Concrete pavement mixture design and analysis (MDA) : an innovative approach to proportioning concrete mixtures.
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2015-03-01
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Abstract:Mixture proportioning is routinely a matter of using a recipe based on a previously produced concrete, rather than adjusting the
proportions based on the needs of the mixture and the locally available materials. As budgets grow tighter and increasing attention is
being paid to sustainability metrics, greater attention is beginning to be focused on making mixtures that are more efficient in their usage
of materials yet do not compromise engineering performance. Therefore, a performance-based mixture proportioning method is needed
to provide the desired concrete properties for a given project specification. The proposed method should be user friendly, easy to apply
in practice, and flexible in terms of allowing a wide range of material selection.
The objective of this study is to further develop an innovative performance-based mixture proportioning method by analyzing the
relationships between the selected mix characteristics and their corresponding effects on tested properties. The proposed method will
provide step-by-step instructions to guide the selection of required aggregate and paste systems based on the performance requirements.
Although the provided guidance in this report is primarily for concrete pavements, the same approach can be applied to other concrete
applications as well.
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