SUSTAINABLE CONCRETE CONSTRUCTION: ISSUES FOR DEVELOPING COUNTRIES

Concrete is being used extensively in developing countries including India for building and civil engineering works, as structural steel is relatively expensive. Almost all the ingredients of concrete are readily available. 14 different types of grades of cement of international quality are produced locally. Reinforcement bars, prestressing steel and admixtures are also indigenously produced. Good quality admixtures are also produced. Bureau of Indian Standards are publishing Codes, Specifications and Standards relating to cement and concrete. High Strength concrete of upto 80 MPa grade is being used for Nuclear Containment structures, High Rise Buildings, Bridges and Flyovers etc. Many of the RC structures built in the Twenties and PSC structures built since 1940 have performed well. Ready-mixed concrete industry in India started operations in the Nineties and is steadily expanding. Problems include realizing sustainable hot weather concreting, level of mechanization, implementation of Codes and Specifications and Project Management deficiencies. The presentation addresses these and other various issues.

• INTRODUCTION

• SUSTAINABILITY OF CONCRETE CONSTRUCTION

• ROLE OF NATIONAL COUNCIL FOR CEMENT AND BUILDING MATERIALS

• INFRASTRUCTURE DEVELOPMENTS IN INDIA

• INDIAN CONCRETE CODE

• CONCRETE CONSTRUCTION MATERIALS

• READY-MIXED CONCRETE

• CONCRETE MIX DESIGN PROCEDURES

• HIGH PERFORMANCE CONCRETE (HPC) [8]

• PROSPECTS

• REFERENCES