Abstract
The chemical characteristics of bitumen influence its industrial values and its physical characteristics for road construction. There are vast deposits of bitumen in Agbabu and Loda in Odigbo and Irele area in Ondo State, Nigeria, for years unutilized. The evaluation of their chemical constituents with the imported bitumen, Raynolds Construction Company (RCC) revealed the concentration levels of sulphate content (mg/g) (252.30 ± 0.01, 172.10 ± 0.02 and 167.50 ± 0.01), sulphide content (mg/g) (186.80 ± 0.01, 180.40 ± 0.01 and 178.80 ± 0.01), nitrogen content (g/100g) (2.10 ± 0.01 and 3.06 ± 0.02 and 5.07 ± 0.01) obtained from Agbabu, Loda and RCC bitumen respectively. The Total Petroleum Hydrocarbon and Polycyclic Aromatic Hydrocarbon from the three sources (Agbabu, Loda and RCC) were determined by Gas chromatography (GC) and Gas chromatography/Mass Spectroscopy (GC/MS) Varian Chromapack (SATURN 2000). The results obtained were; TPH (mg/kg) 224622.00, 271271.00 and 91479.00, PAH (mg/kg) 2941.00, 500.00 and 166.6 respectively. The results revealed that Agbabu bitumen has higher values than the rest in terms of its TPH and PAH.
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