The laterite borrow pit is developed much the same way as a borrow for other materials of a select nature for use in construction. The surface is cleared of all trees and vegetation and of the sparse covering of organic soils which are usually present. Soils overlying the laterite rock are removed so as to expose a fresh surface of rock to be worked. It is usually desirable, as in other borrow areas, to conduct the borrow operation as a side-hill borrow, beginning at the lower extremities of the deposit to be worked and working uphill. In laterite, this has the advantage of providing a well-drained work area and usually affords an increasing thickness of rock exposed on the cut face, as generally, laterite deposits are thicker at the upper extremities than at the edges.
KeywordsPlasticity Index Optimum Moisture Content Construction Technique Lateritic Soil Compaction Curve
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