Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 39 for “"Concrete Bridge deck"”.
-
Evaluation of concrete bridge deck overlays
… been used by many states for the protection of bridge decks, but the premature delaminations and failures have been observed in many cases. A comprehensive study was recently defined to investigate overlay performance in collaboration with the West Virginia Department of Transportation-Division …
-
Performance of Concrete Bridge Deck Joints
… the types of joints available for use on concrete bridge decks and to investigate the performance characteristics of each type, including primary functions and movement ranges. Eleven reports on joint performance published by state departments of transportation and universities nationwide …
-
Performance of Concrete Bridge Deck Surface Treatments
… types of surface treatments available for use on concrete bridge decks and to determine which materials are most capable of providing long-term protection from contamination by chloride ions. The products addressed in this report primarily include urethanes, silicon-based sealers, and epoxies. An …
-
Concrete bridge deck assessment using thermography and radar
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1987.
-
Development of an Index for Concrete Bridge Deck Management in Utah
… of this research was to develop a new index for concrete bridge deck management in Utah. Data were collected in the summer of 2005 from 15 concrete bridge decks in the vicinity of Salt Lake City. The decks ranged from 2 to 21 years in age and were all constructed using epoxy-coated rebar. Visual …
-
Non-Invasive Permeability Assessment of High-Performance Concrete Bridge Deck Mixtures
Concrete construction methods and practices influence the final in-place quality of concrete. A low permeability concrete mixture does not alone ensure quality in-place concrete. If the concrete mixture is not transported, placed and cured properly, it may not exhibit the desired durability and …
-
Horizontal Shear Transfer for Full-Depth Precast Concrete Bridge Deck Panels
Full-depth precast deck panels are a promising alternative to the conventional cast-in-place concrete deck. They afford reduced construction time and fewer burdens on the motoring public. In order to provide designers guidance on the design of full-depth precast slab systems with their full …
-
Recommendations for Longitudinal Post-Tensioning in Full-Depth Precast Concrete Bridge Deck Panels
Full-depth precast concrete panels offer an efficient alternative to traditional cast-in-place concrete for replacement or new construction of bridge decks. Research has shown that longitudinal post-tensioning helps keep the precast bridge deck in compression and avoid problems such as leaking, …
-
Fatigue testing of partial-depth precast concrete bridge deck panels with embedded wire trusses
… into the fatigue behavior of a new precast concrete panel to serve as stay-in-place formwork for the overhang portions of Texas bridge decks. The panel provides structural resistance alongside standard prestressed concrete panels (PCP) to provide formwork across the entire width of a bridge …
-
Digital signature analysis of radar reflections for the assessment of concrete bridge deck deterioration
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1989.
-
The Investigation of Transverse Joints and Grouts on Full Depth Concrete Bridge Deck Panels
… transverse joints and blockouts on full depth concrete bridge deck panels. The joints were designed on a deck replacement project for a rural three span continuous steel girder bridge in Virginia. Two cast-in-place and four post-tensioned joints were designed and tested in cyclical loading. …
-
Performance Criteria Recommendations for Mortars Used in Full-Depth Precast Concrete Bridge Deck Panel Systems
The use of full-depth precast concrete bridge deck panels is becoming more and more attractive to transportation authorities throughout the country. In comparison to conventional cast-in-place decks, precast decks are of higher quality, allow for the bridge to be opened to traffic in less time and …
-
Investigation of Concrete Mixtures to Reduce Differential Shrinkage Cracking in Composite Bridges
… presented in this thesis was to develop a concrete bridge deck topping mixture that resists the effects of differential shrinkage by decreasing shrinkage and increasing creep. . In addition, the amount of tensile creep that concrete experiences under long-term tensile stresses were …
-
Automated Characterization of Bridge Deck Distress Using Pattern Recognition Analysis of Ground Penetrating Radar Data
… with inspecting and evaluating the condition of bridges in the United States. Concrete bridge deck inspection and evaluation presents one of the largest problems. The deterioration of these concrete decks progresses more rapidly than any other bridge component, which leads to early concrete deck …
-
Condition Analysis of Concrete Bridge Decks in Utah
Concrete bridge decks in Utah are experiencing observable deterioration due primarily to freeze-thaw cycles and the routine application of deicing salts during winter maintenance activities. Given the need for increasingly cost-effective strategies for bridge deck maintenance, rehabilitation, and …
-
Nondestructive testing of concrete bridge decks using ground-penetrating radar and the chain drag method
… nondestructive techniques that are used for bridge deck analysis: the chain drag method and ground penetrating radar (GPR). The chain drag testing was performed in the laboratory with 23 simulated concrete bridge deck specimens. The specimens contained varying internal conditions such as …
-
Tensões devidas ao bi-momento em tabuleiros de pontes de concreto armado bi-apoiadas e com contrapesos maciços
… warping stresses in simply supported reinforced concrete bridge deck with bulky counterweights. Initially it is presented a review of the warping moment theory and a proceeding for the analysis of a particular statically indeterminated structure. The type of structure under analysis is that of a …
-
A Load-Deflection Study of Fiber-Reinforced Plastics as Reinforcement in Concrete Bridge Decks
Approximately fifty percent of the bridges in the United States are considered deficient. The deterioration of the concrete components is a leading cause of the problem. The deterioration of concrete bridge decks is due primarily to corrosion of the reinforcing steel in the concrete. A promising …
Page 1 of 2