Concrete Construction’s How-To Zone in the Silver Lot was a buzz yesterday as the Seal/No Seal Group presented to a full crowd. The group educated the gathering on Concrete Pavement Joint and Crack Sealing: Market Trends, Current Research, and Best Practices.

To approach this topic, speakers Scott Eilken of Quality Saw and Seal, Charley Grady of Crafco, and John Roberts of the International Grooving and Grinding Association (Booth C4237) used the new format to discuss the state of the sealing industry, outline several research projects underway in support of sealing effectiveness, and present a discussion on best practices related to sealing joints and cracks in concrete pavement.

“The compelling issue is that as cost pressures continue, there is increased interest in eliminating transverse joint sealants as a means of lowering the cost of concrete pavements,” says Eilken. “However, there is a lack of data in the industry to help guide owners about sealant effectiveness and the long-term impact of using or not using such sealants.”

The clinic discussed many issues with sealants: conflicting results regarding sealant effectiveness and performance; the apparent cause of joint associated distress issues becoming more prevalent; proper construction and inspection; development of improved test procedures; defining when to reseal; and the current focus on initial construction costs and not long-term value of sealant.

Additionally, current Seal/No Seal Group research with the Texas Transportation Institute on the “Effect of Joint Sealant Condition on Moisture Infiltration and Erosion Potential,” and with Wiss, Janney, Elstner Associates Inc. on “Joint Reservoir Moisture and Contamination Test Procedure Development” was described.

For more information on the Seal/No Seal Group or how you can get involved, contact co-chairs Scott Eilken at 708-728-1895 or Charley Grady at 602-524-1334, or email info@sealnoseal.orguxrqqcrsxeybwdzwucufxsrfqxwttece.