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Identification of Piecewise Flexural Rigidity of a Prestressed Concrete Bridge Girder
(2019)
Aging infrastructure calls for structural health monitoring for recommendations on load postings, retrofitting, or replacements. Flexural rigidity identification has been used to monitor aging precast pretensioned concrete ...
Comparative Study of Surface Preparation And Bond Angle Combinations For Bridge Repair Using Ultra-High Performance Concrete Alternative
(2018-12)
Ultra-high performance concrete (UHPC) is a type of concrete with advanced mechanical properties compared to normal strength concrete and that can be used for connections and repairs in bridges. Most UHPC used in the field ...
Quantifying Solar-Powered Removal of Aqueous and Gaseous Sulfide in a Mine Water Passive Treatment System
(2018-12-14)
Passive treatment systems can improve water quality for mine water discharges. However, some process units, like vertical flow bioreactors (VFBRs), may produce excess sulfide, which can be a source of nuisance odors and ...
Design Guidance for Installing Vibration Sensitive Equipment in Industrial Facilities
(2016-08)
The need to understand floor vibrations in an industrial facility has increased in recent years as the drive for tighter manufacturing tolerances has increased. This drive has led to an increase in manufacturing equipment ...
RHEOLOGICAL PROPERTIES OF POLYMER AND RAP MODIFIED ASPHALT BINDERS USING MULTIPLE STRESS CREEP AND RECOVERY METHOD
(2016-12)
In recent years, asphalt modifications have become increasingly popular in asphalt pavement construction. Also, in view of technical, environmental and economic benefits, the pavement industry is in favor of using high ...
EFFECTS OF SEISMIC LOADING ON OKLAHOMA HIGHWAY BRIDGES
(2016)
Since 2006, the number of magnitude (M) 3.0 and larger earthquakes occurring in Oklahoma
has increased dramatically. Large magnitude (> 5:0) events have caused damage
to residential structures, which raises a concern ...
Investigation of Chemically Prestressed Concrete
(2018-05-12)
This research investigated the possibility of prestressing a concrete element by inducing expansion of the concrete paste at an early age. This behavior is being called chemically prestressed concrete, for this project, ...
Development of Non-Proprietary Ultra-High-Performance Concrete Mix Designs
(2017-12)
Ultra-High-Performance Concrete (UHPC) is defined by the Federal Highway Administration (FHWA) as having a compressive strength of 21.7 ksi (kilo-pounds per square inch), a post-cracking tensile strength 0.72 ksi, and high ...
Performance of Fiber-Reinforced Eco-Friendly Concrete for Bridge Structures
(2016-08-12)
Concrete is the leading building material in the world due to its readily available materials, strength, durability, and relatively low cost. With cities growing at a more rapid pace, the demand for concrete is increasing. ...
CHARACTERIZING THE BEHAVIOR OF CONCRETE CAST WITH TYPE K SHRINKAGE COMPENSATING CEMENT WHEN PLACED UNDER MECHANICAL RESTRAINT
(2018-05-12)
The purpose of this research was to determine whether shrinkage-compensating concrete (SCC) made with Type K cement is capable of offsetting the effects of early age drying shrinkage, specifically when the concrete is acted ...