154-159<span style="font-size:14.0pt;line-height:
115%;font-family:" times="" new="" roman";mso-fareast-font-family:"times="" roman";="" color:black;mso-ansi-language:en-in;mso-fareast-language:en-in;mso-bidi-language:="" hi"="" lang="EN-IN">Pozzolanic activity of fired clay bricks (Homra) was studied using hydrated
lime as an activator. Three different mixes of Homra/hydrated lime were
hydrated in a paste form for various time intervals up to 90 days. The
hydration characteristics of the hydrated pastes were followed by thermal
analysis (TGA and DTA) at various times of hydration. The results obtained from
thermal analysis of the formed hydrates were related as much as possible to the
pozzolanic activity as determined by chemical analysis. The results indicated
that Homra, as a waste product of clay bricks industry, can be used in the
production of low cost filled pozzolanic cements.</span