2018
DOI: 10.14233/ajchem.2018.21211
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Evaluation of Corrosivity of Soil Collected from Central Part of Kathmandu Metropolis (Nepal) to Water Supply Metallic Pipes

Abstract: The corrosion of the buried-metallic pipes in soil has long been serious engineering problems [1,2]. A failure of water supply buried-metallic pipes by disturbed soil is high all over the world. In general, it has been assumed that the soil corrosion of the buried-pipes by undisturbed soil is negligible as compared by disturbed soil [3,4] and hence most buried-pipe corrosion study is focused to estimate most effective parameters of the disturbed soil samples for assessing their corrosivity to the pipes. Metall… Show more

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Cited by 9 publications
(8 citation statements)
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“…Extensive research has led to the discovery of a new class of corrosion inhibitors that are eco-friendly. Previous studies were reported about the corrosion behavior of different ferrous structural materials used in Nepal in different corrosive environments [42][43][44][45][46][47][48][49][50][51], although a few studies were focused on the effects of eco-friendly plant-extracted green inhibitors on the mild steel corrosion [14,15,18]. In this context, the present work was aimed to study the effects of four inorganic compounds; Ca(NO 3 ) 2 , ZnSO 4 , (…”
Section: Introductionmentioning
confidence: 99%
“…Extensive research has led to the discovery of a new class of corrosion inhibitors that are eco-friendly. Previous studies were reported about the corrosion behavior of different ferrous structural materials used in Nepal in different corrosive environments [42][43][44][45][46][47][48][49][50][51], although a few studies were focused on the effects of eco-friendly plant-extracted green inhibitors on the mild steel corrosion [14,15,18]. In this context, the present work was aimed to study the effects of four inorganic compounds; Ca(NO 3 ) 2 , ZnSO 4 , (…”
Section: Introductionmentioning
confidence: 99%
“…The empirical relationship between the resistivity (y) and the moisture (x) in soil samples is found to be as; y= 3.37×10 4 -1.78×10 4 log(x) with the regression coefficient (=R 2 ) of 0.677. It was observed a good correlation between the soil corrosivity towards the buried-metallic materials and the nature of decreasing the soil resistivity with increasing the moisture content in it was reported in the literature [31,50].…”
Section: Correlation Between Soil Propertiesmentioning
confidence: 52%
“…Some of the widely accepted and have been used classification methods to evaluate the corrosive nature of the soil to buried-metallic pipelines are ASTM [23][24][25], NACE [26,27] and ANSI/AWWA [28,29]. The ASTM and NACE systems are practiced previously to assess the degree of soil corrosivity to the buried-metallic pipelines [30][31][32][33][34][35][36]. In both the ASTM and NACE systems, the electrical conductivity/resistivity of soils is believed as the most important parameter for the evaluation of the buried-pipe corrosion, although the effects of other physicochemical soil parameters take account of less significance.…”
Section: Introductionmentioning
confidence: 99%
“…A soil Mc had reported a profound effect on the soil resistivity and thence the soil corrosivity [75]. A sandy soil, which easily drains off the soil Mc is less aggressive in most cases, whereas a clay, which has a high waterretaining capacity, shows high electrical conductivity and hence it was expected to be more corrosive to the water pipes in soils [35]. Besides, the ρ sat increases exponentially with decreasing the Cl − , SO 4 2− or both concentrations which are in agreement with previously reported data [76].…”
Section: Inter-dependency Analysis Of Soil Factorsmentioning
confidence: 99%