No description available.

Many researchers have identified concerns with steel corrosion in concrete structures. This thesis investigates the serviceability of concrete structures reinforced with Fiber Reinforced Polymer (FRP) material. The distinctive properties of the reinforcement influence the analysis and design of structures. An alternate expression for effective moment of inertia was derived to consider these differences and improve the estimation of deflection for concrete beams reinforced with FRP. Serviceability issues encountered with FRP reinforced concrete structures were also addressed by exploring Prestressed Concrete Prisms (PCPs) as reinforcement. They are small sections of high strength concrete cast around a concentrically pre-tensioned FRP reinforcing bar. The technique enhances axial stiffness of the bar and flexural stiffness of concrete beams. Thermal weathering was investigated by subjecting beams to temperature fluctuations expected in the Canadian climate. Inclusion of dispersed fibers in the PCP reinforcement and surface deformations was also studied to determine the influence on post-cracking behaviour.

The purpose of this project was to evaluate two types of concrete surfaces and analyze the effect of each finish on the air content, paste content, aggregate fraction and rate of absorption at various depths from the surface. For this project, nine concrete mixtures were evaluated with varying cement, water and air contents. Slabs were cast and two types of finishes were considered: a trowel-finished made with a magnesium trowel and a form-finished from the plywood molds used. Cores were taken from the slabs and tested at 0, 5, 10, and 20mm below the surface.

The purpose of this project was to evaluate two types of concrete surfaces and analyze the effect of each finish on the air content, paste content, aggregate fraction and rate of absorption at various depths from the surface. For this project, nine concrete mixtures were evaluated with varying cement, water and air contents. Slabs were cast and two types of finishes were considered: a trowel-finished made with a magnesium trowel and a form-finished from the plywood molds used. Cores were taken from the slabs and tested at 0, 5, 10, and 20mm below the surface.

No description available.

No description available.

Many researchers have identified concerns with steel corrosion in concrete structures. This thesis investigates the serviceability of concrete structures reinforced with Fiber Reinforced Polymer (FRP) material. The distinctive properties of the reinforcement influence the analysis and design of structures. An alternate expression for effective moment of inertia was derived to consider these differences and improve the estimation of deflection for concrete beams reinforced with FRP. Serviceability issues encountered with FRP reinforced concrete structures were also addressed by exploring Prestressed Concrete Prisms (PCPs) as reinforcement. They are small sections of high strength concrete cast around a concentrically pre-tensioned FRP reinforcing bar. The technique enhances axial stiffness of the bar and flexural stiffness of concrete beams. Thermal weathering was investigated by subjecting beams to temperature fluctuations expected in the Canadian climate. Inclusion of dispersed fibers in the PCP reinforcement and surface deformations was also studied to determine the influence on post-cracking behaviour.

No description available.

No description available.

Thesis (Ph. D.)--University of Canterbury, 2007. / Typescript (photocopy). "April 2007." Includes bibliographical references (p. 275-289). Also available via the World Wide Web.