A New Test for Estimating Soil Corrosivity Based on Investigation Of Metal Highway Culverts

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Abstract
Corrosion rates of several thousand metal highway culverts buried in California soils were studied with respect to soil resistivity and pH. From this relationship a new test method was derived to estimate soil corrosivity. Statistical analysis was used to compare the accuracy of this method of estimating soil corrosivity with other known methods. It was found that within limits this new test method was a more reliable indicator of relative soil corrosivity than any of the other investigated methods. It was thought, though, that this method might not prove so effective in predicting corrosion for long pipe lines nor for estimating soil corrosivity in certain geographical areas. 4.5.3

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