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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Hauptverfasser: CHEN PING, WEI JIAZHAN, ZHAO YANRONG, ZHANG ZHONGFEI, LIU RONGJIN, YE QIANXIN, MING YANG, WEI JINCAN
Format: Patent
Sprache:chi ; eng
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Beschreibung
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