Browsing by Author "Cross, Stephen"
Now showing items 1-12 of 12
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Automated Rapid Particle Investigation Using Scanning Electron Microscopy
Wilkins, Jerod Laurence (Oklahoma State University, 2013-12-01)The chemical composition of fly ash particles has been known to vary significantly depending on a number of factors. Current bulk methods of investigation including X-Ray Fluorescence and X-Ray Diffraction are thought to ... -
Determining the Air-void Distribution of Fresh Concrete with the Sequential Pressure Method
Welchel, David Leon (2014/12/1)This work consist of the validation of a novel testing procedure, called the SAM, using sequential pressures. The SAM testing procedure uses a new measurement value, called the SAM number, to determine the quality of the ... -
Development of a Flexible Pavement Database for Local Calibration of the MEPDG Part 2 Evaluation of ODOT SMA Mixtures (FHWA-OK-11-06 (2) 2209)
Cross, Stephen; Gibbe, Robel; Aryal, Nyrajan (2011-3)There has been some reluctance on the part of some in Oklahoma to use SMA mixtures. There are several factors that could be involved in the slow acceptance of SMA mixtures in Oklahoma. These factors are 1) the extra expense ... -
DISTRESS MODELING FOR DARWIN-ME (FHWA-OK-13-10 2235)
Wang, Kelvin; Cross, Stephen; Li, Joshua (2013-12)Distress prediction models, or transfer functions, are key components of the Pavement M-E Design and relevant analysis. The accuracy of such models depends on a successful process of calibration and subsequent validation ... -
Dredged material containment area siting and management practices for the McClellan-Kerr Arkansas Navigation System
Cowan, Brett Andrew (2007-05)The McClellan-Kerr Arkansas Navigation System (MKARNS) currently has a 9-ft. draft channel for carrying raw materials into the Port of Catoosa in Oklahoma. By deepening the channel to a 12-ft draft, approximately 33 percent ... -
Durability Evaluation of Concrete with High-volume Recyled Materials
Zare Banadkoki, Mohammad (2017-12-01)This work aims to analyze the durability of concrete with high replacement percentages of virgin materials with recycled concrete as a coarse aggregate and class-C fly ash as a supplementary cementitious material. More ... -
EVALUATION OF THE HAMBURG RUT TESTER AND MOISTURE INDUCED STRESS TESTER (MIST) FOR FIELD CONTROL OF HOT MIX ASPHALT (HMA) IN OKLAHOMA (FHWA-OK-13-01 2226)
Cross, Stephen; Shitta, Helal; Workie, Alem (2013-3)This report covers the evaluation of the Hamburg Loaded Wheel Rut Tester (OHD L-55) and the Moisture Induced Stress Tester (MIST) for field control of Oklahoma HMA mixtures. OHD L-55 was evaluated as a possible replacement ... -
Impact of water and C3A on Portland cement hydration
Robertson, J. Bret (2020-07)The water-cement ratio (w/cm) is one of the most influential parameters to determine the quality of concrete. A new test method, the Phoenix, has been developed that uses external heat to evaporate the water from the ... -
Longitudinal Joint Density and Permeability in Asphalt Concrete (FHWA-OK-08-07 2197)
Cross, Stephen; Bhusal, Sushanta (2009-3)Low longitudinal joint density has been identified as one of the major issues relating to poor asphalt pavement performance. Low longitudinal joint density can lead to premature raveling of the joint and the lower density ... -
Optimized Graded Concrete For Slip Formed Paving
Cook, Marllon Daniel (Oklahoma State University, 2013-05-01)A study was conducted into the proportioning and gradation of concrete aggregates to reduce the paste volume of a mixture for the sole purpose of slip formed paving. Various nominal maximum aggregate sizes and different ... -
Performance of Ultra Thin White Topping in Oklahoma
Rotithor, Hari Ganesh (Oklahoma State University, 2011-07-01)Asphalt pavements would benefit from a low maintenance rehabilitation technique. Modern technology in the form of placement of a thin concrete overlay or ultra thin whitetopping (UTW) can be a promising solution for such ... -
QC/QA TESTING DIFFERENCES BETWEEN HOT MIX ASPHALT (HMA) AND WARM MIX ASPHALT (WMA) (FHWA-OK-13-02 2218)
Cross, Stephen; Shitta, Helal; Workie, Alem; Inestroza, Martha Castellon (2013-1)WMA represents a group of technologies which allow a reduction in temperatures at which asphalt mixtures are produced and placed on the road. ODOT Materials Division has conducted preliminary inquiries into QC/QA testing ...