate hauling and concrete disposal are eliminated.