IS 2720 -1972 Code Book PDF free download
This Indian Standard (Part XXXIV) was adopted by the Indian Standards Institution on 31 January 1972, after the draft finalized by the Soil Engineering Sectional Committee had been approved by the Civil Engineering Division Council. With a view to establish uniform procedures for the determination of different characteristics of soils and also for facilitating comparative studies of the results, the Indian Standards Institution is bringing out this ‘Indian Standard Methods of test for soils’ (IS: 2720) which is being published in parts. This part deals with the procedure for the determination of the density in-place of compacted or firmly bonded soil using a rubber-balloon apparatus. The in-place density of natural soil is needed for the determination of bearing capacity of soils, for the purpose of stability analysis of natural slopes, for the determination of pressures on underlying strata for calculation of settlement, etc. In compacted soils the in-place density is needed to check the amount of compaction that the soil has undergone for comparison with design data. In the formulation of this standard due weight age has been given to international co-ordination among the standards and practices prevailing in different countries in addition to relating it to the practices in this field in this country. In reporting the result of a test or analysis made in accordance with this standard, if the final value, ‘observed or calculated, is to be rounded off, it shall be done in accordance with IS : Z-1960*.
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