FIELD: construction.
SUBSTANCE: present invention pertains to composite material getting as a result of mixing with water of 100 parts wt of binding agent, from 250 to 800 parts wt of steel based beads , granulometric composition whereof makes 120-3000 μm, from 10 to 15 parts wt of unconsolidated colloidal silica and super plasticising admix presenting an efficient water content reducing agent. Ratio of water to the hydraulic binder ranges from 0.16 to 0.25. Proposed composition material has a high rate of wearing capacity (I) measured according to the C.N.R. protocol and ranging from 0.15 to 1.0; D10 beads particles size, at least, eight times as high as the size of the particles D90 of the hydraulic binding agent.
EFFECT: enhanced resistance to abrasion.
23 cl, 18 tbl, 5 dwg
