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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: Measuring and Predicting Transport in Composite Cementitious Barriers
Author(s): Peter A. Claisse, Esmaiel Ganjian, Alan Atkinson, and Mark Tyrer
Publication: Materials Journal
Appears on pages(s): 113-120
Keywords: adsorption; diffusion; permeability
Abstract:Concrete barriers are being designed as alternatives to conventional systems used as landfill liners. The concretes are made from mineral wastes and are expected to be cheaper and more effective than current systems. To predict the performance of the barriers, transport modeling is used. The processes of advection, diffusion, and adsorption are included in the model. Laboratory experiments have been carried out to determine the properties of the concrete mixtures and large site trials have been carried out to test the model using the material parameters obtained. Confidence limits for the results have been obtained by running the model with successive data sets representing extreme values of the input data. The observed results from the site trials generally fall within the expected limits, but there are some notable exceptions. It is concluded that transport modeling of real landfills is not an exact science.
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