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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
91

Flexural strengthening of reinforced concrete beams by bolted side plates

Siu, Wing-ho., 蕭永皓. January 2009 (has links)
published_or_final_version / Civil Engineering / Doctoral / Doctor of Philosophy
92

Synthetic Fiber Reinforced Concrete in Marine Environments and Indirect Tension Test

Unknown Date (has links)
An experiment was conducted to evaluate the durability, toughness, and strength of Synthetic Fiber Reinforced Concrete after being immersed in five separate environments for one year at FAU SeaTech. The specimens were molded and reinforced with two-inch Polypropylene/Polyethylene Fibers in a concrete aggregate matrix and were cut into identical sizes. Some of these environments had accelerated parameters meant to increase degradation to simulate longevity and imitate harsh environments or seawater conditions. The environments consisted of: a high humidity locker (ideal conditions), submerged in the Intracoastal Waterway (FAU barge), seawater immersion, a wet and dry seawater immersion simulating a splash/tidal zone, and another in low pH seawater. The latter three were in an elevated temperature room (87-95°F) which produced more degradative properties. The specimens were monitored and the environments were controlled. The specimens were then evaluated using the IDT test method using force to initiate first-cracking and post-cracking behaviors. / Includes bibliography. / Thesis (M.S.)--Florida Atlantic University, 2018. / FAU Electronic Theses and Dissertations Collection
93

Strength and toughness of HDPE fiber reinforced aggregate concrete as a sustainable construction material

Unknown Date (has links)
An experimental study was conducted on the strength and toughness characteristics of concrete made from recycled aggregate, cement and fly ash reinforced with reclaimed high density polyethylene plastic (HDPE) fibers. The objectives of the investigation were: (1) to evaluate the performance of a sustainable concrete containing up to 90% recycled materials; (2) to determine the variation of strength and toughness with a Fiber Factor incorporating length, width and amount of HDPE fibers; (3) to identify the best performing mix design based on tensile strength and toughness and (4) to provide some guidelines for the use of this sustainable composite in Civil Engineering construction. The results showed that the HDPE fiber reinforcements did not improve the compressive strength of the mixture. However, HDPE fibers improved the ductility and toughness which may be beneficial for structural and pavement applications. / by Roody Numa. / Thesis (M.S.C.S.)--Florida Atlantic University, 2011. / Includes bibliography. / Electronic reproduction. Boca Raton, Fla., 2011. Mode of access: World Wide Web.
94

Fire Performance of Reinforced Concrete Slabs

Levesque, Adam Paul 28 April 2006 (has links)
In the United States design for fire safety follows a prescriptive code-based approach. Building codes detail the types of construction materials, assemblies, and fire suppression systems that are required for various building types. This prescriptive method has prevented structural engineers from exposure to performance-based design approaches for fire safety. The motivation for this thesis was to increase the awareness of the structural engineering field to the concepts behind structural design for fire safety. Extensive research has been published on the performance of structural steel in fire conditions, and simplified design tools already exist to describe its behavior. Such tools do not exist for reinforced concrete structures. Research on concrete has been more focused on material properties rather than structural performance. This thesis presents a simplified design tool which assesses the fire performance of reinforced concrete. An Excel-based spreadsheet application was developed for thermal analysis of concrete slabs. It accounts for different aggregate types, slab thicknesses, and fire exposures. Several analyses were performed with the spreadsheet application to examine the affect slab thickness and aggregate types have on the fire performance of concrete slabs in standard and natural fires. The results were compared with published test data and finite element software simulations to benchmark the accuracy of the proposed tool. Furthermore, methods for the design of reinforced concrete slabs in fire conditions are presented.
95

Flexural strengthening of reinforced concrete beams by bolted side plates

Siu, Wing-ho. January 2009 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2009. / Includes bibliographical references (p. 237-242). Also available in print.
96

Viscoelastic analysis of reinforced concrete structures.

Sheikh, Muhammad Akber. January 1971 (has links)
No description available.
97

Strenghtening of reinforced concrete bridge decks with carbon fiber composites

Rubin, Ariel 08 1900 (has links)
No description available.
98

Laboratory study of concrete produced with admixtures intended to inhibit corrosion

Okunaga, Grant J January 2005 (has links)
Thesis (M.S.)--University of Hawaii at Manoa, 2005. / Includes bibliographical references (leaves 120-121). / xii, 282 leaves, bound ill. (some col.) 29 cm
99

Seismic behaviour of existing and rehabilitated reinforced concrete frame connections /

Biddah, Ashraf Mahmoud Samy. January 1997 (has links)
Thesis (Ph.D) -- McMaster University, 1997. / Includes bibliographical references (p. 317-326). Also available via World Wide Web.
100

Modelling the behaviour of steel fibre reinforced concrete pavements

Elsaigh, Walied Ali Musa Hussien. January 2007 (has links)
Thesis (PhD(Transportation Engineering)(Civil Engineering)) --University of Pretoria, 2007. / Includes bibliographical references.

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