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Effect of Steel Fiber Content on Mechanical Properties of Non-proprietary Ultra-High Performance Concrete
(2020-07-30)
Ultra-high performance concrete (UHPC) is an extremely durable type of concrete that includes high volumes of cementitious material, fine aggregate, superplasticizer, and steel fibers with an overall low water to cement ...
Evaluating Low Impact Development Best Management Practices as an Alternative to Traditional Urban Stormwater Management
(2016-08-12)
The Trailwoods residential neighborhood (Norman, OK) included two instrumented watersheds (each approximately 2.3 acres), with the purpose of quantifying the impact on stormwater quantity and quality through implementation ...
Influence of Compaction and Quality Control on the Performance of GRS-IBS Bridge Abutments
(2020-05)
GRS-IBS is a type of bridge abutment that has become more widespread in local and county roads across the United States due to its demonstrated advantages including expedited construction at reduced costs and prevention ...
Evaluation of Causes of Transverse and Fatigue Cracking in Flexible Pavements Using Laboratory and Field Testing and PMED Simulation
(2020)
Fatigue cracking and transverse cracking are two of the most prevalent distresses in flexible pavements. In this study, probable causes of these distresses were evaluated using field and laboratory testing and simulations ...
Seismic Performance of Grouped Helical Piles in Pinned and Fixed Connections
(2018)
Helical piles have yet to be nationally considered an acceptable foundation for structures in areas of high seismic activity. This remains despite evidence of helical pile survival stories from recent earthquakes where ...
Estimating Wave Reduction by Floating-Wetland Breakwaters Using Small-Scale Physical Models
(2020)
Wind-induced waves can cause significant erosion on lake shorelines. One solution to this problem is to absorb the waves before they reach the shoreline. Floating breakwaters have been used to reduce waves, but provide ...
ROLLING-TYPE ISOLATION: AN EXPERIMENTAL CHARACTERIZATION AND NUMERICAL PARAMETRIC STUDY
(2017-12-15)
Building contents and nonstructural components are known to be vulnerable during seismic events. Of particular concern is computer and network equipment that is critical in the post-earthquake recovery process. A solution ...
Microcosm assessment of natural processes affecting chemicals of emerging concern in secondary effluent
(2017-05)
The fight for new water sources is over, reclaimed water is next. Currently, the City of Norman supports its water needs via Lake Thunderbird (LT) and the Central Oklahoma Aquifer System (COAS). In times of peak demand, ...
Soil Trace Metals Concentrations in A Mining Impacted Agricultural Watershed: Comparison of Analytical Methods, Geospatial Distribution, and Evaluation of Risk
(2018-05-11)
This study investigated four aspects surrounding lead, zinc, and cadmium soil trace metals concentrations within a mining impacted watershed: (1) a comparison of three soil trace metal quantification methods relating ...
Performance of Fiber-Reinforced Self-Consolidating Concrete for Repair of Bridge Sub-Structures
(2016-05)
The damage of various reinforced concrete elements accounts for significant annual expenditures by state and federal transportation agencies on bridge maintenance, repair, or replacement. With the rising costs of materials ...