Rational decisions about cost-effecctive bridge designs, optimum inspection strategies and repair are hampered by the absence of comprehensive data on the mechanical performance of deteriorated concrete elements. One of the most important causes of concrete deterioration is corrosion of the steel reinforcement. In general corrosion of reinforcement is believed to affect the structural performance of concrete elements in two ways. First, by increasing the stress concentration on the rebar cross section, due to corrosion-induced reduction in the rebar cross-sectional area, which may lead to premature failure if the stresses in the rebar exceeds its yield strength. Second, by weakening the transmission of stresses in the composite resulting from the loss of bond strength between concrete and the steel reinforcement and the growth of cracks due to the formation of corrosion products at concrete/reinforcement interface. As part of a 'Brite Euram' Project, sponsored by the E.E.C., the author has developed procedures for assessing the influence of reinforcement corrosion on the structural performance of reinforced concrete flexural members. The experimental work was carried out on reinforced concrete beams which were subjected to accelerated reinforcement corrosion and then tested in flexure. Corrosion was induced in reinforcement by means of two external power supplies. The results obtained from the experiments show that reinforcement corrosion reduced the stiffness and the load carrying capacity of concrete beams significantly. Structural analysis and reliability analysis techniques were applied to the results of the study, and simple models for predicting the flexural load capacity of corroded beams were produced. The effect of reinforcement corrosion on the bond strength at the steel/concrete interface was also investigated. The results of the study provide evidence to indicate a trend of increased bond strength associated with small degrees of corrosion in reinforcement (≤0.4% reduction in rebar diameter).

Thesis (M.S.)--Rochester Institute of Technology, 1992. / Typescript. Includes bibliographical references (leaves 238-241).

Thesis--PlanA (M.S.)--University of Wisconsin--Stout, 1993. / Includes bibliographical references.

Thesis (M.S.)--Ohio University, August, 1995. / Title from PDF t.p.

Thesis--PlanA (M.S.)--University of Wisconsin--Stout, 1998. / Includes bibliographical references.

Thesis (Ph. D.)--University of Texas at Austin, 1998. / Vita. Includes bibliographical references (leaves 797-811). Available also in a digital version from Dissertation Abstracts.

Thesis (M.S.)--West Virginia University, 2003 / Title from document title page. Document formatted into pages; contains xiii, 186 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 147-155).

Thesis (M.S.)--Oregon State University, 2010. / Printout. Includes bibliographical references (leaves 112-115). Also available on the World Wide Web.

Thesis (Ph. D.)--University of Washington, 1981. / Vita. Includes bibliographical references.

abstract: It is widely recognized that dietary protein induces greater satiety compared to carbohydrate and fat. Two separate trials were conducted to assess the use of protein as a dietary approach to manage energy intake (EI). The first, crossover trial, examined 24&ndash; hour EI after consuming a high protein bar (HP) vs. a high carbohydrate (HC) bar upon awakening on two separate days and a control, no bar day. Of the 54 participants who entered the trial, 37 subjects completed the study in its entirety. Results showed there was no significant difference in mean EI between the intervention days when the bars were consumed and the control day. The subjects consumed 1752±99 kcal on the control day, and 1846&plusmn;75 and 1891&plusmn;110 kcal on the days the HP and HC bars were consumed, respectively (P=0.591). However, compared to the control day, snack bar ingestion was significantly related to an increase in EI for the subjects who self-reported high weekly physical activity levels (n=11) (+22%; P=0.038 and +45%; P=0.030, HP and HC bars, respectively). These data suggest that individuals who have moderate to low physical activity levels compensate for the ingestion of energy bars (regardless of protein content) over a 24&ndash;hour period. The second parallel-arm, pilot trial examined the effect of 6 g daily gelatin ingestion vs. control on EI and weight change in healthy, overweight and obese women who initiated a walking program. Of the 37 women who entered the trial, 28 completed the six week trial. The results showed activity level (steps/d) increased in both groups (+ 22%, P=0.022). There was a significant group difference in mean EI at week 6 vs. baseline (&ndash;174&plusmn;612 kcal/d and +197&plusmn;320 kcal/d, P=0.001; gelatin and control groups, respectively). However, there was no significant between group difference for changes in weight, percent body fat and waist circumference. Those subjects having baseline Disinhibition scores of &ge;12 gained significantly more weight throughout the study vs. those scoring <12 (P=0.004). These results indicate that daily gelatin ingestion may be a practical strategy for controlling EI among overweight and obese women initiating an exercise program. / Dissertation/Thesis / Ph.D. Physical Activity, Nutrition and Wellness 2012