Concrete pavement mixture design and analysis (MDA) : assessment of air void system requirements for durable concrete.

Details

• Creators:
  Ley, Tyler ; Felice, Robert ; Freeman, John Michael
• Corporate Creators:
  Iowa State University. National Concrete Pavement Technology Center
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • Concrete pavements
  • Admixtures
  • Mix design
  • Specifications
  • Frost damage
  • Air voids
  • Freeze thaw durability
  • Air entraining agents
• Publication/ Report Number:
  Part of InTrans Project 09-353
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  Iowa State University. Institute for Transportation
• NTL Classification:
  NTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and Performance ; NTL-HIGHWAY/ROAD TRANSPORTATION-Design
• Abstract:
  Concrete will suffer frost damage when saturated and subjected to freezing temperatures. Frost-durable concrete can be produced if a ; specialized surfactant, also known as an air-entraining admixture (AEA), is added during mixing to stabilize microscopic air voids. ; Small and well-dispersed air voids are critical to produce frost-resistant concrete. ; Work completed by Klieger in 1952 found the minimum volume of air required to consistently ensure frost durability in a concrete ; mixture subjected to rapid freezing and thawing cycles. He suggested that frost durability was provided if 18 percent air was created in ; the paste. This is the basis of current practice despite the tests being conducted on materials that are no longer available using tests that ; are different from those in use today. ; Based on the data presented, it was found that a minimum air content of 3.5 percent in the concrete and 11.0 percent in the paste should ; yield concrete durable in the ASTM C 666 with modern AEAs and low or no lignosulfonate water reducers (WRs). Limited data ; suggests that mixtures with a higher dosage of lignosulfonate will need about 1 percent more air in the concrete or 3 percent more air in ; the paste for the materials and procedures used. A spacing factor of 0.008 in. was still found to be necessary to provide frost durability ; for the mixtures investigated.
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• Format:
  PDF
• Funding:
  Part of DTFH61-06-H-00011 Work Plan 25
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/26336/dot_26336_DS1.pdf
• File Type:
  [PDF - 724.23 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:0dabbfa11f68efa73dd255c75fd7ba183a93c25a11c1f33813b2331f20a41e78