COMPLEX AGENT FOR CEMENT, CONCRETE, MORTAR, DRY MIX, AND PLUGGING MATERIAL Russian patent published in 2001 - IPC

FIELD: construction engineering. SUBSTANCE: complex agent is used for manufacturing concrete and reinforced concrete structures including underground ones and for cementing oil-wells. Complex agent has portland cement clinker or clinker cement, powdered super-plasticizer C-3, and water-retaining reagent Plastil based on refractory clay modified by technical lignosulphonates jointly crushed to specific surface area of 4500-5000 cm²/g; ratio of ingredients is as follows, mas. %: portland cement clinker or clinker cement, 30-40; powdered super-plasticizer C- 3, 25-35; water-retaining reagent Plastil based on refractory clay modified by technical lignosulphonates, 25-45. EFFECT: enhanced strength of formed components. 1 ex, 2 tbl