Field Investigation of High-Performance Concrete Bridge Decks in South Carolina

2001 ◽  
Vol 1770 (1) ◽  
pp. 12-19
Author(s):  
Michael F. Petrou ◽  
Kent A. Harries ◽  
Gerald E. Schroeder
Keyword(s):  
South Carolina ◽  
High Performance ◽  
High Performance Concrete ◽  
Bridge Decks ◽  
Field Investigation ◽  
Concrete Bridge ◽  
Concrete Bridge Decks

Instrumentation and Analysis of High-Performance Concrete Bridge Decks

2005 ◽  
Vol 1914 (1) ◽  
pp. 85-96 ◽  
Author(s):  
Matthew D. D'Ambrosia ◽  
David A. Lange ◽  
Zachary C. Grasley ◽  
Jeffery R. Roesler ◽  
Chang Joon Lee ◽  
...  
Keyword(s):  
High Performance ◽  
High Performance Concrete ◽  
Bridge Decks ◽  
Drying Shrinkage ◽  
Field Investigation ◽  
Thermal Shrinkage ◽  
Early Age ◽  
Concrete Bridge ◽  
Stress Development ◽  
Concrete Bridge Decks

The use of high-performance concrete (HPC) for transportation structures was the subject of a 3-year study that involved field investigation, laboratory experiments, analysis, and modeling. The field study involved instrumentation and analysis of six HPC bridge decks. The laboratory component characterized early-age thermal, shrinkage, creep, and cracking behaviors. A three-dimensional finite element model was used in conjunction with material models to analyze and predict creep and shrinkage behavior and to investigate structural and material interactions. This paper focuses on the field component of the project and discusses the instrumentation, deformation measurements, and analysis of bridge decks in Illinois. The bridges were instrumented to understand the development of shrinkage and thermal stress in concrete bridge decks with the use of various materials and structural components. The results indicate that the stress development due to daily temperature cycles and long-term temperature changes are relatively small compared with the stress development due to drying shrinkage. According to model simulations, a 15% to 40% reduction in shrinkage would reduce the stress level enough to prevent most cracking. Although drying shrinkage is the major driving force for stress development, the interaction of concrete shrinkage and structural restraint influences the magnitude of the stress and is linked to the propensity for early-age cracking.

scholarly journals Shrinkage in Ultra-High Performance Concrete Overlays on Concrete Bridge Decks

2019 ◽  
Vol 271 ◽  
pp. 07008
Author(s):  
William Toledo ◽  
Leticia Davila ◽  
Ahmed Al-Basha ◽  
Craig Newtson ◽  
Brad Weldon
Keyword(s):  
High Performance ◽  
High Performance Concrete ◽  
Bridge Decks ◽  
Plastic State ◽  
Early Age ◽  
Concrete Bridge ◽  
Ultra High Performance Concrete ◽  
Concrete Overlays ◽  
Concrete Bridge Decks ◽  
Normal Strength

This paper investigates the shrinkage and thermal effects of an ultra-high performance concrete (UHPC) mixture proposed for use as an overlay material for concrete bridge decks. In this study, early-age and longer-term shrinkage tests were performed on the locally produced UHPC. Thermal and shrinkage effects in normal strength concrete slabs overlaid with UHPC were also observed. Early-age shrinkage testing showed that approximately 55% of the strain occurred in the plastic state and may not contribute to bond stresses since the elastic modulus of the UHPC should be small at such early ages. Thickness of the substrate and amount of reinforcing steel were important factors for shrinkage in the slabs. The thickest slab experienced greater shrinkage than thinner slabs. Comparing this slab to a thinner slab with the same reinforcement indicated that reinforcement ratio is more important than the area of steel.

scholarly journals Low-Cracking, High-Performance Concrete Bridge Decks

2010 ◽  
Vol 2202 (1) ◽  
pp. 61-69 ◽  
Author(s):  
David Darwin ◽  
Joann Browning ◽  
Will Lindquist ◽  
Heather A. K. McLeod ◽  
Jiqiu Yuan ◽  
...  
Keyword(s):  
High Performance ◽  
High Performance Concrete ◽  
Bridge Decks ◽  
Concrete Bridge ◽  
Concrete Bridge Decks
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