| 摘要 |
An economical and easy-to-install method for repairing cracks, including structural cracks, in recreational surfaces is described. Cracks are cleaned and completely filled with a mixture containing a high strength acrylic polymer binder mixed with sand and cement to form a crack patch of harder consistency than the surrounding asphalt. The repaired crack is then covered with a liquid which dries to a non-adhering surface which in turn is covered over with a fabric capable of stretching and then returning to its own original shape. The fabric is covered with an acrylic adhesive, which when dry secures the fabric at its peripheral edges (which extend beyond the non-adhering surface) to the asphalt playing surface. In this manner, expansion and contraction of the asphalt surrounding the acrylic based crack patch is effectively isolated from the playing surface, preventing reflective cracking in the playing surface for extended periods of time.
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