Strength development, deformation properties and mix design of pulverized fuel ash concrete

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, w...

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Bibliographic Details
Published in:Structural survey 1995-03, Vol.13 (1), p.7-11
Main Authors: Balendran, R.V, Pang, H.W
Format: Article
Language:English
Subjects:
Building materials
Carbon
Cement hydration
Coal
Concrete
Concrete construction
Curing
Design engineering
Heat
Influence
Power plants
Studies
Temperature
Water
Workloads
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Summary: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.
ISSN:0263-080X
2398-4708
1758-6844
2398-4716
DOI:10.1108/02630809510089810