BINDING AGENT Russian patent published in 1998 - IPC

FIELD: compounds of binding agents; may be used in preparation of masonry mortars, pasters and staccoes, and in manufacture of concrete and reinforced concrete articles. SUBSTANCE: binding agent contains, mas.%: lime, 25-35; plaster of Paris, 4-25; and zeolite-containing rock subjected to heat treatment at 150-180 C for 1.5-2 h. Binding agent ensures beginning of settling in 50-70 min and end setting in 150-180 min; water resistance, 0.94-0.95; strength in 28 days, 24-37 MPa; strength after steam treatment, 18-24 MPa. EFFECT: higher efficiency. 2 tbl