Influence of subgrade soil on pavement performance: a case study of Ago-Iwoye-Ilishan road, southwestern Nigeria

• Autorzy: Fatoba J.O. , Sanni A. O. , Ayantunji A. B.
• Języki publikacji: EN

Abstrakty

EN

Ago-Iwoye –Ilisan road is the major road that links Abeokuta the state capital of Ogun –state to Ijebu towns. The road has always been experiencing pavement failure, which occurs inform of cracks and potholes. Being the major road, the effect of the failure has negative impact on the soicoeconomic growth of Ijebu –areas. The primary objective of the study was to determine the influence of the geotechnical properties of the sub-grade materials on the pavement performance of Ago- Iwoye – Ilishan Road. Eleven (11) soil samples were collected at eight (8) different locations with the aid of hand auger and were air-dried before taken to the laboratory for determination of engineering properties. The Liquid limit and the Plastic limits ranged from 13.9 – 46.2% and 8.1 – 32.7%, with the Plasticity index from 10.6 – 15.9% and Shrinkage limit from 6.2 – 27.7% respectively. The soaked CBR values of the subgrade materials is between 67% and 75% compared with 30% minimum specified by FMWH, 1997. The soils were classified by ASSHTO under the A-6 and A-7 category which shows that the soils are fair to poor as a sub-grade material and USCS classification shows that the soil falls into the SM and SC group. The comparison of all the results with the Nigeria specification (Federal Ministry of Works and Housing general guidelines) for the sub grade materials along the Ago-Iwoye- Ilisian road show that the materials underlain the pavement do satisfy the Nigeria standard. Therefore, the perennial failure frequently experience along the road route is not significantly influenced by subgrade materials. Hence, influence of other factors such as poor drainage courses, level of groundwater table, variation of geologic materials along the road route and poor construction materials should be thoroughly addressed before embarking on future rehabilitation of the highway.

Słowa kluczowe

EN

Nigeria; subgrade; pavement; groundwater table; geotechnical property; road construction; highway; case study

• Wydawca: -
• Czasopismo: International Letters of Natural Sciences
• Rocznik: 2015
• Tom: 38
• Opis fizyczny: p.82-88,fig.,ref.

Twórcy

autor

Fatoba J.O.

• Earth Sciences Department, Olabisi Onabanjo University, Ago-Iwoye, Ogun State, Nigeria

autor

Sanni A. O.

• Department of Geosciences, University of Lagos, Akoka, Lagos State, Nigeria

autor

Ayantunji A. B.

• Earth Sciences Department, Olabisi Onabanjo University, Ago-Iwoye, Ogun State, Nigeria

Bibliografia

• [1] AASHTO (1962): Road Test Report 5 (PavementResearch), Highway Research Board, Special Report 6IE Washington D.C.
• [2] Akanni, C.O. (1991). Relief, drainage, soil and climate of Ogun. In: Ogun State in maps. Edited by Onakomaiya, S.O; Oyesiku, O.O and Jegede, F.J. Published by Rex Charles Publications, 6 -20p.
• [3] Bayewu, O.O, Oloruntola, M. O., Mosuro, G. O. and Adeniyi S. A. (2012): Petrographic and geotechnical properties of Lateritic Soils developed over different parent rocks in Ago- Iwoye area, Southwestern Nigeria. Int. Journal of Applied Sciences and Engineering Research, Vol. 1, Issue 4.
• [4] Federal Ministry of Works and Housing (FMWH)1972. Highway Manual Part 1 Road Design. Federal Ministry of Works and Housing, Lagos.
• [5] Jegede, G. (2004): Highway Pavement Failure Induced by Poor Geotechnical Properties along a section of F209 Okitipupa-Igbokoda Highway Southwestern, Nigeria. Ife J. Sci., 6(1): 41-44. Journal of Soil Science and Environmental Management Vol. 3(5), pp. 110-117.
• [6] Mcghee KH (2010). Development and Implementation of Pavement Condition Indices. J. Sci. Res., 1(2): 10-18.
• [7] Olurin O. T., Badmus B.S, Akinyemi O.D, Olowofela J.A, Ozebo V.C & Ganiyu S.A (2012): Analysis of Physical Parameters of Limestone Deposits in Ewekoro Formation, Southwestern Nigeria, Journal of Earth Science Research; Vol. 1, No. 2;117-121.
• [8] Sarsam, S.I. (2010). Visual Evaluation of Pavement Surface Condition Using an Expert System. Indian J. Highways, 2(1): 20-26.
• [9] Talukder, M.J. (2009). Evaluation of Existing Pavement of Sylhet-Sunamganj Road by Dynamic Cone Penetrometer. The institution of Engineers, Bangladesh. Penetrometer. J. Civil Eng., 35(1): 51-59.
• [10] Woods, W.R., Adcox, J.W. (2006): A general characterization of pavement system failures with emphasis on a method for selecting repair process. J. Construct. Transport., l4(2): 26-34.

Uwagi

Rekord w opracowaniu