Maturity Brings Growth

After an uncertain start, geosynthetics have become standard materials for strengthening soils and extending pavement life. This article provides a brief overview of geosynthetic materials for construction. Although many of the early products were simple materials adapted from other uses, the market has become more sophisticated. Specialized companies have adapted the basic geosynthetic products for specific applications. One such product, the polymer geogrid was developed 25 years ago and is now used to reinforce poor ground. However, the most extensive use of geosynthetics is in protecting surfaces against reflective cracking. A geotextile fabric interlayer, sandwiched between a hot asphalt tack coat and the surface asphalt, offers increased resistance to cracking and provides a barrier which prevents water from penetrating the subgrade. Although geofabric interlays are widely used, quality control is important. If improperly installed, water trapped by the interlay can cause the top asphalt to become saturated.

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  • English

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  • Accession Number: 01001530
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 1 2005 11:57PM