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Home > Publications > International Concrete Abstracts Portal
Showing 1-4 of 4 Abstracts search results
Document:
95-S60
Date:
November 1, 1998
Author(s):
Radhouane Masmoudi, Michele Theriault and Brahim Benmokrane
Publication:
Structural Journal
Volume:
95
Issue:
6
Abstract:
Fiber reinforced plastic (FRP) reinforcing bars are being used as an alternative to steel reinforcement to overcome the corrosion problem in bridge decks, parking garages, water and wastewater treatment facilities, marine structures, and chemical plants. This paper presents test results of concrete beams reinforced with FRP and conventional steel reinforcement. The beams were tested under static loading to investigate the effects of reinforcement ratio on cracking, deflection, ultimate capacities, and modes of failure. Based on this investigation, theoretical correlations for the prediction of crack width, maximum deflection, and ultimate load-carrying capacity are proposed.
DOI:
10.14359/580
92-S24
March 1, 1995
ACI Committee 224
92
2
This report reviews the state of the art in design, construction, and mainte-nance of joints in concrete structures subjected to a wide variety of use and environmental conditions. In some cases, the option of eliminating joints is considered. Aspects of various joint sealant materials and jointing techniques are discussed. The reader is referred to ACI 504R for a more comprehensive treatment of sealant materials, and to ACI 224R for a broad discussion of the causes and control of cracking in concrete construction. Chapters in the report focus on various types of structures and structural elements with unique characteristics: buildings, bridges slabs on grade, tunnel linings, canal linings, precast concrete pipe, liquid-retaining structures, walls, and mass concrete.
10.14359/9656
89-M20
March 1, 1992
Donald Pratt and Mary Sansalone
Materials Journal
89
Discusses advancements in impact-echo instrumentation and signal processing that have led to the development of an automated field system. The basic principles involved in impact-echo testing and signal analysis are reviewed. An artificial intelligence technique called a neural network, which has been used to automate signal interpretation from platelike concrete structures, is explained, and examples of its use on concrete slabs containing voids and cracks are shown. Impact-echo instrumentation is discussed, and a new, rapid impact-echo field system is presented. This field system can be used independently when testing concrete structures, such as beams or columns, or in conjunction with the automated signal interpretation software when testing plate-like structures, such as bridge decks, parking garage slabs, and walls. The automated field system makes it possible for the impact-echo test method to become a practical nondestructive tool for condition assessment of concrete structures.
10.14359/2265
85-S13
January 1, 1988
ACI Committee 357
85
1
Report addresses the range of current engineering experience for the design and construction of floating, barge-like concrete structures. A brief discussion of past and present structures and design concepts is presented to establish both the versatility and technical viability of concrete barge-like marine structures. Barge-like concrete structures are used at both sheltered and exposed sites. The marine environment can be both severe and highly unpredictable, necessitating unique design requirements for floating concrete structures. In addition, barge-like structures serve a wide variety of uses such as industrial plantships, floating bridges, floating docks, parking and hotel structures, and other applications, and as such, further attest to the wide range of possible design requirements. Design loads and recommended design criteria are presented. Design procedures and methods of analysis are discussed to better acquaint the reader with the design considerations that are unique to barge-like marine structures. Methods used to construct barge-like concrete structure play a major role in the success of each application. Construction methods and materials used for recent applications are presented to demonstrate the importance of the construction process during the planning and design of marine concrete structures. Important aspects of delivery from the construction site and installation at the deployment site are presented. The durability and serviceability of barge-like structures at remote sites are important considerations to project planners and developers. Construction material selection and inspection, maintenance, and repair techniques are discussed.
10.14359/3161
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