Nebraska’s Aggregate Reactivity Evaluation Phase II

Project Details
STATE

NE

SOURCE

NC2

END DATE

09/01/13

RESEARCHERS

NDOR Material and Research

SPONSORS

Nebraska Department of Roads

KEYWORDS

Aggreagte Reactivity

Project description

Phase II of the laboratory investigation is currently underway and serves as a continuation of Phase I. Which, analysis of the test results were based on the AASHTO PP 65-10 (2010) special provision guide, ‰ÛÏDetermining the Reactivity of Concrete Aggregate and Selecting Appropriate Measures for Preventing Deleterious Expansion in New Construction‰Û and ultimately determine the overall level of risk due to ASR. Through Phase I evaluation, it was found that all aggregate pit locations tested resulted in Moderate to Very Highly Reactive aggregates.
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