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- Title
Evaluation ofwaste perlite fines in the production of construction materials.
- Authors
Ray, A.; Sriravindrarajah, R.; Guerbois, J.-P.; Thomas, P.; Border, S.; Ray, H. N.; Haggman, J.; Joyce, P.
- Abstract
The use of supplementary cementitious materials (SCM) is a well established practice worldwide in the manufacture of Portland cement (PC)-based construction materials. While utilisation of industrial by-products has been successful, the potential of mining wastes is yet to receive adequate attention in the context of construction materials. In an expanded form perlite, which is a naturally occurring, hydrated volcanic siliceous glass, is an ideal material as a lightweight aggregate for use in a wide range of construction materials including concrete. The mining and processing of the grades of perlite required for the production of lightweight aggregate results in the creation of a fine grained waste which currently has no economic value. This paper reports preliminary data on the utilisation of waste perlite fines as a SCM in calcium silicate-based construction material and discusses the potential of this mining waste to reduce the environmental impact of the production of conventional cement-based construction materials.
- Subjects
PORTLAND cement; BUILDING material manufacturing; PERLITE; SILICA; CONCRETE; CALCIUM silicates
- Publication
Journal of Thermal Analysis & Calorimetry, 2007, Vol 88, Issue 1, p279
- ISSN
1388-6150
- Publication type
Article
- DOI
10.1007/s10973-006-8107-z