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Special grinding aid for maritime work cement and preparation method thereof
The invention discloses a special grinding aid for maritime work cement and a preparation method of the special grinding aid. The special grinding aid for maritime work cement is prepared from the following raw materials: 5-9% of grinding aid mother liquor, 13-18% of an industrial salt, 3-9% of a superplasticizer, 7-15% of slag powder, 3-5% of limestone powder, 3-8% of silica fume and 36-66% of fly ash; specifically, the percentages are mass percentages. By using the superplasticizer with high dispersion performance, cement particles can be highly dispersed, and in addition, through dispersionpermeation, charges carried by the cement particles are neutralized, so that the agglomeration phenomenon is reduced. Slag powder, limestone powder and fly ash are used, so that hydration heat of marine cement can be remarkably reduced, adiabatic temperature rise in concrete is reduced, temperature stress caused by internal and external temperature difference is reduced, generation of concrete temperature cracks is prevented, the overall integrity of a concrete structure is guaranteed, therefore, the corrosion resistance and the durability of the concrete structure are effectively improved.
本发明公开了一种海工水泥专用助磨剂及其制备方法，该海工水泥专用助磨剂由以下原料制备得到：助磨剂母液5～9%，工业盐13~18%，高效减水剂3~9%，矿渣粉7～15%，石灰石粉3~5%，硅灰3~8%，粉煤灰36~66%，总量100%；所述百分比均为质量百分比。使用了高分散性能的高效减水剂首先可以将水泥颗粒高度分散，另外通过分散渗透，使水泥颗粒所带的电荷被中和使其减少团聚现象。使用了矿渣粉以及石灰石粉和粉煤灰可以显著地减少海工水泥的水化热，降低混凝土内部的绝热温升从而减小了由于内外温差引起的温度应力，防止混凝土温度裂缝的产生，保证了混凝土结构整体完整性，从而有效提高混凝土构筑物的抗腐蚀性能和耐久性能。
Special grinding aid for maritime work cement and preparation method thereof
The invention discloses a special grinding aid for maritime work cement and a preparation method of the special grinding aid. The special grinding aid for maritime work cement is prepared from the following raw materials: 5-9% of grinding aid mother liquor, 13-18% of an industrial salt, 3-9% of a superplasticizer, 7-15% of slag powder, 3-5% of limestone powder, 3-8% of silica fume and 36-66% of fly ash; specifically, the percentages are mass percentages. By using the superplasticizer with high dispersion performance, cement particles can be highly dispersed, and in addition, through dispersionpermeation, charges carried by the cement particles are neutralized, so that the agglomeration phenomenon is reduced. Slag powder, limestone powder and fly ash are used, so that hydration heat of marine cement can be remarkably reduced, adiabatic temperature rise in concrete is reduced, temperature stress caused by internal and external temperature difference is reduced, generation of concrete temperature cracks is prevented, the overall integrity of a concrete structure is guaranteed, therefore, the corrosion resistance and the durability of the concrete structure are effectively improved.
本发明公开了一种海工水泥专用助磨剂及其制备方法，该海工水泥专用助磨剂由以下原料制备得到：助磨剂母液5～9%，工业盐13~18%，高效减水剂3~9%，矿渣粉7～15%，石灰石粉3~5%，硅灰3~8%，粉煤灰36~66%，总量100%；所述百分比均为质量百分比。使用了高分散性能的高效减水剂首先可以将水泥颗粒高度分散，另外通过分散渗透，使水泥颗粒所带的电荷被中和使其减少团聚现象。使用了矿渣粉以及石灰石粉和粉煤灰可以显著地减少海工水泥的水化热，降低混凝土内部的绝热温升从而减小了由于内外温差引起的温度应力，防止混凝土温度裂缝的产生，保证了混凝土结构整体完整性，从而有效提高混凝土构筑物的抗腐蚀性能和耐久性能。
Special grinding aid for maritime work cement and preparation method thereof
一种海工水泥专用助磨剂及其制备方法
LI XIAOJING (author) / XIE HAO (author) / LIU GUOHUA (author) / SUN BO (author)
2021-02-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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