摘要: |
Microsurfacing is used as a surface seal to establish skid resistance on pavements, to fill ruts in asphalt concrete pavements and chain-wear depressions on portland cement concrete pavements, to reduce weathering and raveling on asphalt concrete pavements, and to surface bridge decks. Usage guidelines for applying microsurfacing on asphalt concrete pavements were developed while working on a project for the Texas Department of Transportation (TxDOT). These guidelines are based on information collected from published literature, personnel experienced in using microsurfacing, TxDOT personnel, industry personnel, and the project staff's experience developed during the project. Special attention was directed at identifying those pavement types, conditions, and problems that normally could be addressed with microsurfacing. Provided is the following information: a short description of microsurfacing, its use as a surface treatment, its use as a rut filler, the types of pavement problems for which the treatment would be appropriate, the requirements of the pavement for treatment with microsurfacing, recommended analysis procedures to decide if microsurfacing is appropriate for a selected section of pavement, layer thicknesses, and the time of opening to traffic. |