CONCRETE WORKABILITY TEST METHODS

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SUMMARY OF CONCRETE WORKABILITY TEST METHODS

SUMMARY OF CONCRETE WORKABILITY TEST METHODS
Eric P. Koehler
University of Texas at Austin
Austin, TX
David W. Fowler
University of Texas at Austin
Austin, TX
ICAR Report 105.1
ICAR 105: Measuring the Workability of High Fines Concrete
Sponsored by:
Aggregates Foundation for Technology, Research, and Education
International Center for Aggregates Research
The University of Texas at Austin
August 2003

This document describes 61 test methods for measuring concrete workability.
Many more test methods have been developed for a single project or for a specific
application and have been sparsely reported in the literature, if at all. Although many of
the devices in this document will likely never be used in the future and have been
scarcely used in the past, an examination of tests that have failed and tests that have
been supplanted by better tests is instructive in recognizing trends in concrete
workability research and in selecting key concepts for the development of a new test
method.
This document first describes key principles and trends in the measurement of
workability and then describes the 61 test methods. Based on the successes and failures
of past test methods and the current needs of the concrete industry, requirements for
new test methods are developed.

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