Part I, Controls on architecture of Argentine limestone and associated strata in northeastern Kansas. Part II, A firstcut method for evaluating limestone aggregate durability using spectral scintillometry

01044288768134152006Final reportPDFResearch PaperK-TRAN:KU-03-2RE-0316-01C1364Aggregate testsLimestone aggregatesDeposits (Geology)DurabilityClay mineralsLithologic compositionStratificationKansasMissouriKansas. Dept. of TransportationEmry, Julienne RuthGoldstein, Robert H.Franseen, Evan K.University of Kansas. Dept. of GeologyKansas Geological SurveyKansas. Dept. of Transportation. Bureau of Materials & ResearchUniversity of Kansas. Center for ResearchKansas State UniversityNTL-HIGHWAY/ROAD TRANSPORTATION-MaterialsUS Transportation CollectionMissourian strata were studied in eastern Kansas to evaluate the build-and-fill controls on strata deposited in association with high-amplitude glacioeustatic sea-level fluctuations. Results from this study show that creation of relief in high-frequency glacioeustatic sequences can occur after falls in sea level, with deposition of lobate siliciclastics and erosion of preexisting strata. Intermediate sea-level positions after falls result in carbonate deposits that fill relief and even out topography. In Kansas, many of these units are utilized for limestone aggregate. The Kansas Department of Transportation (KDOT) uses physical tests to determine aggregate durability. This project tests a first-cut method for evaluating aggregate durability using spectral gamma ray scintillometry. A logistic model using Kmax measurements provides the best prediction of durability. Implementation of the first-cut test uses lithologic determinations in the field and an Excel add-in that calculates the probability of an aggregate passing or failing the KDOT physical tests. /Abstract from report summary page/93