Cement Material from Calcium Carbide Residue and Broken Bricks
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Date
2005
Authors
Muthakia, G. K.
Karanja, J.
Muthengia, W.
Journal Title
Journal ISSN
Volume Title
Publisher
Faculty of Science Kenyatta University
Abstract
Broken bricks (BB) with dried calcium carbide residue (DCCR) is a potential pozzolana-lime
cement. The BB contains mainly Si02, Al203 and Fe203 while DCCR contain Ca(OHh, the
major components for pozzolana-lime cements. The BB-DCCR mixture met the ASTM C 593
requirements for use of pozzolana with lime. Rice husk ash (RHA) was used as control
pozzolana in this study. BB-DCCRIcommercial hydrated lime (CHL) mixes developed higher
compressive strength than RHA- DCCRICHL mixes at the 7th and 28th day of curing. BBDCCR
mix exhibited a higher compressive strength than a BB-CHL mix. At the 28th day of
curing, the BB-DCCR and BB-CHL mortar acquired a compressive strength of up to 15.4 and
13.2 MFa respectively. Thermal activation of poorly performing BB improved pozzolanic
activity. The setting time of a workable paste of the BB-DCCR and BB-CHL met Kenya
standard 02 1263 requirements for Portland pozzolana cements (PPC). The results of
compressive strength suggested that the mixture of DCCR and BB could be used as cementing
material.
Description
Research Article
Keywords
Pozzolana, Broken bricks, Calcium carbide residue
Citation
East African Journal of Physical Sciences 6( I): 13-19 (2005)