ALL-WEATHER GROUND COMPOSITION FOR EQUESTRIAN SPORT FACILITY Russian patent published in 2007 - IPC E01C13/00 

FIELD: pavings or foundations specially adapted for playgrounds or sports grounds, particularly ground for racecourses, show jumping fields, indoor and outdoor riding-house structures.

SUBSTANCE: all-weather ground composition includes quartz sand, fiber materials, elastic fillers and binding agent. The fiber materials comprise polyester polymer, namely lavsan, having fiber lengths of 1-8 mm, polymeric material layer, namely polyvinylchloride, applied thereto and cordage lavsan fiber having fiber lengths of 5-30 mm. The elastic filler is rigid synthetic polypropylene fibers of 15-40 mm lengths, grinded geotextile web used as pieces having 0.5-3.0 cm² surface areas and granular elastic filler, namely rubber crumb with 1.0-15 mm particle dimensions. The binding agent is structural surface modifier, which provides bulk density decrease, decrease of maximal density during ground compaction, absolute deformation and absolute residual deformation increase and necessary water-permeability. Above components are taken in the following amounts: quartz sand - 70-95%, polyester polymer, namely lavsan, with polyvinylchloride layer - 0.5-4%, cordage lavsan fiber - 1-5%, rigid synthetic polypropylene fiber - 0.05-0.2%, grinded geotextile web particles - 0.05-0.2%, structural surface modifier - 2-10%, remainder is rubber crumb.

EFFECT: elimination of prior-art disadvantages, reduction of residual deformation, increased recoverability and all-weather ground covering uniformity, improved usage properties in wide temperature range, decreased dust formation during ground covering usage, reduced height of ground fragment rebound and, as a result, increased safety.

3 cl, 1 tbl, 1 dwg