Good-quality virgin aggregates for concrete are becoming harder to obtain easily in some areas of New Zealand, especially Auckland.
This report discusses the results of an investigation into the properties of concrete made using recycled concrete construction rubble as concrete aggregate. It also describes a field trial carried out using recycled construction rubble concrete.
The aim of the work is to see if it would be possible to replace virgin aggregate with recycled rubble to reduce the drain on premium aggregate supplies. It concludes that the use of recycled concrete construction rubble as coarse aggregate for concrete is a viable proposition.