E-ISSN 2705-3954 | ISSN 0794-4756
 

Original Research 


Geotechnical characteristics of road construction soils stabilized with lime in Southwestern Nigeria

Sunday Olubunmi FALUYI , Olugbenga Oludolapo AMU, Adeyemi Ezekiel ADETORO, Folahan Okeola AYODELE.


Abstract
The quality of the roads in Southwestern Nigeria is appalling; most are impassable owing to pavement collapses, prompting research into the feasibility of underlying soil courses if lime is used to stabilize them. This study used eighteen borrow pit soil samples for road construction (one from each Senatorial district in Southwestern Nigeria). Strength studies (compaction, California Bearing Ratio (CBR), and Unconfined Compressive Strength (UCS)) were conducted in the laboratory using standard procedures. 2, 4, 6, 8, and 10% of lime was added to the dry weight of soil to obtain the varied stabilized soil samples. The Maximum Dry Density (MDD), CBR, and UCS values all improved as the lime concentration increased, with the optimum being obtained at 6% lime addition. Although, there was an exception for OMC, which continued to increase with the increase in lime content up to 10%. Predominantly, unsuitable soil samples became suitable as pavement layer materials after stabilization with 6% lime. Hence, due to the improvement in their strength properties when stabilized with lime, the underlying soil courses in Southwestern Nigeria roadways should be stabilized with 6% lime content during construction for durable pavements.

Key words: Geotechnical characteristics, Lime, Road construction, Southwestern Nigeria, Stabilization


 
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How to Cite this Article
Pubmed Style

SOF, AMU OO, ADETORO AE, AYODELE FO, . Geotechnical characteristics of road construction soils stabilized with lime in Southwestern Nigeria. NJE. 2023; 30(2): 1-9. doi:10.5455/nje.2023.30.02.01


Web Style

SOF, AMU OO, ADETORO AE, AYODELE FO, . Geotechnical characteristics of road construction soils stabilized with lime in Southwestern Nigeria. https://www.njeabu.com.ng/?mno=66108 [Access: September 13, 2024]. doi:10.5455/nje.2023.30.02.01


AMA (American Medical Association) Style

SOF, AMU OO, ADETORO AE, AYODELE FO, . Geotechnical characteristics of road construction soils stabilized with lime in Southwestern Nigeria. NJE. 2023; 30(2): 1-9. doi:10.5455/nje.2023.30.02.01



Vancouver/ICMJE Style

SOF, AMU OO, ADETORO AE, AYODELE FO, . Geotechnical characteristics of road construction soils stabilized with lime in Southwestern Nigeria. NJE. (2023), [cited September 13, 2024]; 30(2): 1-9. doi:10.5455/nje.2023.30.02.01



Harvard Style

, S. O. F., AMU, O. O., ADETORO, A. E., AYODELE, F. O. & (2023) Geotechnical characteristics of road construction soils stabilized with lime in Southwestern Nigeria. NJE, 30 (2), 1-9. doi:10.5455/nje.2023.30.02.01



Turabian Style

, Sunday Olubunmi FALUYI, Olugbenga Oludolapo AMU, Adeyemi Ezekiel ADETORO, Folahan Okeola AYODELE, and . 2023. Geotechnical characteristics of road construction soils stabilized with lime in Southwestern Nigeria. Nigerian Journal of Engineering, 30 (2), 1-9. doi:10.5455/nje.2023.30.02.01



Chicago Style

, Sunday Olubunmi FALUYI, Olugbenga Oludolapo AMU, Adeyemi Ezekiel ADETORO, Folahan Okeola AYODELE, and . "Geotechnical characteristics of road construction soils stabilized with lime in Southwestern Nigeria." Nigerian Journal of Engineering 30 (2023), 1-9. doi:10.5455/nje.2023.30.02.01



MLA (The Modern Language Association) Style

, Sunday Olubunmi FALUYI, Olugbenga Oludolapo AMU, Adeyemi Ezekiel ADETORO, Folahan Okeola AYODELE, and . "Geotechnical characteristics of road construction soils stabilized with lime in Southwestern Nigeria." Nigerian Journal of Engineering 30.2 (2023), 1-9. Print. doi:10.5455/nje.2023.30.02.01



APA (American Psychological Association) Style

, S. O. F., AMU, O. O., ADETORO, A. E., AYODELE, F. O. & (2023) Geotechnical characteristics of road construction soils stabilized with lime in Southwestern Nigeria. Nigerian Journal of Engineering, 30 (2), 1-9. doi:10.5455/nje.2023.30.02.01