Abstract
The assessment of cement partially replaced with calcium carbide waste pow-der, CCWP and bamboo leaf ash, BLA on the strength of concrete made with cement was investigated. Oxide composition analysis of CCWP and BLA con-firm their status as non-pozzolanic material rich in CaO component and poz-zolanic materials, respectively. Setting times, slump, compressive and micro-structure analysis tests were conducted on fresh and hardened concrete. Twen-ty-eight (28) and fifty-six (56) days peak compressive strength values of 13.23 N/mm2 and 15.97 N/mm2 respectively were obtained when 5% CCWP was mixed with 5% BLA plus 90% cement. Values comparable to 28 and 56 days peak compressive strength values of 13.03 N/mm2 and 15.07 N/mm2 respec-tively obtained when cement was only used as a binder. The use of CCWP and BLA in concrete will ensure economy in concrete production and a better way of disposing these wastes.
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