GEOTECHNICAL PROPERTIES OF LIME AND BAMBOO STEM ASH STABILIZED SOILS FOR ROAD CONSTRUCTION IN SOUTH-WESTERN NIGERIA
Keywords:Bamboo Stem Ash, Chemical analysis, lime, strength properties
The state of any road layer today and in the future is primarily dictated by the soil beneath its foundation, and knowing enough about the Engineering qualities of soil and the sub-soil condition is crucial in foundation design. This research looked at the geotechnical qualities of soils stabilized with Lime-and-Bamboo Stem Ash (BSA) mixture. Soil samples were obtained from each state in the study area and transported to the laboratory, where they were stabilized with 6% lime and 0 to 10% BSA. California Bearing Ratio (CBR), Compaction, Unconfined Compressive Strength (UCS), and Triaxial tests were performed on the combined samples. The local additive was also subjected to a chemical examination. The results showed that BSA additive has a high SiO2 content. As BSA content increases, all strength properties (Maximum Dry Density (MDD), CBR, UCS, Cohesion (C), Shear strength (S) and Angle of Internal Friction (ϕ)) increase and reached peak at 6% BSA content, thereafter decrease; however, Optimum Moisture Content (OMC) decreases. The peak values are 2475 kg/m3, 58.53%, 45.32%, 638.9 kN/m2, 137 kN/m2, 290.57 kN/m2 and 41° for MDD, soaked CBR, unsoaked CBR, UCS, C, S and Ø respectively. After going through the process, almost all of the unsuitable soil samples became suitable for use as pavement layer materials. As a result, a mixture of 6% lime and 6% BSA content is strongly recommended for soil improvement, particularly for road construction in South-Western Nigeria.
Adetoro, A. E., and Adam, J. O. (2015a). Analysis of Influences of Locally Available Additives on Geotechnical Properties of Ekiti State Soil, Southwestern, Nigeria, International Journal of Innovative Research in Science, Engineering and Technology, Vol. 4 No. 8, pp 7093-7099.
Adetoro, A. E., and Adam, J. O. (2015b). Comparative Analyses of Ekiti State Soil Stabilized with different Additives, Asian Journal of Science and Technology, Vol. 6 No. 12, pp 2054-2058.
Amadi, A. (2013). Evaluation of Changes in Index Properties of Lateritic Soil Stabilized with Fly Ash, Leonardo Electronic Journal of Practices and Technologies, Vol. 2010 No. 17, pp 69-78. http://lejpt.academicdirect.org.
Amu, O.O., Ogunniyi, S. A. and Oladeji, O. O. (2011a). Geotechnical Properties of Lateritic Soil Stabilized with Sugarcane Straw. American Journal of Scientific and Industrial Research, Vol. 2 No. 2, pp 323-339.
Amu, O.O. Bamisaye, O. and Komolafe, I. A. (2011b). The Suitability and Lime Stabilization Requirement of some Lateritic Soil Samples as Pavement. International Journal of Pure Science and Technology, Vol. 2 No. 1, pp 29-46.
Amu, O.O., Owokade, O. S. and Shitan, O.I. (2011c). Potential of Coconut Shell and Husk Ash on the Geotechnical Properties of Lateritic Soils for Road Works, International Journal of Engineering and Technology, Vol. 3 No. 2, pp 89-94.
Amu, O.O., Basiru, N. T. and Coker, A.A. (2011d). Effects of Forage Ash as Stabilizing Agent in Lateritic Soil for Road, Innovations in Science and Engineering, Vol. 1, pp 1–8. http://www.woaj.org/ISE.
Ayinla, G.M. (2014). Impact of Hardwood and Softwood Ashes on Soil Geotechnical Properties. Transnational Journal of Science and Technology (TJST), Vol. 3 No. 10, pp. 1-7.
British Standard 1377 - BS 1377 (1990). British Standard Methods of Test for Soils for Civil Engineering Purposes. British Standards Institution, London, UK.
Fasunwon, K.A. (2014).Variability in the geotechnical properties of a lateritic soil from south western Nigeria. Bull. Eng. Geol. Environ. https://doi.org/10.1007/s10064-008- 01372.
Kanyi, M. I. (2017). Soil Stabilization Using Lime: Cement Stabilization of Lateritic Soil using Iron Ore Tailing as Admixture. M.Sc. Thesis. Ahmadu Bello University, Department of Civil Engineering, Zaria, Nigeria. (Unpublished).
Copyright (c) 2022 FUTA JOURNAL OF ENGINEERING AND ENGINEERING TECHNOLOGY
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
With the submission of a manuscript, the corresponding author confirms that the manuscript is not under consideration by another journal. With the acceptance of a manuscript, the Journal reserves the exclusive right of publication and dissemination of the information contained in the article. The veracity of the paper and all the claims therein is solely the opinion of the authors not the journal.