ABSTRACT
Asbestos-cement was the first FRC composite in modern times, and was used extensively as a cladding material, for roofmg and wall units as well as pipes. The asbestos fibres are made of natural crystalline fibrous minerals, consisting of bundles of filaments (sometimes known as fibrils), with individual filaments being as thin as 0.1 JLm or less. In the manufacture of the actual composite, the bundles tend to be split up during the processing procedure, though considerable portions of the reinforcement remain in the form of small fibre bundles.
