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Semi-theoretical method for the assessment of reactivity of fly ashes

✍ Scribed by R.C. Sharma; N.K. Jain; S.N. Ghosh

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
198 KB
Volume
23
Category
Article
ISSN
0008-8846

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✦ Synopsis

Twenty five samples of Indian fly ashes of ASTM class F type have been investigated for correlating their reactivity with chemical and physical parameters.

Indian fly ashes contain relatively low amounts of soluble silica i.e. reactive silica and are of low pozzolanic character. An empirical equation has been derived for rapid estimation of reactivity of fly ashes with lime, taking into account the soluble silica content and fineness of fly ash. A correlation between Dhir's PPI index and LR values of the present fly ash samples has also been found.

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