Journal Published Online: 01 May 1995
Volume 23, Issue 3

Optimization of Lime Content for Fly Ash

CODEN: JTEVAB

Abstract

Abundant quantities of fly ash have been produced by thermal power plants situated all over the world. Many applications of fly ash depend upon its pozzolanic reactivity. This reactivity depends upon many factors, including lime content. Many fly ashes show marked improvement with the addition of lime. However, for every fly ash, there is an optimum lime content for its maximum reactivity. There is no well-established simple test to determine the optimum lime content. In this paper an attempt is made to use a simple physical and physico chemical test to determine the optimum lime content. The principle behind the use of a pH test, liquid limit test, and free swell index test to determine the optimum lime content has been explained. All the methods predict nearly the same optimum lime content and correlate well with that determined by the strength test.

Author Information

Sivapullaiah, PV
Indian Institute of Science, Bangalore, India
Prashanth, JP
Indian Institute of Science, Bangalore, India
Sridharan, A
Indian Institute of Science, Bangalore, India
Pages: 6
Price: $25.00
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Details
Stock #: JTE10414J
ISSN: 0090-3973
DOI: 10.1520/JTE10414J