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A platform for research: civil engineering, architecture and urbanism
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 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<2>/kg; the specific surface area of the metakaolin is 400-600 m<2>/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 work is low the addition amount of an admixture and a later shrinkage rate, and has a dry shrinkage rate lower than 0.015%.
本发明涉及特种水泥材料领域，提供了一种海工水泥及其制备方法和应用。以质量份数计，所述海工水泥包括：高铁硫铝酸盐水泥熟料50～80份；矿渣微粉10～40份；偏高岭土5～15份；石膏5～15份；所述矿渣微粉的比表面积为400～600m/kg；所述偏高岭土的比表面积为400～600m/kg；制备高铁硫铝酸盐水泥熟料的原料包括脱碱赤泥、粉煤灰、石灰石、铝矾土和磷石膏。实施例结果表明，本发明提供的海工水泥3d抗压强度高于36.6MPa，28d抗压强度高于55.7MPa；抗硫酸盐浸蚀系数高于1.25；而且本发明提供的海工水泥混合材添加少，后期收缩率较低，干缩率低于0.015％。
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 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<2>/kg; the specific surface area of the metakaolin is 400-600 m<2>/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 work is low the addition amount of an admixture and a later shrinkage rate, and has a dry shrinkage rate lower than 0.015%.
本发明涉及特种水泥材料领域，提供了一种海工水泥及其制备方法和应用。以质量份数计，所述海工水泥包括：高铁硫铝酸盐水泥熟料50～80份；矿渣微粉10～40份；偏高岭土5～15份；石膏5～15份；所述矿渣微粉的比表面积为400～600m/kg；所述偏高岭土的比表面积为400～600m/kg；制备高铁硫铝酸盐水泥熟料的原料包括脱碱赤泥、粉煤灰、石灰石、铝矾土和磷石膏。实施例结果表明，本发明提供的海工水泥3d抗压强度高于36.6MPa，28d抗压强度高于55.7MPa；抗硫酸盐浸蚀系数高于1.25；而且本发明提供的海工水泥混合材添加少，后期收缩率较低，干缩率低于0.015％。
Cement for maritime work and preparation method and application thereof
一种海工水泥及其制备方法和应用
ZHAO YANRONG (author) / CHEN PING (author) / ZHANG ZHONGFEI (author) / LIU RONGJIN (author) / YE QIANXIN (author) / MING YANG (author) / WEI JIAZHAN (author) / WEI JINCAN (author)
2020-05-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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