FIELD: chemistry.
SUBSTANCE: invention relates to construction, chemical and metallurgical industries and can be used to process metallurgical slags and man-made gypsum into hydraulic binder for general construction and road construction. Composite hydraulic slag binder is a product of combined grinding of slag of arc steel-making furnaces, slag of ladle-furnace unit, dihydrate of calcium sulphate and retarder of setting time – tartaric or citric acid, with the following ratio of components, wt.%: slag of arc steel-making furnaces 47.7-81.85; ladle-furnace unit slag 14.0-40.0; calcium sulphate dihydrate 4.0-12.0; tartaric or citric acid 0.15-0.3.
EFFECT: reduced use of natural resources and portland cement when making construction concrete and mortars, preserving the environment due to more complete involvement of slag from arc steel-making furnaces.
1 cl, 5 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| COMPOSITE WATER-RESISTANT GYPSUM BINDING AGENT | 2012 |
|
RU2505504C1 |
| METHOD OF PREPARING WATER-RESISTANT GYPSUM BINDER | 2009 |
|
RU2415093C1 |
| METHOD FOR STEELMAKING PROCESSING WASTE RECYCLING TO PRODUCE PORTLANDCEMENT CLINKER AND CAST IRON | 2016 |
|
RU2629424C1 |
| COMPOSITE BINDING MATERIAL FROM PHOSPHOGYPSUM AND METHOD FOR ITS PRODUCTION | 2023 |
|
RU2816610C1 |
| METHOD FOR CORRECTING COMPOSITION OF PORTLAND CEMENT CLINKER BASED ON HIGH-SULPHATE CRUDE MIXTURE | 2013 |
|
RU2527430C1 |
| CONTROL OF SETTING TIME OF GEOPOLYMER COMPOSITIONS CONTAINING REACTIVE ALUMINOSILICATE MATERIALS CHARACTERIZED BY HIGH CA CONTENT | 2018 |
|
RU2795134C2 |
| METHOD OF PRODUCING GYPSUM BINDER, MODIFIED COMPOSITE GYPSUM BINDER AND METHOD FOR PRODUCTION THEREOF | 2015 |
|
RU2601962C1 |
| MIXTURE OF MAKING LIGHT CONCRETE AND LIGHT CONCRETE | 2008 |
|
RU2399598C2 |
| EXPANSION ADMIXTURE BASED ON IRON-CONTAINING PULVERIZED WASTE FOR EXPANDING CEMENT | 2021 |
|
RU2767481C1 |
| COMPOSITION FOR THE MANUFACTURE OF WATERPROOF FACING GYPSUM PRODUCTS | 2022 |
|
RU2787245C1 |
