1.1 This specification covers joint and crack seal bands of the cold applied type intended for use in sealing joints and cracks in Portland cement concrete and asphaltic concrete pavements. 1.2 This specification does not purport to cover the properties required of seal bands for use in areas of Portland cement concrete or asphaltic pavement subject to jet fuel or other fuel spillage such as vehicle and/or aircraft refuel and maintenance areas. 1.3 Units--The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Keywordscold-applied; seal band
Crack seal band is a preformed strip material for pavements for rapid, cost-effective, and environmentally friendly crack repairing and it is easy to use. Unlike the conventional hot-applied asphalt sealant, crack seal band does not require cutting of pavement or cleaning for most existing pavements. The seal band is directly applied on the cracks, and the pavement is immediately open to traffic. As far as I know, crack seal band is not a new material. Some seal band trial roads were done in Canada around the year 2000. However, most of the seal bands were pulled out by vehicles. This seal band technology then was given up in Canada. In the United States, QwikSeal produced by Crafco Inc. is also one type of seal band. In China, the initial seal bands were cut into strips from waterproofing. These seal bands showed poor field performance. In recent years, the application of seal band has been very common in China. The qualities of seal band have significantly improved. It shows to be more cost-effective than hot-poured sealant. Last year, more than 3 million meters of seal band were used, which were produced by dozens of manufacturers. The application methods of crack seal band include hot-applied crack seal bands and cold-applied crack seal bands. Most crack seal bands are cold-applied self-adhesion band without the need for heating. There are two categories regarding the materials in the seal band: fabric bands and fabric-free seal bands. I have been responsible for developing Chinas crack seal band specification since 2012. This specification (JT/T 969) was released by the Ministry of Transport of China in 2015. I also have published two papers about crack seal band in the Journal of Testing and Evaluation and Journal of Materials in Civil Engineering. I have talked to a few experts in TRB Annual Meetings. As expected, some people are sceptical about crack seal band; however, other people show great interest in it, and they are looking into the possibility of using crack seal band in the United States. They said the best way to approach this is to have them try it out. I, therefore, have a suggestion of developing Standard Test Methods and Specification for Crack Seal Band, which will promote the application of this material in the United States, Canada, and all around the world.
The title and scope are in draft form and are under development within this ASTM Committee.Back to Top
Draft Under Development