power shri c l n iyengar the concrete association of

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Unformatted text preview: nistry of Irrigation & Power) SHRI C. L. N. IYENGAR The Concrete Association of India, Bombay SHRI S. V. NATU Public Works Department, Bombay SHRI C. C. PATEL ( Alternate ) SHRI E. P. NICOLAIDES Gammon India Ltd., Bombay DR K. L. RAO Central Water & Power Commission (Ministry of Irrigation & Power) SHRI SARUP SINGH National Buildings Organisation (Ministry of Works, Housing & Supply) SHRI K. RAMA VARMAN ( Alternate ) SHRI H. P. SINHA Roads Wing, Ministry of Transport & Communications SHRI K. C. SOOD Research, Design & Standardization Organization (Ministry of Railways) 2 IS : 516 - 1959 Indian Standard METHODS OF TESTS FOR STRENGTH OF CONCRETE 0. FOREWORD 0.1 This Indian Standard was adopted by the Indian Standards Institution on 10 November 1959, after the draft finalized by the Cement and Concrete Sectional Committee had been approved by the Building Division Council. 0.2 Testing plays an important role in controlling the quality of cement concrete work. Systematic testing of the raw materials, the fresh concrete and the hardened concrete is an inseparable part of any quality control programme for concrete which helps to achieve higher efficiency of the materials used and greater assurance of the performance of the concrete in regard to both strength and durability. The test methods used should be simple, direct and convenient to apply. This standard has been prepared with this object in view and provides a guide to the determination of compressive strength, flexural strength and modulus of elasticity of concrete. Sampling and analysis of concrete have been covered separately in IS : 1199-1959 Methods of Sampling and Analysis of Concrete. 0.3 The Sectional Committee responsible for the preparation of this standard has taken into consideration the views of concrete spets, testing authorities, consumers and technologists and has related the standard to the practices followed in the country in this field. The need for international co-ordination between standards prevailing in different countries of the world has also been recognized. These considerations led the Sectional Committee to derive assistance from the published standards and publications of the following organizations: BRITISH STANDARDS INSTITUTION AMERICAN SOCIETY FOR TESTING MATERIALS AMERICAN CONCRETE INSTITUTE CANADIAN ENGINEERING STANDARDS ASSOCIATION RESEARCH, DESIGN & STANDARDIZATION ORGANIZATION, MINISTRY OF RAILWAYS, GOVERNMENT OF INDIA THE CONCRETE ASSOCIATION OF INDIA 0.4 The Indian Standard Methods of Sampling and Analysis of Concrete (IS : 1199-1959) is a necessary adjunct to this standard. Besides, this standard requires reference to the following Indian Standards: *IS : 269-1958 SPECIFICATION FOR ORDINARY, RAPID-HARDENING AND LOW HEAT PORTLAND CEMENT ( Revised ) *Since revised. 3 IS : 516 - 1959 *IS : 383 : 1952 SPECIFICATION FOR COARSE AND FINE AGGREGATES FROM NATURAL SOURCES FOR CONCRETE †IS : 455-1953 SPECIFICATION FOR PORTLAND BLASTFU...
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