oa Civil Engineering = Siviele Ingenieurswese - The durability mill: A new performance-related durability test for basecourse aggregates



Investigation of a number of premature basecourse failures on roads throughout Southern Africa has shown that In nearly every case the plasticity index (PI) and the fines of the basecaurse material passing the 0,425 mm sieve (P425) exceeded the specification limits. In some cases the problems were built in, but in others the material degraded under traffic and in the presence of excess moisture to material that was incapable of functioning as a basecourse.


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