| 摘要 |
FIELD: construction.SUBSTANCE: invention relates to production of binding materials and may be used for production of construction of cement. Active mineral additive for cement contains low-calcium ash-slag wastes thermal power plant with aluminium oxide content of 17.75 % and gypsum-containing component, such as a by-product of production of phosphoric acid phosphogypsum, with the following component ratio, wt. %: ash-slag wastes - 66.7; phosphogypsum - 33.3.EFFECT: wider range of widely available active mineral additives for cement production, wider raw material base of effective, widely available active mineral additives for cement production, higher quality and reducing the cost of production of cement, utilization of heavy-tonnage industrial wastes and development method of preparing widely available active mineral additive.2 cl, 6 tbl |
