IS 2720 Pt.33-1971

标准号：IS 2720 Pt.33-1971
发布日期：1972/2/1 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：1.1 This standard ( Part XXXIII) covers the method for determining the in-place density of a coarse grained soil including gravels, cobbles, boulders and rock by the water replacement method using a circular ring on the surface and a plastics film to retain the water (see Notes 1 and 2 ).Note 1 — If desired, successive density tests may be performed as the hole is pro-gressively deepened to determine the variation of density with depth, for example, when placing and compacting material in relatively thick layers.Note 2 — A field grading of the excavated soil, may, if desired, be done while the test hole is being excavated.1.1.1 The field dry density is determined either for the total material or for the material smaller than a specified or given size.