1 General Provisions
1.0.1 This standard is formulated with a view to testing the basic engineering properties of soil, unifying the test methods, and providing reliable calculation index and parameter for the highway engineering and construction.
1.0.2 This standard is applicable to basic engineering properties tests of foundation soil, subgrade soil and other road using soil in highway engineering.
1.0.3 For engineering of all kinds, the reasonable testing program is prepared, the representative samples are selected, the accurate data are gotten and the correct analysis and arrangement of data is conducted. The soil indexes to reflect the actual situation are provided for engineering and construction.
1.0.4 The analysis and arrangement for soil test material are conducted according to Annex A, and the overall (soil mass unit) characteristics and change regularity are estimated by the research on the samples (data gotten in the test).
1.0.5 For soils of different type and gradation, the soil test reports shall state basic particle gradation, liquid limit and plastic limit indexes of soils; for special soil, it shall also provide test indexes in indicate the essential characteristic of special soil.
1.0.6 The highway soil tests shall meet the requirements of relevant current national and professional standards, besides this standard.
