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Characterization of Bambara nut shell ash (BNSA) in concrete production

The goal of achieving concrete with adequate durability properties in terms of reduced susceptibility to alkali-silica and mechanical-strength behaviour has led to several high-performance materials development. While the use of Bambara nut shell ash in concrete is gaining acceptance in various appl...

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Main Authors: Uwadiegwu, Alaneme George, Michael, Mbadike Elvis
Format: Article
Language:English
Published: Penerbit Universiti Kebangsaan Malaysia 2021
Online Access:http://journalarticle.ukm.my/18768/1/21.pdf
http://journalarticle.ukm.my/18768/
https://www.ukm.my/jkukm/volume-333-2021/
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spelling my-ukm.journal.187682022-06-10T01:47:36Z http://journalarticle.ukm.my/18768/ Characterization of Bambara nut shell ash (BNSA) in concrete production Uwadiegwu, Alaneme George Michael, Mbadike Elvis The goal of achieving concrete with adequate durability properties in terms of reduced susceptibility to alkali-silica and mechanical-strength behaviour has led to several high-performance materials development. While the use of Bambara nut shell ash in concrete is gaining acceptance in various applications, the mineralogical composition of such by-product materials cannot be easily controlled as a manufactured pozzolan. In this research work, the characterization and use of BNSA in concrete production was investigated. A mix proportion of 1:3:6 with water cement ratio of 0.55 were used. The percentage replacement of cement with BNSA from 0-40%. Concrete cubes of 150mm × 150mm × 150mm of OPC/BNSA were cast and cured at 3, 7, 28, 60 and 90 days respectively. At the end of each period of hydration, three replicate concrete samples for each period of hydration were crushed and their average comprehensive strength recorded. The result for the compressive strength test indicated rise in percentage difference as the BNSA replacement ratio increases from 5% to 40% with a value of 20.69% to 46.53% respectively. The concrete density response showed slight increment in percentage difference with a value of 0.85% to 3.47% for BNSA replacement ratio of 5% to 40% respectively. The Poisson ratio test results obtained indicates percentage difference increase as the BNSA ratio increases from 5% to 40% with a value of 5.17% to 11.14% respectively. Furthermore, the young’s modulus of elasticity results obtained showed percentage difference rise from 9.4% to 14.17% as BNSA ratio increases from 10.81% to 29.412% as BNSA replacement ratio increases from 5% to 40% respectively. The results indicate satisfactory performance at 5% replacement. Penerbit Universiti Kebangsaan Malaysia 2021 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/18768/1/21.pdf Uwadiegwu, Alaneme George and Michael, Mbadike Elvis (2021) Characterization of Bambara nut shell ash (BNSA) in concrete production. Jurnal Kejuruteraan, 33 (3). pp. 633-646. ISSN 0128-0198 https://www.ukm.my/jkukm/volume-333-2021/
institution Universiti Kebangsaan Malaysia
building Tun Sri Lanang Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Kebangsaan Malaysia
content_source UKM Journal Article Repository
url_provider http://journalarticle.ukm.my/
language English
description The goal of achieving concrete with adequate durability properties in terms of reduced susceptibility to alkali-silica and mechanical-strength behaviour has led to several high-performance materials development. While the use of Bambara nut shell ash in concrete is gaining acceptance in various applications, the mineralogical composition of such by-product materials cannot be easily controlled as a manufactured pozzolan. In this research work, the characterization and use of BNSA in concrete production was investigated. A mix proportion of 1:3:6 with water cement ratio of 0.55 were used. The percentage replacement of cement with BNSA from 0-40%. Concrete cubes of 150mm × 150mm × 150mm of OPC/BNSA were cast and cured at 3, 7, 28, 60 and 90 days respectively. At the end of each period of hydration, three replicate concrete samples for each period of hydration were crushed and their average comprehensive strength recorded. The result for the compressive strength test indicated rise in percentage difference as the BNSA replacement ratio increases from 5% to 40% with a value of 20.69% to 46.53% respectively. The concrete density response showed slight increment in percentage difference with a value of 0.85% to 3.47% for BNSA replacement ratio of 5% to 40% respectively. The Poisson ratio test results obtained indicates percentage difference increase as the BNSA ratio increases from 5% to 40% with a value of 5.17% to 11.14% respectively. Furthermore, the young’s modulus of elasticity results obtained showed percentage difference rise from 9.4% to 14.17% as BNSA ratio increases from 10.81% to 29.412% as BNSA replacement ratio increases from 5% to 40% respectively. The results indicate satisfactory performance at 5% replacement.
format Article
author Uwadiegwu, Alaneme George
Michael, Mbadike Elvis
spellingShingle Uwadiegwu, Alaneme George
Michael, Mbadike Elvis
Characterization of Bambara nut shell ash (BNSA) in concrete production
author_facet Uwadiegwu, Alaneme George
Michael, Mbadike Elvis
author_sort Uwadiegwu, Alaneme George
title Characterization of Bambara nut shell ash (BNSA) in concrete production
title_short Characterization of Bambara nut shell ash (BNSA) in concrete production
title_full Characterization of Bambara nut shell ash (BNSA) in concrete production
title_fullStr Characterization of Bambara nut shell ash (BNSA) in concrete production
title_full_unstemmed Characterization of Bambara nut shell ash (BNSA) in concrete production
title_sort characterization of bambara nut shell ash (bnsa) in concrete production
publisher Penerbit Universiti Kebangsaan Malaysia
publishDate 2021
url http://journalarticle.ukm.my/18768/1/21.pdf
http://journalarticle.ukm.my/18768/
https://www.ukm.my/jkukm/volume-333-2021/
_version_ 1735387664743399424
score 13.211869

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