Latex Modified Concrete Bridge Deck Overlays-field Performance Analysis: Main report PDF Download
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Author: Alfred G. Bishara
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 118
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Book Description
Author: Alfred G. Bishara
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 118
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Book Description
Author: Bishara, Alfred G.
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 96
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Book Description
Author: W. P. Chamberlin
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 291
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Book Description
Author: Delmo E. Koop
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 40
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Book Description
Portland cement concrete overlay surfacings for bridge decks which will effectively resist de-icing salt solution penetration are a major concern. The report compares the relative effectiveness of latex modified concrete and high density concrete overlays.
Author: H. G. Russell
Publisher: Transportation Research Board
ISBN: 0309070112
Category : Bridges
Languages : en
Pages : 188
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Book Description
At head of title: National Cooperative Highway Research Program.
Author:
Publisher:
ISBN:
Category : Concrete bridges
Languages : en
Pages : 48
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Book Description
Author: V. Ramakrishnan
Publisher: Transportation Research Board
ISBN: 9780309053037
Category : Technology & Engineering
Languages : en
Pages : 76
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Book Description
This synthesis wil be of interest to materials engineers, construction engineers, maintenance engineers, pavement contractors and others interested in the use of latex-modified mortars (LMM) and concretes ( LMC). Information is provided on material properties of various LMM and LMC, as well as current construction practices used for LMM and LMC. Potential applications for LMM and LMC are also included. The use of innovative modified portland cement mortars and concretes for construction and maintenance applications is growing. This report of the Transportation Research Board describes the current state of the practice with respect to the use of latex-modified portland cement concretes and mortars. The extent of use of each material (including case histories), based on results of surveys of state highway agencies and a review of the literature, is summarized.
Author: Osama Ahmed Abdulshafi
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 286
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Book Description
This study is an investigation of the cause(s) of premature failure of latex modified concrete (LMC) bridge deck overlays in Ohio. Data and materials for 93 bridge decks overlaid with LMC were collected from five Ohio Department of Transportation Districts. Additional materials were collected and evaluations were conducted through monitoring the construction of seven LMC bridge deck overlays. Overall documentation and evaluation of the overlays and materials obtained are discussed; this includes field survey activities, construction monitoring and laboratory testing and analysis. Characteristics of the LMC mixtures and materials are evaluated and compared to acceptable standards. General findings were that most of the problems were due to the underlying old deck which was contaminated with chloride ions, previously undetected due to insufficient testing. Other conclusions are presented separately under construction monitoring, field surveys, and laboratory testing and analysis.
Author: Shibin Lin
Publisher:
ISBN:
Category : Bridge decks
Languages : en
Pages : 246
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Book Description
Concrete bridge deck overlays have been used in the United States since 1960 to extend the service life of deteriorated concrete bridge decks and improve reliability. Concrete bridge decks with overlays suffer various types of deterioration, so it is necessary to identify and assess the effectiveness of different nondestructive evaluation (NDE) technologies in the laboratory under controlled conditions and in the field under actual conditions. This report provides an overview of seven types of widely used overlays: asphalt with a liquid membrane, asphalt with a fabric membrane, asphalt without a membrane, silica fume-modified concrete, latex-modified concrete (LMC), epoxy polymer concrete, and polyester polymer concrete. This report identifies and ranks available and promising NDE technologies to assess the performance of different types of overlays and concrete bridge decks. This report describes laboratory validation on overlays for nine commonly used NDE technologies. The nine NDE technologies are: sounding, ultrasonic surface waves (USW), impact echo (IE), ultrasonic tomography (UT), impulse response (IR), ground-penetrating radar (GPR), electrical resistivity (ER), half-cell potential (HCP), and infrared thermography (IRT). This report details the results of laboratory tests validating the NDE technologies for the seven different types of overlays. Field validation using the RABITTM bridge deck assessment tool and manual testing equipment was also performed. Results from the study on which this report is based indicated that GPR was the most effective method for detecting defects in underlying concrete specimens through both bonded and debonded overlays; however, GPR could not detect overlay debonding. Results also showed that USW, IE, and UT were effective stress-wave-based methods for detecting defects under bonded overlays but not asphalt overlays. Researchers found that asphalt overlays at low temperatures (i.e., 32°F or below) improved the applicability of
Author: Missouri. Highway and Transportation Department. Division of Materials and Research
Publisher:
ISBN:
Category : Concrete bridges
Languages : en
Pages : 72
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Book Description
