Author: Irene K. BattagliaPublisher:
ISBN:
Category : Bridges
Languages : en
Pages : 26
Book Description
Exodermic Bridge Deck Performance Evaluation
Author: Irene K. BattagliaPublisher:
ISBN:
Category : Bridges
Languages : en
Pages : 26
Book Description
Evaluation of Bridge Deck Protective Strategies
Author: Khossrow BabaeiPublisher: Transportation Research Board National Research
ISBN:
Category : Science
Languages : en
Pages : 92
Book Description
Technologies for Improving the Evaluation and Repair of Concrete Bridge Decks
Author: Concrete Bridge Deck Performance
Author: H. G. RussellPublisher: Transportation Research Board
ISBN: 0309070112
Category : Bridges
Languages : en
Pages : 188
Book Description
At head of title: National Cooperative Highway Research Program.
Evaluation of Concrete Deck and Crack Sealers
Author: José Antonio PincheiraPublisher:
ISBN:
Category : Concrete bridges
Languages : en
Pages : 166
Book Description
Cracking in Concrete Bridge Decks
Author: Tony R. SchmittPublisher:
ISBN:
Category : Concrete bridges
Languages : en
Pages : 174
Book Description
The causes of cracking in bridge decks are investigated and procedures are recommended to alleviate the problem. Forty continuous steel girder bridges, thirty-seven composite and three noncomposite bridges are evaluated. Field surveys conducted to document cracking patterns and to determine the crack density of each bridge are described. Information collected from construction documents, field books, and weather data logs is presented and compared to the observed levels of cracking to identify correlations between cracking and the variables studied. Thirty-one variables are considered such as material properties, site conditions, construction procedures, design specifications, age of bridge and traffic volume. Based on the research reported herein, cracking in monolithic bridge decks increases with increasing values of concrete slump, percent volume of water and cement, water content, and compressive strength, and decreasing values of air content (especially below 6.0%). Bridge deck overlays placed with zero slump concrete consistently exhibit high levels of cracking. Cracking in overlays also increases as placement lengths increase. High maximum air temperatures and large changes in air temperature on the day of casting aggravate cracking in monolithic bridge decks. High average air temperatures and large changes in air temperature similarly aggravate cracking in bridge deck overlays. Both monolithic and two layer bridges with fixed-ended girders exhibit increased cracking near the abutments compared to those with pin-ended girders.
National Experimental Projects Tabulation
Author: In-situ Monitoring and Testing of IBRC Bridges in Wisconsin
Author: Nondestructive Testing to Identify Concrete Bridge Deck Deterioration
Author: Publisher: Transportation Research Board
ISBN: 0309129338
Category : Technology & Engineering
Languages : en
Pages : 96
Book Description
" TRB's second Strategic Highway Research Program (SHRP 2) Report S2-R06A-RR-1: Nondestructive Testing to Identify Concrete Bridge Deck Deterioration identifies nondestructive testing technologies for detecting and characterizing common forms of deterioration in concrete bridge decks.The report also documents the validation of promising technologies, and grades and ranks the technologies based on results of the validations.The main product of this project will be an electronic repository for practitioners, known as the NDToolbox, which will provide information regarding recommended technologies for the detection of a particular deterioration. " -- publisher's description.
Impact of Deck Cracking on Durability
Author: Fouad FanousPublisher:
ISBN:
Category : Bridges
Languages : en
Pages : 132
Book Description
Concrete bridge decks subjected to corrosive environment because of the application of de-icing chemical could deteriorate at a rapid rate. In an effort to minimize corrosion of the reinforcement and the corresponding delaminations and spalls, the Iowa Department of Transportation started using epoxy-coated rebars (ECR) in the top mat of reinforcing around 1976 and in both mats 10 years later. The overall objective of this research was to determine the impact of deck cracking on durability and estimate the remaining functional service life of a bridge deck. This was accomplished by conducting a literature review, visually inspecting several bridge decks, collecting and sampling test cores from cracked and uncracked areas of bridge decks, determining the extent to which epoxy-coated rebars deteriorate at the site of cracks, and evaluating the impact of cracking on service life.