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Improved Joint Sealant Materials for Concrete Pavements: I-90, Snoqualmie Pass: Post Construction Report, FHWA Experimental Project No. 8

Description: Three joint sealant materials were installed in a special test section of a Portland cement concrete pavement rehabilitation project located on I-90 near Hyak, Washington. the three materials: (1) Dow Corning 888 Silicon; (2) Crafco RoadSaver 231; and (3) Crafco RoadSaver 221 will be monitored for a period of three years to determine their service life and cost-effectiveness. 

Initial inspections indicate very good performance for all three materials although problems with one area of the silicon sealant test section required a modification of the standard installation procedures to produce a satisfactory final product.


  • Date Published: April, 1987
  • Publication Number: WA-RD 110.1
  • Last Modified: August 25, 2007
  • Author: Keith W. Anderson.
  • Originator: Washington (State). Dept. of Transportation.
  • # of Pages: 24 p., 438 KB (PDF)
  • Subject: Concrete pavements, Cost, Joint sealers, Performance, Portland cement concrete, Rehabilitation (Maintenance), Sealing compounds, Service life, Silicon, Test sections.
  • Keywords: Joints, sealants, concrete pavement, silicon, I-90, Snoqualmie Pass, Hyak (Wash.)
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This abstract was last modified April 29, 2008