Unified Soil Classification System

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Unified soil Classification System : Field Method1Department of Sustainable Natural ResourcesSOIL SURVEY STANDARD TEST METHODUNIFIED soil Classification System : FIELD METHOD ABBREVIATED NAMEUSCSTEST NUMBERP13TEST METHOD TYPEBVERSION NUMBER2SCOPEThis test method describes the engineering properties of a soil based on the size of theparticles, the amounts of the various sizes and the characteristics of the very fine grains. It canbe carried out by either field examination or laboratory APPARATUSSieves, 75 mm, mm (ASTM No 4), mm (ASTM No 10), mm aperture (ASTM No40). Unified soil Classification System : Field Method2PROCEDUREField Classification Technique for Coarse-Grained Soils1. Take a representative sample of soil (excluding particles >75 mm) (see Note 1) andclassify the soil as coarse-grained or fine-grained by estimating whether 50% by weight, ofthe particles can be seen individually by the naked eye.

UNIFIED SOIL CLASSIFICATION . SYSTEM: FIELD METHOD . ABBREVIATED NAME. USCS: TEST NUMBER: P13: TEST METHOD TYPE: B: VERSION NUMBER: 2: SCOPE: This test method describes the engineering properties of a soil based on the size of the particles, the amounts of the various sizes and the characteristics of the very fine grains. It can

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