Masters Theses

Abstract

"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.

Advisor(s)

Myers, John

Committee Member(s)

Birman, V. (Victor)
Sneed, Lesley

Department(s)

Civil, Architectural and Environmental Engineering

Degree Name

M.S. in Civil Engineering

Publisher

Missouri University of Science and Technology

Publication Date

Fall 2010

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

Pagination

xiv, 232 pages

Note about bibliography

Includes bibliographical references.

Rights

© 2010 Courtney Elizabeth Greene, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Subject Headings

Fiber-reinforced concrete -- TestingCoatings -- EvaluationGlass-reinforced plastics -- Mechanical propertiesConcrete beams -- FatigueStrength of materials

Thesis Number

T 10193

Print OCLC #

863048265

Electronic OCLC #

908692633

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