COVERING PRODUCTION METHOD Russian patent published in 2007 - IPC E01C5/18 E01C13/00 

FIELD: construction, particularly coverings for sport and playing grounds, pavements, all-purpose mats and so on with the use of ecologically-friendly materials based on rubber and tire scrap, as well as artificial rubber.

SUBSTANCE: method involves preparing filler, namely rubber crumb, and binding material, namely polymeric mass; mixing thereof in mixer; pouring the obtained mix on base. The filler has 1.0-70.0 particle dimensions. Filler/binding material ratio is from 10:0.5 to 10:10. Filler and binding material are mixed at temperature exceeding 2°C in screw mixer having reversible drive up to homogenous mass obtaining. Binding material is added after filler introduction during mixing operation. Ready mix is unloaded by means of screw mixer. Before mix pouring base is cleaned of dirt and dust and covered with primer. The mix is poured after at least partial primer drying to reach mix layer thickness more than 2 mm on base. After that the mix is covered with film to prevent mix adhering to working tools. Then the covering is smoothed, compacted and cured for total hardening thereof.

EFFECT: increased productivity, decreased production costs, simplified technology and extended range of technical capabilities.

7 cl, 3 dwg, 3 ex