Viability of using Corncob Ash as a Pozzolan in Concrete

Journal article


Kamau, J, Ahmed, A, Hirst, P and Kangwa, J (2016). Viability of using Corncob Ash as a Pozzolan in Concrete. International Journal of Science, Environment and Technology. 5 (6), pp. 4532-4544.
AuthorsKamau, J, Ahmed, A, Hirst, P and Kangwa, J
Abstract

Cement is the most utilised construction material, its global consumption only seconding that of water. Its demand has soared proportionately with the exponential rise in population to match required development. The heavily energy-intensive processes that are involved in its production contribute to about 7% (per cent) to 10% of the total global carbon dioxide (CO2) emissions, with potentially adverse environmental implications and are economically expensive. These processes, and those of the production of concrete consume heavily on natural resources such as sand, gravel, water, coal and crushed rock, the mining of which mars the environment. It is however possible, that energy and cost efficiency can be achieved by reducing on the amount of clinker, and in its place utilizing pozolanic materials that require less process heating and emit fewer levels of CO2. This study investigated the viability of corncob ash for use as a pozzolan in concrete. Tests were carried our by replacing cement by weight in concrete mixes with corncob ash at 5%, 7.5%, 10%, 15% and 20%steps at the point of need. The results were compared with a control specimen that was made with 100% cement (0% CCA). Durability was tested using the sulfate elongation test on specimens that were immersed in a 5% sodium sulfate (Na2SO4) solution. From the results, all replacements achieved impressive compressive strengths that were suitable for structural applications, while the sulfate elongation tests showed that CCA could be used in Na2SO4 aggressive environments with an advantage. The findings also showed good repeatability and highlighted the potential of CCA to be used as an effective pozzolan in concrete.

Keywordscorncob ash, , cementitious materials, maize cob ash, partial cement replacements; pozzolans; cementitious materials
Year2016
JournalInternational Journal of Science, Environment and Technology
Journal citation5 (6), pp. 4532-4544
PublisherScientific Research Forum
ISSN2277-663X
Publication dates
Print02 Dec 2016
Publication process dates
Deposited22 Aug 2017
Accepted15 Nov 2016
Accepted author manuscript
License
File Access Level
Open
Permalink -

https://openresearch.lsbu.ac.uk/item/87131

Download files


Accepted author manuscript
  • 314
    total views
  • 178
    total downloads
  • 3
    views this month
  • 0
    downloads this month

