IS 6925 -1973 Code Book PDF free download

IS 6925 -1973 Code Book PDF free download


This Indian Standard was adopted by the Indian Standards, ““I Institution on 23 March 1973, after the draft finalized by the Cement and Concrete Sectional Committee had been approved by the Civil Engineering Division Council. Various types of concrete admixtures are being used in this country, such as accelerators, retarders, water-proffers and air en training agents. Some of these admixtures are likely to contain water soluble chlorides which are likely to cause corrosion of reinforcement in the reinforced concrete. In fact the use of such chlorides containing admixtures has been prohibited by IS : 456-1964*. However, the option of using such admixtures is left to the engineer-in-charge who has to use his discretion on the basis of relevant data in respect of the admixtures. As information on the percentage of water soluble chlorides in the admixtures is of vital importance it is considered necessary to bring out a standard dealing I with the methods of test for determination of water content in concrete admixtures.  In reporting the result of a test or analysis made in this standard, if the final value, observed or calculated, off, it shall be done in accordance with IS :2-1960 t.



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