Supplement to the bridge resource program : state-of-the-art practices of mass concrete - a literature review.

Details

• Creators:
  Szary, Patrick ; Roda, Andrés M. ; Monopolis, Christopher
• Corporate Creators:
  Rutgers University. Center for Advanced Infrastructure & Transportation
• Corporate Contributors:
  United States. Dept. of Transportation. Research and Innovative Technology Administration ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Bridge engineering
  • Mass concrete
  • State of the art
  • Cracking of concrete pavements
  • Temperature gradients
  • Concrete curing
  • Literature reviews
  • Thermal degradation
  • Mix design
• Publication/ Report Number:
  CAIT-UTC-006
• Resource Type:
  Tech Report
• Geographical Coverage:
  New Jersey
• Corporate Publisher:
  Rutgers University. Center for Advanced Infrastructure & Transportation
• Abstract:
  The mission of Rutgers University’s Center for Advanced Infrastructure and Transportation (CAIT) Bridge Resource Program ; (BRP) is to provide bridge engineering support to the New Jersey Department of Transportation (NJDOT)’s Bridge ; Engineering and Infrastructure Management Unit. The program is a partnership between federal and state transportation ; agencies and Rutgers University, which provides technical and educational services to address infrastructure needs in New ; Jersey. CAIT supports the NJDOT by providing staff and resources to address the most pressing bridge engineering and ; training challenges in New Jersey (through advanced materials development, design enhancements, construction ; improvements, evaluation, monitoring, data mining, management enhancement and support, and bridge research). ; The purpose of this grant is to supplement the Bridge Resource Program through the on-call investigation of mass concrete ; construction practices, which resulted in a report to NJDOT on state-of-the-art practices in mass concrete construction. The ; findings in the report were used to compare with the Thermal Control Plan for the Route 7 Wittpenn Bridge Pier 1W cap as ; well as the current mass concrete specifications included in the NJDOT 2007 Standard Specifications. The review focused on ; material composition, with description of each component’s contribution to heat of hydration. The team observed that the ; literature focused on two areas of concern, maximum temperature reached during curing and thermal differentials between the ; core and surface of the mass concrete element. The literature has extensively documented the urgency of maintaining the ; maximum curing temperature below 160°F. The adverse effects associated with exceeding the maximum temperature ; threshold are severe, but not visible for months or years after construction. This threshold should never be exceeded. The ; literature also documents damages resulting from exceeding temperature differential thresholds, which are more immediate ; and can be identified during construction. The thermal-induced cracking that results may be repaired through industry ; accepted means, from seals, coatings for hairline cracking, to more comprehensive repairs. During early stages of curing, the ; concrete has not developed sufficient strength to resist excessive thermal gradients. Thus, form insulation and other methods ; to protect the concrete surface from dissipating heat greatly or reach excessively high peak temperatures reduces the ; likelihood of deleterious effects. The results of this literature review suggest that current research and industry agree that ; temperature thresholds are critical to mass concrete. Proper controls must be established in order to ensure well-performing ; concrete elements to be constructed
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• Format:
  PDF
• Funding:
  DTRT12-G-UTC16
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/28093/dot_28093_DS1.pdf
• File Type:
  [PDF - 873.24 KB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha256:d23acec1654eff6190bb96f2c36916310d04e9ad2c4d8ff63611ba638cbc45cf