Name: Prof. Jackson Wachira Muthengia
Address: P. O. Box 6 - 60100, Embui, Kenya
E-mail: registrar_are@embuni.ac.ke or mundu1977@gmail.com
Position: Registrar (Academics, Research & Extension)
Academic Qualification
2009: Ph.D in Cement and Concrete Technology, Kenyatta University Dissertation: Effect of Selected Media on Novel Portland Pozzolana Cement
2003: Master of Science in Chemistry, Kenyatta University Dissertation: Low Cost Pozzolana Based Cement from Industrial and Agricultural Waste Materials
2000: Bachelor of Education (Science), First Class Honors, Kenyatta University.
Current Research Area and Interests
Cement and Concrete Technology:
Developing pozzolanic materials and their chemical and physical performance characterization.
Soil Chemistry:
Calcium alumino silicate (natural and laboratory made - zeolites), beneficiation of selected minerals – Iron and Titanium ores
Gasification: Development of gasification technology
Adsorption and Kinetic Chemistry:
Removal of hazardous material from their solution, kinetics of adsorption and enhancement of adsorbents.
1. Mwangi Wanjiku, K., Muthengia, J. W., Ogunah, J., Mutitu, D. K., Kinuthia, J., Mwirichia, R., ... & Musyoki Munyao, D. (2022). Effects of Lysinibacillus sphaericus on Physicomechanical and Chemical Performance of OPC Blended with Natural Tuff and Pulverized Fly Ash. Advances in Materials Science and Engineering, 2022.
2. Musyoki, D. M., Muthengia, J. W., Ogunah, J., Mutitu, D. K., Kinuthia, J., Mwirichia, R., ... & Genson, M.(2022). Effect of Immobilizing Bacillus megaterium on the Compressive Strength and Water Absorption of Mortar. Journal of Chemistry, 2022.
3. Mutitu, D. K., Muthengia, J. W., Mwirichia, R., Thiong’o, J. K., Mulwa, M. O., & Genson, M. (2021). Microbial effect on water sorptivity and sulphate ingress by Bacillus megaterium on mortars prepared using Portland Pozzolana cement. Journal of Applied Microbiology, 131(2), 528-542.
4. Ngari, R. W., Thiong'o, J. K.,Muthengia, J. W., Muriithi, G., & Mutitu, D. K. (2021). Bioremediation of mortar made from Ordinary Portland Cement degraded by Thiobacillus thioparus using Bacillus flexus. Heliyon, 7(6), e07215.
5. Munyao, O. M., Thiong’o, J. K., Muthengia, J. W., Mutitu, D. K., Mwirichia, R., Muriithi, G. and Marangu, J. M. (2020)Study on the Effect of Thiobacillus intermedius Bacteria on the Physico-Mechanical Properties of Mortars of Ordinary Portland Cement, Heliyon, Volume 6, Issue 1, January 2020, e03232 https://doi.org/10.1016/j.heliyon.2020.e03232
6. Kugeria, P. M., Mwangi, I. W., MMuthengia, J. W. and Njoroge, P. W. (2019) Monitoring the Extraction of Copper from Chicken Dung Leachate Using an Aluminium Electrode as Indicator, Heliyon, 5 (2019) https://doi.org/10.1016/j.heliyon.2019.e02921
7. Mutitu, D. K., Muthengia, J. W., Mwirichia, R., Thiong’o, Munyao, O. M. and Muriithi, G. (2019) Influence of Lysinibacillus Sphaericus on Compressive Strength and Water Sorptivity in Microbial Cement Mortar, Heliyon, 5 (2019) e02881, https://doi.org/10.1016/j.heliyon.2019.e02881
8. Kariuki, S. W., Muthengia, J. W., Kawira, M. and Murithi, G. L. (2019)Characterisation of Prototype Formulated Particleboards from Agroindustrial Lignocellulose Biomass Bonded with Chemically Modified Cassave Peel Starch, Advances in Materials Science and Engineering, Volume 2019, Article ID 1615629, 15 pages, https://doi.org/10.1155/2019/1615629
9. Kariuki, S. W., Muthengia, J. W., Kawira, M. and Murithi, G. (2019) Formaldehyde Use and Alternative Biobased Binders for Particleboard Formulation: A Review, Journal of Chemistry, Volume 2019, Article ID 5256897, 12 pages, https://doi.org/10.1155/2019/5256897
10. Nalobile, P., Muthengia, J. W., Thiongó J. K. and Marangu, J. M. (2019) Pyroprocessing and the Optimum Mix Ratio of Rice Husks, Brocken and Spent Bleaching Earth to Make Pozzolanic Cement, Heliyon, Volume 5, Issue 9, Article e02443, https://doi.org/10.1016/j.heliyon.2019.e02443
11. Wachira, J. M. and Marangu, J. M. (2019)Chloride Diffusivity in Blended Cement Made from Selected Industrial and Agrowastes Advances in Materials Science and Engineering, Volume 2019, Article ID 2814320, 7 pages, https://doi.org/10.1155/2019/2814320
12. Wachira, J. M. Thiongó J. K., Marangu, J. M. and Murithi L. G. (2019) Physicochemical Performance of Portland – Rice Husk Ash-Calcined Clay – Dried Acetylene Lime Sludge Cement in Sulphate and Chloride Media, Advances in Materials Science and Engineering, Vol. 2019, https://doi.org/10.1155/2019/5618743
13. Wachira, J. M. (2019) Effects of Chlorides on Corrosion of Simulated Reinforced Blended Cement Mortars, International Journal of Corrosion, Vol. 2019, https://doi.org/10.1155/2019/2123547
1. 4th – 7th November, 2014, 1st Dedan Kimathi University of Technology Conference
2. 15th – 18th October, 2012, 7Th Kenya Chemical Society International Conference, Held at Maseno University.
3. 28th April, 2012 – The Kenya Chemical Society Workshop Held at Jomo Kenyatta University of Agriculture and Technology, Nairobi
4. 14th – 15th April, 2012 – Research Methodology Workshop of the Association of African Universities (AAU) – EASRN of Tertiary Institution Against The HIV/AIDS Pandemic, Held at Kenyatta University, Nairobi
5. 10th - 14th August, 2010 – 1St East African Regional Scientific Conference held at Kenyatta University, Nairobi
6. 25th April, 2009 - The Kenya Chemical Society Workshop Held at University of Nairobi