Author: Paul D. KraussPublisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 136
Book Description
Transverse Cracking in Newly Constructed Bridge Decks
Author: Paul D. KraussPublisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 136
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 Cooperative Highway Research Program Report
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.
HRIS Abstracts
Author: National Research Council (U.S.). Highway Research BoardPublisher:
ISBN:
Category : Highway engineering
Languages : en
Pages : 840
Book Description
Transportation Research Record
Author: Publisher:
ISBN:
Category : Air quality management
Languages : en
Pages : 716
Book Description
Government Reports Announcements & Index
Author: Performance and Constructability of Silica Fume Bridge Deck Overlays
Author: Gerald G. MillerPublisher:
ISBN:
Category : Bridges
Languages : en
Pages : 478
Book Description
The effects of construction practices and material properties on the performance of concrete bridge decks are evaluated. Emphasis is placed on comparing bridge decks with silica fume and conventional concrete overlays and determining if the silica fume overlays commonly used on bridges in Kansas are performing at a level that justifies the extra cost and construction precautions. Forty continuous steel girder bridges, 20 with silica fume overlays, 16 with conventional overlays and four with monolithic bridge decks are included in the study.
Government Reports Annual Index
Author: Publisher:
ISBN:
Category : Research
Languages : en
Pages : 1428
Book Description
Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Author: