Pavements Using Reclaimed Aggregates

Eco friendly construction techniques are gaining immense importance nowadays. Many innovations have come in pavement construction and design. The use of reclaimed aggregates in constructing pavements is one among them. Reclaimed aggregates come mainly from two sources - construction & demolition waste and asphalt pavements. The optimized use of reclaimed aggregates along with fresh aggregates helps decrease construction cost without compromising strength and durability. It also minimizes the use of virgin aggregate and helps decrease crude oil import for producing paving bitumen. Reclaimed material is first crushed and screened before using. Tests are then conducted to analyse its properties. Only those batches which satisfy standard conditions are used. Reclaimed aggregate pavements hence help pavement rehabilitation with minimum energy expenditure. This paper deals with the tests on reclaimed aggregate and their property study. The various sources and means of retrieving aggregate from reclaimed material are also dealt with.