STRENGTH PERFORMANCE OF CONCRETE CURED IN OIL SPILLAGE CONTAMINATED WATER SOURCE IN AKWA IBOM STATE

I. E. Ekop, T. E. Omongbale, J. O. Asiedet

Abstract


Concrete interacts with substances within its environment. These interactions often have significant effects on the properties of concrete made from ordinary Portland cement. The study assesses the effects of oil spillage contaminated water on the performance of concrete in spillage and flaring prone communities in Akwa Ibom State. The result of the physiochemical analysis of the crude oil contaminated water sourced from the study area indicated an acidic medium with acidity index of 4.77, a Ph value of 5.3, turbidity of 0.6 and it also contained Tetraoxosulphate (vi) acid (H2SO4) of 0.0116 mg/l andTrioxonitrate (v) acid HNO3 of 0.1905 mg/l. Concrete specimens were prepared to 1: 2: 4 mix using a water to cement ratio of 0.55 and cured in the contaminated water for 3, 7, 14, 21 and 28 days. The results obtained indicated a reduction in the compressive and flexural strength with 15% and 8% for 3days and 36% and 20% for 28days curing ages respectively, these reductions in strength were attributed to the reaction between Portland cement concrete with sulphates and nitrates compounds present in the contaminated water.  Increased water absorption of 4.81% after 3days and 8.97% after 28days was also observed.


Keywords


Concrete Strength; Contaminated water; Crude oil; Oil Spillage; Water Absorption

Full Text:

PDF

References


BS 12:1996, Specification for Portland Cements, British Standard Institute.

BS 882:1992, Specification for aggregate from natural resources for concrete, London. Bristish Standard Institution

BS EN 1008 : 2002, Mixing water for concrete, British Standard Institute.

BS 1881: Part 116, (1990). Methods for Determination of Compressive Strength of Concrete Cubes. British Standard Institution,

BS 1881: Part 118, (1990). Methods for Determination of Flexural Strength. British Standard Institution,

BS EN 12350 Part 2:2009, Testing fresh concrete: slump test. London.

Energetic Solution Conference (2004). In : Kadafa, A. A. (2012) . Environmental impacts of oil exploration and exploitation in the Niger Delta of Nigeria: Global journal of science frontier research environment & earth sciences. Vol.12(3).

Federal Ministry of Environment Abuja, Nigerian Conservation Foundation Lagos, WWF UK and CEESP-IUCN Commission on Environmental, Economic, and Social Policy, May 31,(2006). Niger Delta Resource Damage Assessment and Restoration Project.

Kadafa, A. A. (2012) . Environmental impacts of oil exploration and exploitation in the Niger Delta of Nigeria: Global journal of science frontier research environment & earth sciences. Global Journals Inc. (USA).Vol.12(3).

Koffi, U. S. (2015). Petroleum Activities, Wetland Utilization and Livelihood Changes in Southern Akwa Ibom State, Nigeria. Lund University GEM Thesis Series. (10)

Niger Delta Environmental Survey (NDES): Environmental and Socio-economic characteristics. Environmental Resources Managers Ltd. Ikoyi, Lagos. Vol.1. Pg. 249, 1997.

Ukpong, E. C. and Peter, B. U. (2012). Physic-chemical and Bacteriological analyses of Drinking water in Ibeno Local Government Area of Akwa Ibom State. Nigerian Journal of Technology (NIJOTECH) vol.31, pp. 115-127.

United Nations Development Programme UNDP, (2006). Niger Delta human development report. Abuja, Nigeria: pp.185-186.


Refbacks

  • There are currently no refbacks.