Strength Characteristics of Concrete Beams with Cement Partially Replaced by Uncalcined Soldier-Ant Mound Clay
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Date
2011-01-31
Authors
Ikponmwosa, E
Salau, M
Mustapha, S
Journal Title
Journal ISSN
Volume Title
Publisher
Macmillan Uganda Publishers Limited
Abstract
Various researchers in the recent past have investigated the pozzolanic properties of many waste materials like fly ash, electric arc furnace slag (a by-product of steel production), ground broken bottles, ashes produced from various agricultural waste such as palm oil waste, rice-husk ash, wheat straw ash, etc. No research findings have been reported on uncalcined soldier-ant mound clay (SAMC) as a pozzolana. It is therefore the aim and objective of this work to consider uncalcined soldier-ant mound clay as pozzolana. Eighty-four (84) beam specimens were cast, with seventy-two
having cement replaced with soldier-ant mound clay varying from 5% to 30% at 5% interval. A concrete mix ratio of 1:2:4 (Cement/SAMC: sand: granite) with 0.65 water/cement ratio was adopted for this investigation. Results indicate that the addition of SAMC in the mix produced concrete of lower density than normal concrete; increases the initial and final setting time of cement with increased workability. The density as well as the flexural strength of concrete decreased with increase in SAMC content. However, 5% SAMe content in the mix is considered optimum for improved
structural performance when compared with normal concrete.
Description
Conference Paper
Keywords
Concrete Slabs , Density , Flexural Strength , Crack Pattern
Citation
Ikponmwosa, E, Salau, M and Mustapha,S (2011) Strength Characteristics of Concrete Beams with Cement Partially Replaced by Uncalcined Soldier-Ant Mound Clay. Proceedings of the Second lnternational Conference on Advances in Engineering and Technology, Faculty of Technology, Makerere University, Uganda