Evaluating the Effectiveness of Fly Ashes to Mitigate ASR and Using Recycled Concrete Aggregate in New Construction

Project Details
STATE

WY

SOURCE

RIP

START DATE

11/14/14

END DATE

09/30/18

RESEARCHERS

University of Wyoming, Laramie

SPONSORS

WY DOT

KEYWORDS

Alkali silica reactions, Concrete aggregates, Fly ash, Mortar, Prisms, Recycled materials, Wyoming

Project description

This project shall conduct tests on fly ashes; evaluate moderately reactive, reactive, and very highly reactive aggregates; conduct concrete prism testing; demolish blocks and make recycled concrete aggregate; and continue monitoring field specimens. This project will be conducted in four phases. Phase 1 shall consist of mortar bar and concrete prism tests of moderately and highly reactive aggregates. Phase 2 shall conduct additional concrete prism testing that could permit the Wyoming Department of Transportation (WYDOT) to evaluate specific fly ash sources. In Phase 3 testing on recycled concrete aggregates will be conducted. During Phase 4, the principle investigator will continue to monitor field samples.
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