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Now showing items 51-60 of 62
Ultra-High Performance Concrete for Connections of Precast, Prestressed Girders Made Continuous for Live Load
(2019-08-01)
Continuity joints have often been employed in bridges with precast, prestressed girders to increase the overall ability of bridges to distribute live loads by making two simple spans continuous. However, if the continuity ...
Evaluation of Surface Preparation and Bond Angle Combinations for Joint Replacement using Ultra-High Performance Concrete
(2018-05-12)
Deterioration of bridges is often attributed to declining performance of the longitudinal connections between precast members or transverse deck joints. Ultra-high performance concrete (UHPC) is a cementitious composite ...
INFLUENCE OF RETARDERS ON SHRINKAGE AND COMPRESSIVE STRENGTH IN RAPID SET CONCRETE
(2018-05-12)
The purpose of this project is to study the influence and behavior of citric acid on calcium sulfoaluminate (CSA) concrete and compare with industry standard retarders. A review of the available literature on calcium ...
Factors influencing rates and products in the transformation of carbon tetrachloride by zerovalent iron metal
(2003)
Batch experiments were conducted to study the influence of iron purity and
solution chemistry, i.e., pH and common groundwater species such as HS-, HCO3- and
Mn(II), on the anaerobic degradation of carbon tetrachloride ...
Assessment of Partial Joint Penetration Welds on Bolted End-plate Connections for use in Intermediate Moment Frames
(2016-05-13)
End-plate moment connections are a very common connection type used in the metal building industry today. Bolted end-plate connections are found where a rafter is joined to a column and consist of a steel plate welded to ...
The effects of temperature on compressive strength of rapid setting concrete
(2011)
Rapid setting concrete using Calcium Sulfoaluminate (CSA) cement has been around since the 1960's to meet the need for construction projects with limited time frames. These projects range from quick foundation work to rapid ...
The Use of Recycled Material Backfills to Mitigate the Effects of Expansive Soils on Subterranean Structures
(2016)
The extreme annual weather patterns of the Midwest United States have created a demand for basements as emergency shelters in both residential and commercial structures. However, with the majority of the Midwest experiencing ...
INTERNAL CURING OF CALCIUM SULFOALUMINATE CEMENT CONCRETE USING LIGHTWEIGHT AGGREGATE
(2018-05-12)
Calcium sulfoaluminate (CSA) cement is a very rapid setting, hydraulic cement that releases approximately half as much carbon dioxide during production as conventional portland cement. CSA cement produces concrete with ...
Modeling and Evaluation of Constituents of Emerging Concern Through Wastewater Treatment Processes
(2016-05-13)
Constituents of emerging concern (CECs) have accumulated in drinking water source supply over the past decades. Although there are currently no established treatment standards, CECs should be of concern to the public and ...
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 ...