A material formed from recycled asphalt and construction material and pulverised fuel ash

摘要

A hydraulically bound material for a roadway is made from separated components of: (a) recycled asphalt (asphalt arisings); (b) crushed brick and block, (c) crushed concrete arisings, and (d) additional hydraulic binder containing pulverised fuel ash. The mixture has an asphalt arisings content in the range 10% to 30%, the additional hydraulic binder content in the range 3% to 10% and either the crushed concrete content or the crushed brick and block in the range 30% to 50%. The material is mixed with moisture, from 6% to 14%, and compacted to form a roadway. The hydraulic binder may also comprise ferrocrete.