Implementation of ASTM C157: Testing of Length Change of Hardened Concrete

Project Details
STATE

KS

SOURCE

TRID

END DATE

09/01/16

RESEARCHERS

Andrew Jenkins

SPONSORS

Kansas DOT

KEYWORDS

Acceptance tests, bridge decks, concrete tests, implementation, mix design, shrinkage

Project description

The Kansas Department of Transportation (KDOT) has a history of using tests such as concrete strength, permeability, and air void structure as design and acceptance criteria on concrete paving and bridge deck projects. In 2012, the KDOT Concrete Research group concluded a study on testing the length change of hardened concrete according to ASTM C157 (2008), commonly referred to as free shrinkage. This free shrinkage test was reviewed as a possible design or acceptance test for construction projects, primarily relating to bridge decks where even minimal cracking is detrimental.
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