Author(s): RILEM TC 165-SRM
Paper category : book
Book title: Sustainable Raw Materials - Construction and Demolition Waste - State-of-the-Art Report of RILEM TC 165-SRM
Editor(s): Ch. F. Hendriks and H. S. Pietersen
Publisher: RILEM Publications SARL
Publication year: 2000
Pages: 3 - 3
Total Pages: 1
Secondary building materials
By-products of industrial processes and construction an demolition wastes, which are reused to produce new building materials.
Primary building materials
Raw materials extracted from natural sources, as well as building products made from such materials.
Recycled asphalt aggregate
Old asphalt derived by breaking up old asphalt from roads by crushing or milling.
Recycled concrete aggregate
Recycled concrete aggregate derived by breaking up large pieces of concrete by crushing and sieving.
Recycled masonry aggregate
Recycled masonry (claybrick) aggregate, derived by breaking up masonry bricks (including its mortar) by crushing and sieving.
Recycled mixed aggregate
Produced by crushing C&D waste consisting of masonry and concrete, contains at least 45% by weight of crushed concrete.
Fraction separated from demolition wastes by screening prior to crushing.
Sand fraction separated from coarse granular material upon crushing and sieving of stony construction and demolition wastes. The grain size of this fraction generally ranges between 63 µm and 4 mm (0/4 fraction).
Wood released at the end of its original application. Old wood is often contaminated by paint remains, adhesives and preservatives that make it more difficult to reuse.
Plastics released at the end of the different original applications. Old plastic is often a mix of different types of plastics, used for different purposes.
Online publication: 2009-12-07
Publication type : full_text
Public price (Euros): 0.00