SUSTAINABLE DEVELOPMENT IN CEMENT AND CONCRETE

Cement is the key ingredient in making concrete. Concrete is the second consumed materials after water in the world. When a material becomes as integral to the structure as concrete, it is important to analyze its environmental impacts to conclude if the material is as sustainable as it is prevalent. In this paper the role of cement and concrete in sustainable development is discussed. The use of bio-fuels and alternative raw materials can reduce the CO2 emission in cement production. Supplementary cementing materials are new widely used for making durable concretes and reducing the CO2 emission. Exploiting the thermal mass of concrete to create energy-optimized solutions for heating and cooling residential and office buildings is discussed. Finally the production of recycled aggregate concrete from old concrete structures can have a major environmental impact in the future programs for sustainable development.

کلیدواژه ها:

sustainable development ، concrete ، cement ، durability ، CO2 emission