Drying Behavior of a Quadruple-Sized Belitic Calcium Sulfoaluminate Airfield Concrete Slab

There would be significant benefits in construction, maintenance, and service life of airfield pavement if concrete slabs were constructed overnight and in sizes of 40 ft or more, while being capable of handling wide-body aircraft. The authors investigated using belitic calcium sulfoaluminate (BCSA) cement concrete instead of Portland cement concrete for this purpose. Seattle Tacoma International Airport (SEA) has a 25-year successful history of using BCSA for rapid airfield construction. A test slab of 11.3 m × 12.2 m × 0.5 m (37.5 ft × 40 ft × 18 in.) thick was placed at SEA on November 1, 2019. This report describes the placement, instrumentation, and an analysis of slab behavior in terms of shrinkage and curling, as measured using embedded strain gauges. Preliminary data show exceptionally low strains even for such a large slab. This unusual behavior is probably due to the unique chemistry of BCSA, which involves early strength gain caused by water-retaining ettringite, followed by the minimal shrinkage associated with belite content. Analysis of the data collected over a year shows that this unique chemistry would support improving construction protocols and slab design allowing overnight replacement of four contiguous, regular-sized Portland cement concrete slabs with a single BCSA slab on an active taxiway.

• Record URL:
  https://doi.org/10.1061/9780784483527.005
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784483527
• Supplemental Notes:
  • © 2021 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • McNerney, Michael T
  • Kim, John
  • Paniagua, Fabian
  • Paniagua, Julio
  • Chung, Danny
  • Morgan, Marc
  • Deo, Omkar
  • Bescher, Eric P
• Conference:
  • International Airfield and Highway Pavements Conference 2021
  • Date: 2021-6-8 to 2021-6-10
• Publication Date: 2021

Language

• English

Media Info

• Pagination: pp 54 - 65
• Monograph Title: Airfield and Highway Pavements 2021: Airfield Pavement Technology

Subject/Index Terms

• TRT Terms: Airport runways; Calcium; Cement; Concrete slab track; Curling; Pavement performance; Service life; Shrinkage; Strain gages; Taxiways
• Identifier Terms: Seattle-Tacoma International Airport
• Subject Areas: Aviation; Construction; Highways; Maintenance and Preservation; Pavements;

Filing Info

• Accession Number: 01777515
• Record Type: Publication
• ISBN: 9780784483527
• Files: TRIS, ASCE
• Created Date: Jul 23 2021 3:26PM