Advancements in Materials, Vol. 1, Issue 1, Dec  2017, Pages 25-39; DOI: 10.31058/j.am.2017.11003 10.31058/j.am.2017.11003

Effects of Gum Arabic Admixture on the Mechanical Strengths of Cement Paste and Concrete

Advancements in Materials, Vol. 1, Issue 1, Dec  2017, Pages 25-39.

DOI: 10.31058/j.am.2017.11003

Augustine Uchechukwu Elinwa 1* , Muhammad Abdullahi Hazzard 1

1 Civil Engineering Department, Abubakar Tafawa Balewa University, Bauchi, Bauchi State, Nigeria

Received: 22 November 2017; Accepted: 20 December 2017; Published: 4 January 2018

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Abstract

The evaluation of the mechanical strengths of gum Arabic concrete (GAC) have been carried out. This was done using dosage levels of GA, 0.00 % (control) to 1.00 % as admixture, cement content of 420 kg/m3, and water-cement ratio of 0.5, to produce cement pastes and concrete specimens that were cured for 90 days in water. Results on the soundness, compressive and flexural strengths showed positive indicators for the use of GA as an admixture. An optimum dosage of 0.50 % by weight of cement was achieved. Linear regression models of Natural Log and Square Root, best described the experimental data, and parameters of interest were very significant. Response surfaces were developed showing the various levels of interactions of compressive and flexural strengths with the mix parameters.

Keywords

Gum Arabic, Admixture, Soundness and Setting Times, Compressive and Flexural Strengths, Regression Models, Microstructure and Acid Resistance

Copyright

© 2017 by the authors. Licensee International Technology and Science Press Limited. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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