Export as

Related outputs

Grounded Theory and Social Psychology Approach to Investigating the Formation of Construction Workers’ Unsafe Behaviour
Han, Y., Li, X., Feng, Z., Jin, R., Kangwa, J. and Ebohon, O.J. (2022). Grounded Theory and Social Psychology Approach to Investigating the Formation of Construction Workers’ Unsafe Behaviour. Computational Intelligence and Neuroscience. 2022, pp. 1-16. https://doi.org/10.1155/2022/3581563
Bibliometric analysis for reviewing published studies in the built environment
Wang, L., Jin, R. and Kangwa, J. (2021). Bibliometric analysis for reviewing published studies in the built environment. in: Secondary Research Methods in the Built Environment Oxon Routledge (Taylor & Francis Group).
Modern Methods Of Construction A Technique In Achieving Affordable Housing In Nigeria
Momoh, J., Ige, O., Seidu, R., Kangwa, J. and Young, B. (2021). Modern Methods Of Construction A Technique In Achieving Affordable Housing In Nigeria. IDoBE International Conference, London South Bank University, London. London 22 - 23 Nov 2021 London South Bank University.
Covid Uncertainties and Modern Methods of Construction (MMC): What Effect on the UK Housing Industry.
Young, B.E, Seidu, R.D, Fong, D., Hasan, H and Kangwa, J. (2021). Covid Uncertainties and Modern Methods of Construction (MMC): What Effect on the UK Housing Industry. Proceedings of Centre for the Integrated Delivery of the Built Environment (IDoBE) on Uncertainties in the Built Environment: How can we build a resilient future in the new normal?. . LSBU, London. UK 21 - 23 Nov 2021
Complexities Inherent in Mega Infrastructure: The Challenges of Accurate Estimating.
Seidu, R.D, Ebohon, O., Kangwa, J., Ofori, G. and Young, B. (2021). Complexities Inherent in Mega Infrastructure: The Challenges of Accurate Estimating. Proceedings of Centre for the Integrated Delivery of the Built Environment (IDoBE) on Uncertainties in the Built Environment: How can we build a resilient future in the new normal?. . LSBU, London. UK 21 - 23 Nov 2021
The development of SUCCEED: urban sustainability assessment tool for developing countries with focus on Nigeria
Momoh, J., Kangwa, J., Udeaja, C., Jin, R. and Seidu, D. R. (2021). The development of SUCCEED: urban sustainability assessment tool for developing countries with focus on Nigeria. International Journal of Building Pathology and Adaptation. pp. 2398-4708. https://doi.org/10.1108/IJBPA-04-2021-0049
A Critical Analysis Of Collaborative And Disruptive Digital-Driven Built Environment Education
Jin, R., Adamu, Z., Chohan, N. and Kangwa, J. (2021). A Critical Analysis Of Collaborative And Disruptive Digital-Driven Built Environment Education. Association of Researchers in Construction Management (ARCOM). Manchester 05 - 07 Sep 2016
Following the trail: a covariance plotting of the crippling effect of COVID-19 on small and medium sized -SMEs firms in the UK’s Construction Industry
Seidu, R.D, Young, B.E, Kangwa, J., Ebohon, O.J and Ige, O. (2021). Following the trail: a covariance plotting of the crippling effect of COVID-19 on small and medium sized -SMEs firms in the UK’s Construction Industry . 4th European Conference on Industrial Engineering and Operations Management. Rome, Italy 02 - 05 Aug 2021
Immersive technology-driven investigations on influence factors of cognitive load incurred in construction site hazard recognition, analysis and decision making
Han, Y., Diao Y., Yin Z., Jin, R., Kangwa, J. and Ebohon, O. (2021). Immersive technology-driven investigations on influence factors of cognitive load incurred in construction site hazard recognition, analysis and decision making. Advanced Engineering Informatics. 48, p. 101298. https://doi.org/10.1016/j.aei.2021.101298
Sustainability Assessment of Urban Spaces in Developing Countries: The Nigerian Case
Momoh, J., Jin, R., Kangwa, J. and Seidu, R. (2020). Sustainability Assessment of Urban Spaces in Developing Countries: The Nigerian Case. 2020 International Conference on Construction Digitalisation for Sustainable Development - Transforming through Innovation (CDSD 2020). Hanoi/ Vietnam 24 - 25 Nov 2020
Potential of Anthill Soil as a Pozzolan in Concrete
Kamau, J., Ahmed, A. and Kangwa, J. (2020). Potential of Anthill Soil as a Pozzolan in Concrete. International Journal of Materials Science and Engineering. 8 (3), pp. 93-98. https://doi.org/10.17706/ijmse.2020.8.3.58-73.
In-vivo Barretts esophagus digital pathology stage classification through feature enhancement of confocal laser endomicroscopy
Ghatwary, N, Ahmed, A, Grisan, E, Jalab, H, Bidaut, L and Ye, X (2019). In-vivo Barretts esophagus digital pathology stage classification through feature enhancement of confocal laser endomicroscopy. J Med Imaging (Bellingham). 6 (1). https://doi.org/https://www.doi.org/10.1117/1.JMI.6.1.014502
Perceptibility of barriers and threats to successful and sustainable restoration of Heritage Buildings. A perspective of UK’s heritage practitioners
Kangwa, J., Ebohon, O., Haupt, T. and Olubodun, F. (2019). Perceptibility of barriers and threats to successful and sustainable restoration of Heritage Buildings. A perspective of UK’s heritage practitioners. The 13th Built Environment Conference. Durban, South Africa 02 - 03 Sep 2019 Association of Schools of Construction of Southern Africa. https://doi.org/978-0-6399855-1-0
Innovative environmentally sustainable concrete: Explaining the low uptake in UK construction activities
Ebohon, O., Kangwa, J. and Perinpanathan, S. (2019). Innovative environmentally sustainable concrete: Explaining the low uptake in UK construction activities. The 13th Built Environment Conference. Durban, South Africa 02 - 03 Sep 2019 Association of Schools of Construction of Southern Africa.
Exploring the perceptions of construction SMEs on appropriate supporting policies for growth and development by the Qatari government for effective participation in infrastructure procurement and delivery for the 2022 World Cup
Kangwa, J and Ebohon, O J (2019). Exploring the perceptions of construction SMEs on appropriate supporting policies for growth and development by the Qatari government for effective participation in infrastructure procurement and delivery for the 2022 World Cup. ASOCSA 12th Built Environment Conference. Durban, South Africa 05 - 07 Aug 2018 Association of Schools of Construction of Southern Africa.
Where are the Barriers to Sustainable Construction in Africa?Key Note Speech
Kangwa, J (2019). Where are the Barriers to Sustainable Construction in Africa?Key Note Speech. ASOCSA 12th Built Environment Conference. Durban, South Africa 05 - 07 Aug 2018
Suitability of Anthill Soil as a Supplementary Cementitious Material
Kangwa, J, Kamau, J, Ahmed, A and Hirst, P (2018). Suitability of Anthill Soil as a Supplementary Cementitious Material. European Journal of Engineering Research and Science -EJERS. 3 (7), pp. 5-11. https://doi.org/10.24018/ejers.2018.3.7.785
Influence of Rice Husk Ash Density on the workability and strength of structural concrete
Kangwa, J, Kamau, J, Ahmed, A, Hirst, P and Hyndman, F (2017). Influence of Rice Husk Ash Density on the workability and strength of structural concrete. European Journal of Engineering Research and Science. 2 (3), pp. 36-43. https://doi.org/10.24018/ejers.2017.2.3.292
Permeability of Corncob Ash, Anthill soils and Rice husk replaced concrete
Kamau, J, Ahmed, A, Hirst, P and Kangwa, J (2017). Permeability of Corncob Ash, Anthill soils and Rice husk replaced concrete. International Journal of Science, Environment and Technology. 6 (2), pp. 1299-1308.
Performance of Anthill Soil Replaced Concrete in Sulfate Solutions
Kamau, J, Ahmed, A and Hirst, P (2017). Performance of Anthill Soil Replaced Concrete in Sulfate Solutions. EJERS, European Journal of Engineering Research and Science. 2 (5), pp. 50-55. https://doi.org/10.24018/ejers.2017.2.5.351
Performance of Class F Pulverised Fuel Ash and Ground Granulated Blast Furnace Slag in Ternary Concrete Mixes
Kamau, J, Ahmed, A, Hirst, P and Kangwa, J (2017). Performance of Class F Pulverised Fuel Ash and Ground Granulated Blast Furnace Slag in Ternary Concrete Mixes. EJERS, European Journal of Engineering Research and Science. 2 (6), pp. 36-41. https://doi.org/10.24018/ejers.2017.2.6.363
Suitability of Corncob Ash as a supplementary Cementitious Material
Kamau, J, Ahmed, A, Hirst, P and Kangwa, J (2016). Suitability of Corncob Ash as a supplementary Cementitious Material. International Journal of Materials Science and Engineering. 4 (4), pp. 215-228. https://doi.org/10.17706/ijmse.2016.4.4.215-228