A SPORTS FIELD, IN PARTICULAR A TENNIS COURT, A METHOD OF CONSTRUCTING A TENNIS COURT AND TOP LAYER COMPOSITION FOR A COURT

摘要

The present invention relates to top layer composition for a playing court, in particular an outside tennis court, a method for constructing a tennis court and a sports field, in particular a tennis court, with a surface layer made of the top layer composition.;Soft courts have many disadvantages as e.g. high construction and maintenance costs, the need for frequent rolling, smoothing and replenishing of the surface materials for keeping the surface in a playable condition and so on.;Many of these problems can be alleviated considerably by sprinkling the surface with water. However, during periods of winds or play, sprinkling is impractical.;It is therefore the purpose of the invention to provide a playing court and a surface for the playing court that reduces the aforementioned disadvantages.;Such purposes are accomplished by a top layer composition for a playing court, in particular an outside tennis court, the top layer composition comprising a mixture of crushed brick and/or quartz sand and/or volcanic ash and a microporous zeolite mineral, wherein the microporous zeolite mineral is present in the amount of 5 % to 70 % of the total mass of the top layer composition, wherein the grain size of the crushed brick and/or quartz sand and/or volcanic ash is smaller than 3.15 mm, and wherein the grain size of the microporous zeolite mineral is between 0.03 mm and 2.2 mm.