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State of the art for fly ash uses in concrete

โœ Scribed by G.M. Idorn; K.R. Henriksen


Publisher
Elsevier Science
Year
1984
Tongue
English
Weight
519 KB
Volume
14
Category
Article
ISSN
0008-8846

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The influence of fly ash on the basic characteristics of lightweight and ordinary concretes subject to heat treatment has been studied. The use of fly ash increases the strength of lightweight concretes, reduces cement consumption by 15 to 25%, and permits a decrease in concrete mean density (by 100

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It is a well known fact that the reaction of fly ash in concrete, only starts significantly after one or more weeks. Until this period the fly ash behaves more or less as an inert material, which only serves as a precipitation nucleus for Ca(OH) 2 and C-S-H gel originating from the cement hydration.

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## Abstract An experiment was conducted for two years in northwest India to explore the feasibility of using coal fly ash for reclamation of waterlogged sodic soils and its resultant effects on plant growth in padiโ€“wheat rotation. The initial pH, electrical conductivity, exchangeable sodium percent

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A five-stage sequential leaching procedure, developed in this work, was successfully applied to fly ash samples collected at several emission sources. The solvent leaching experiments, together with solid phase examinations carried out by X-ray powder diffraction, provide information on the possible