NDOR Material and Research
Nebraska Department of Roads
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 ConstructionÛ 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.