Noble International Journal of Scientific Research


Online ISSN: 2521-0246 | Print ISSN: 2523-0573

Archives

    Volume 2 Number 9 September 2018

Potential Use of Coal Bottom Ash as Partial Replacement of Cement in Concrete

Pages: 60-70
Authors: Aliyu Usman, Nura Bala, Ashiru Mohammed, Muhammadu Bello Ibrahim, Kabir Isma’il Wurgi
Abstract
This project investigates the potential use of Coal Bottom Ash (CBA) as partial replacement of cement in concrete. The CBA used in this research work was obtained from Obajana cement plant in Kogi state of Nigeria, which was grinded and passed through 75µmm BS sieve. The result of the chemical composition of CBA shows that, the CBA falls within the limit of class C pozzolana. The result of AIV of coarse aggregate was found to be 18.9%, and that of ACV was found to be 18.6%. The specific gravity of both fine and coarse aggregate was found to be 2.65 respectively. The consistency of the cement-CBA paste increase with an increase of the CBA content. The compressive strength test at 28days curing for 0%, 5%, and 10% CBA replacement levels attain the target compressive strength (25N/mm2), while that of 15%, 20%, and 25% CBA replacement levels didn’t attain. The strength value at 5% CBA replacement level increased over that of the control before decreasing at the other higher replacement levels. The study however, shows that 5% replacement levels produce the optimum strength, and the strength of concrete increases with ages of curing. The SEM analysis test indicates that CBA act as filler and occupy the voids between the aggregates, thereby making the concrete more compact and having higher densities.

Aim & Scope Instructions for Authors Editorial Board Indexed/abstracted in Submit Manuscripts Archive

Call for Papers

Call for Quality PapersAuthors are invited to submit their quality and original research manuscripts/articles for possible publication in the following journals. Following journals are published by Noble Academic Publisher (NAP). Noble Internati...

Read More

Publication Ethics

NAP has certain standard of publication ethics to ensure the quality of publications and originality of contributions. We only consider those contributions that are unpublished, original and not copied right by oth...

Read More

Article Processing Charge

Article Processing Charges [APC]As with any other Open Access publishing company, with NAP there is no paper, no mailing, no subscriptions, and no restriction against using and sharing our journals. But we do have to pay for maintaining pub...

Read More