The Adhesive Strength Test (AST): A Newly Developed Test for Measuring Adhesive Strength of Sealant between Joints of Concrete Pavement

A new Adhesive Strength Test (AST) was developed to determine the adhesive strength of joint sealant. A series of sealant thicknesses, displacement rates, and curing times were tested to determine proper AST testing parameters using self-leveling (SL) and non-self-leveling (NS) silicone sealants. A series of tests were conducted under varying moisture conditions. Results appeared to indicate that moisture may reduce adhesive strength. Drying-time tests were conducted to determine the approximate appropriate “wait-time” between joint washing and sealant installation for 3.2 mm (1/8 in.) and 9.5mm (3/8 in.) joints. A series of tests were also conducted on artificially aged sealants, which appeared to indicate that oven-aging reduces adhesive strength for SL sealant. NS sealant, on the other hand, appeared to be largely unaffected by oven-aging. Hot-water aging and freeze-thaw aging appeared to reduced adhesive strengths for both sealant recipes.

• Record URL:
  https://doi.org/10.1061/(ASCE)MT.1943-5533.0001020
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08991561
• Supplemental Notes:
  • Copyright © 2014 American Society of Civil Engineers.
• Authors:
  • Li, Qiang
  • Crowley, Raphael W
  • Bloomquist, David
  • Roque, Reynaldo
• Publication Date: 2014-12

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Serial:
  • Journal of Materials in Civil Engineering
  • Volume: 26
  • Issue Number: 12
  • Publisher: American Society of Civil Engineers
  • ISSN: 0899-1561
  • EISSN: 1943-5533
  • Serial URL: http://ascelibrary.org/journal/jmcee7

Subject/Index Terms

• TRT Terms: Adhesive strength; Concrete pavements; Freeze thaw durability; Joints; Moisture content; Sealing compounds; Silicones
• Subject Areas: Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 01504208
• Record Type: Publication
• Files: TRIS, ASCE
• Created Date: Jan 24 2014 2:29PM