Recent Advances in Sustainable Concrete for Structural Applications

Pressure is mounting on the construction industry to adopt sustainable development initiatives aimed at limiting the consumption of non-renewable materials as well as the generation of greenhouse gas emissions and demolition waste. This paradigm shift is requiring engineers to consider the environmental footprint of the materials used for construction projects. The concrete industry has recently made significant strides in this area, and there is a need to synthesize current knowledge and address remaining research needs. This paper reports on advances made in the last ten years with respect to the development and use of sustainable concrete for structural applications, with improved cement efficiency and incorporating recycled materials. Available literature supports the use of sustainable concrete as a viable alternative to conventional concrete for structural applications provided that appropriate design methodologies are employed and the characteristics of the constituent materials are properly considered. Despite the environmental and economic incentives, perceived inferiorities continue to limit the widespread adoption of sustainable concrete for field structures. Current research needs and opportunities are also discussed.

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