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 Concrete Curing Cracking Of Concrete Pavements Literature Reviews Mass Concrete Mix Design State Of The Art Temperature Gradients Thermal Degradation
• 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
  
  
• Format:
  PDF
• Funding:
  DTRT12-G-UTC16
• Collection(s):
  University Transportation Centers US Transportation Collection
• Main Document Checksum:
  urn:sha256:d23acec1654eff6190bb96f2c36916310d04e9ad2c4d8ff63611ba638cbc45cf
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/28093/dot_28093_DS1.pdf
• File Type:
  [PDF - 873.24 KB ]