Cement for maritime work and preparation method and application thereof
The invention relates to the field of special cement materials, and provides cement for maritime work and a preparation method and application thereof. The cement for maritime work comprises the following components in parts by mass: 50-80 parts of high-iron sulphoaluminate cement clinker, 10 to 40...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to the field of special cement materials, and provides cement for maritime work and a preparation method and application thereof. The cement for maritime work comprises the following components in parts by mass: 50-80 parts of high-iron sulphoaluminate cement clinker, 10 to 40 parts of superfine slag powder, 5 to 15 parts of metakaolin and 5 to 15 parts of gypsum, wherein thespecific surface area of the superfine slag powder is 400-600 m /kg; the specific surface area of the metakaolin is 400-600 m /kg; and raw materials for preparing the high-iron sulphoaluminate cement clinker comprise dealkalized red mud, fly ash, limestone, bauxite and phosphogypsum. The result of an embodiment shows that the 3-d compressive strength of the cement for maritime work provided by the invention is higher than 36.6 MPa, and the 28-d compressive strength of the cement is higher than 55.7 MPa; the sulfate etching resistance coefficient of the cement is higher than 1.25; and moreover, the cement for maritime |
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