This paper presents the production of blended cement, based on the intergrinding of Portland cement and pozzolanic materials such as phyllite. slate, and shale. Portland cement was replaced with pozzolana upto 25% and the effect on compressive strength and other properties were studied. Maximum compressive strength of II ~ 150 PSI as compared to 5,800 PSI of ordinary Portland cement was obtained. Mortar (1:3 ratIo) based on hIgh performance cement demonstrated good strength (upto 5,400 PSI) as compared to 4,350 PSI ofOPC.
M FAISAL ,M Z CHUGHTAI ,S A KHAN ,
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