Materials
Recycled and Secondary Aggregates (RSA) can be used in a range of construction materials. The opportunities for their use are provided in the following pages:
- Concrete is a common construction material consisting of coarse and fine aggregates mixed with cement and water. There are many different types, classes, specifications and uses for concrete. The opportunities for use of RSA in concrete applications are detailed within this section.
- Bituminous materials are principally composed of coarse aggregate and fine aggregate filler; aggregates typically contribute 90-95% of the mass of bituminous material.The opportunities for use of RSA in bituminous applications are discussed within this section.
- Hydraulically Bound materials (HBM) are simply materials which set and harden with the addition a binder material and water. HBM have potential to be used in a range of paving and non-paving applications, these opportunities are discussed within this section.
- Unbound materials collectively comprise a vast array of different materials, which may range in size from fine grains less than a millimetre in diameter up to stony material several centimetres in diameter. The opportunities for use of RSA in unbound material applications are discussed within this section.
