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Concrete recycling Uses of recycled concrete Smaller pieces of concrete are used as gravel for new construction projects Sub-base gravel is laid down as the lowest layer in a road, with fresh concrete or asphalt poured over it The US Federal Highway Administration may use techniques such as these to build new highways from the materials of old highways Crushed recycled concrete can also be used as the dry ....
Road construction Wherefore Art Thou Aggregate Resources for Highways? by Richard C Meininger and Steven J Stokowski At a recent workshop, experts tackled the problems of source depletion and future supply issues related to this critical construction material...
Construction aggregate Aggregates form the major portion of the pavement structure Bear stresses occurring on the roads and have to resist wear due to abrasive action of traffic Aggregates are also used in flexible as well as in rigid pavements Therefore, the properties of aggregates are of considerable importance to highway The aggregates to be used in road construction, particularly...