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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Green Concrete: Optimization Of High-Strength Concrete Based On LCA
Author(s): Charlotte Dossche; Veerle Boel; Wouter De Corte; and Nele De Belie
Publication: Special Publication
Appears on pages(s): 34.1-34.10
Keywords: concrete; durability; ecology; life cycle assessment; life cycle inventory; impact assessment methods; sustainability
Abstract:The construction industry is accountable for about 50 percent of the global resource consumption. Within this, traditional concrete is one of the products with a manufacturing process that has a relatively large impact on the environment. As a result of the rising awareness regarding sustainability, concrete suppliers, product manufacturers, and building contractors are concerned about which environmental impact their product has. Based on a life cycle assessment (LCA) it is possible to analyze the different stages in the life cycle of structures and to evaluate the respective impacts. Such a study is presented here for a producer of high-strength concrete building materials, applying a cradle-to-gate approach with options. Specific company data were combined with general input from databases, and a functional unit of 1m³ was adopted to be able to compare the different results. Based on this, it was determined that whereas the reinforcing and prestressing steel and the cement dominate the impact contributions, other factors such as transport by road, maintenance, aggregates, fabrication and concrete waste production during fabrication are non-negligible. A further impact study shows that several adaptions can potentially reduce the impact on the environment with 20 to 30 percent, depending on the assessment method used.
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