"Wide varieties of concrete repair-retrofit and strengthening methods have been developed and are being widely implemented. In recent years, the need for such strengthening systems has become apparent with increasing demands on aging infrastructure. These strengthening systems need to be increasingly more adaptable, providing ease of construction as well as withstanding a variety of loading conditions and hazards. Exterior-applied fiber-reinforced polymer systems are increasingly being used to meet these demands. The research contained herein investigates the strengthening benefits and characteristics from a specific glass fiber-reinforced polyurea coating system applied externally to structures by means of spraying. This coating would allow for greater ease of construction and would thus be useful in repair-retrofit situations. In addition, the coating system is intended to provide multi-hazard benefits, ranging from blast fragmentation mitigation and impact or seismic loading to general strengthening.
Investigation of the glass fiber-reinforced polyurea coating system was conducted at the Missouri University of Science & Technology (Missouri S&T) in conjunction with the Center for Awareness and Localization of Explosives-Related Threats (ALERT) through the Department of Homeland Security (DHS). The strengthening effects of the described coating system were observed on small concrete cylinders and larger reinforced concrete (RC) beams tested for flexural and shear types of failure. Results show a significant impact on the flexural strength and shear strength of RC beams strengthened with the coating system. Included is a theoretical model to estimate the additional flexural capacities of polyurea-coated RC beams which was developed and validated with test results"--Abstract, page iv.
Birman, V. (Victor)
Civil, Architectural and Environmental Engineering
M.S. in Civil Engineering
Missouri University of Science and Technology
Journal article titles appearing in thesis/dissertation
- Compressive behavior of concrete cylinders strengthened with a discrete fiber reinforced polymer system
- Flexural and shear behavior of reinforced concrete members strengthened with a discrete fiber-reinforced polymer system
xiv, 232 pages
© 2010 Courtney Elizabeth Greene, All rights reserved.
Thesis - Restricted Access
Library of Congress Subject Headings
Fiber-reinforced concrete -- Testing
Coatings -- Evaluation
Glass-reinforced plastics -- Mechanical properties
Concrete beams -- Fatigue
Strength of materials
Print OCLC #
Electronic OCLC #
Link to Catalog RecordElectronic access to the full-text of this document is restricted to Missouri S&T users. Otherwise, request this publication directly from Missouri S&T Library or contact your local library.http://laurel.lso.missouri.edu:80/record=b10158105~S5
Greene, Courtney Elizabeth, "Glass fiber-reinforced polyurea strengthening of reinforced concrete" (2010). Masters Theses. 4486.