New studies verify that silicone and hot-pour sealants can indeed last more than 20 years. © 2013 Hanley Wood, LLC. All Rights Reserved. Republication or dissemination of "Joint Sealant Life Confirmed" (Concrete Surfaces, June 2013, pages 50-52) is expressly prohibited without the written permission of Hanley Wood, LLC. Unauthorized use is prohibited. The Seal/No Seal Group is publishing "Joint Sealant Life Confirmed" under license from Hanley Wood, LLC.
Joint Sealant Life Confirmed by Larry Scofield
Technical Memorandum: Arizona SPS-2 PCC Joint Seal Performance - A March 2013 evaluation of the condition of the joints and seals of the Arizona Special Pavement Studies (SPS) 2 jointed
concrete pavement test site, by Lynn D. Evans, Applied Research Associates, Inc.
Technical Memorandum: Arizona SPS-2 PCC Joint Seal Performance
Minnesota's Experience with Low W/C Ratio Pavements - Minnesota Department of Transportation Office of Materials and Road Research.
Original presentation was at the TRB Committee on Sealants and Fillers for Joints and Cracks during the TRB meeting Tuesday, January 15th 2013.
Sealants and Fillers for Joints and Cracks Committee, AHD25, Maria Masten, PE
Petrographers Perspective of Joint Associated Distress
Petrographers Perspective of Joint Associated Distress by Gerard Moulzolf, PG
Proceedings of the 10th International Conference on Concrete Pavements, July 8-12, 2012, Quebec City, Quebec, Canada.
Transverse Joint Distress and Mid-Slab Cracking Distress in PCC Pavements, A Petrographer’s Perspective, by David Lankard
Impact of Sealed Joints on Performance of Thin Whitetopping at MnROAD (Originally Presented at Transportation Research Board 91st Annual Meeting, January 25th, 2012)
Concrete Pavement Joint and Crack Sealing (Originally Presented at World of Concrete, January 2012)
Market Trends, Current Research and Best Practices
Seal/No Seal Group's quarterly newsletter (September 2011)
In 2009, the Seal/No Seal Group accomplished the following, using its limited funding, with the assistance of many dedicated industry volunteers:
- 58 of the 93 original FHWA Test Sections were re-evaluated in 2009, extending the initial performance period approximately 40% over the original FHWA “Effectiveness of Sealing Transverse Contraction Joints in Concrete Pavements” Study
- Four state DOTs conducted evaluations of their test sections
- Ten new sealant test sections were constructed in 2009
- Initiated a study to determine the effect of joint sealant or lack thereof on moisture infiltration/base
erosion and its potential environmental impact; developing an infiltration test to qualify the joint seal
condition - Tests occurring at the Riverside Campus of Texas A&M University, in conjunction with the Texas
The Seal/No Seal Group recommends methods for determining sealant effectiveness. The following is a suggested program for any potential agency, municipality, or company to use if they believe the seal/no seal issue needs to be looked at in their area.
Current FHWA sealant test locations throughout the United States.