| abstract |
A process is proposed for preparing a composite material that envisages the elimination of wetting, antibubble and thixotropic additives, while contemporarily providing the opportunity to increase the amount of inert filler in the finished product; according to this process a composition is polymerised comprising a resin, from 43 wt% to 75 wt% of particles of broken or alluvial quartz, which have a size from 0.1 mm to 2 mm, and from 3.25 wt% to 42 wt% of spheroidal particles, which have a spheroidal shape and a size smaller than 0.3 mm and are of glass. |