Abstract
Discusses the properties of pulverized fuel ash (PFA) concrete both
in its fresh and hardened states, with emphasis on aspects which are
relevant to warmer localities such as Hong Kong. Sufficient research
evidence, including surveys of existing structures, have been reviewed
to conclude that PFA, when used correctly and properly, has the
potential to enhance the performance of good concrete. Analyses the
contribution of PFA in the enhanced performance of concrete. Cautions
that much of the enhanced performance depends on the microstructure of
the concrete, which in turn depends significantly on a proper mix
design, with or without PFA. Proposes that water reduction is a
desirable property of PFA. However, considers it possible to accommodate
PFA characteristics in the mix design and by the use of plasticizer to
produce good quality PFA concrete. Briefly discusses the characteristics
of Hong Kong locally produced PFA.
Subject
Building and Construction,Civil and Structural Engineering
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Cited by
1 articles.
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