Project 0092-07-02: Detecting Deleterious Fine Particles in Concrete Aggregates and Defining Their Impact (In Progress)

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Project ID: 0092-07-02
Title: Detecting Deleterious Fine Particles in Concrete Aggregates and Defining Their Impact
PI: Steven M. Cramer
Department of Civil and Environmental Engineering
University of Wisconsin-Madison
Project: The objectives of the research are to:
1) Develop a rapid test to detect clay particles in aggregate sources that is both indicative of their quantity and their physical and chemical nature. This is intended to indicate whether
these clays are harmful or innocuous.
2) Quantify the impact of total (from combined coarse and fine aggregates) clay content on concrete strength development, shrinkage and porosity. Advance a fundamental knowledge
of the role of clays in concrete performance so that mitigation strategies can be formed in future research.
3) Quantify clay content from several Wisconsin sources of aggregates to determine the relative contribution of clay fines from coarse aggregates and from fine aggregates.
End Date: October 1, 2006
End Date: October 1, 2008, April 30, 2010
Project Award:

$129,999
Contract Amendment = $95,000
Total=$224,999

TOC: Rigid Pavements