A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses self-compacting concrete for pumping, which comprises a pumping base concrete component and a mineral admixture mixed with the pumping base concrete, the mineral admixture accounts for 3-10% of the total weight, the mineral admixture comprises a mixture of oxide at least containing Si, Al, Fe, Ca and S and inorganic acid salt, and the mineral admixture also comprises an additive accounting for not more than 0.5% of the total weight. The mineral admixture is combined into different oxides or inorganic acid salts, different activities, surface effects, filling effects orvolcanic ash effects are achieved, and when the mineral admixture is mixed into the self-compacting concrete, the slump, work-ability, cohesiveness, segregation resistance and later strength of the self-compacting concrete can be improved; the concrete has better flow-ability, compactness and homogeneity, and the production requirement of a solid square pile is met; the curing speed and the strength increasing speed of the concrete are increased, the curing time of the concrete is shortened, and the effect of rapid curing in the autoclaving-free process is achieved.
本发明公开了一种泵送用自密实混凝土，包括泵送基础混凝土成分和与泵送基础混凝土混合的矿物掺合料，矿物掺合料占总重量的3‑10％，矿物掺合料包括至少含Si、Al、Fe、Ca、S的氧化物和无机酸盐的混合物，还包括占总重量不大于0.5％的外加剂。本发明通过矿物掺合料组合成不同的氧化物或无机酸盐，具有不同的活性、表面效应、填充效应或火山灰效应，当矿物掺合料掺入自密实混凝土中，可提高自密实混凝土的坍落度、和易性、粘聚性、抗离析度及后期强度，使混凝土具有更好的流动性、密实性和匀质性，满足实心方桩的生产需要；促进混凝土的固化速度和强度增长速度，减少混凝土的固化时间，达到免蒸压过程也能快速固化的效果。
The invention discloses self-compacting concrete for pumping, which comprises a pumping base concrete component and a mineral admixture mixed with the pumping base concrete, the mineral admixture accounts for 3-10% of the total weight, the mineral admixture comprises a mixture of oxide at least containing Si, Al, Fe, Ca and S and inorganic acid salt, and the mineral admixture also comprises an additive accounting for not more than 0.5% of the total weight. The mineral admixture is combined into different oxides or inorganic acid salts, different activities, surface effects, filling effects orvolcanic ash effects are achieved, and when the mineral admixture is mixed into the self-compacting concrete, the slump, work-ability, cohesiveness, segregation resistance and later strength of the self-compacting concrete can be improved; the concrete has better flow-ability, compactness and homogeneity, and the production requirement of a solid square pile is met; the curing speed and the strength increasing speed of the concrete are increased, the curing time of the concrete is shortened, and the effect of rapid curing in the autoclaving-free process is achieved.
本发明公开了一种泵送用自密实混凝土，包括泵送基础混凝土成分和与泵送基础混凝土混合的矿物掺合料，矿物掺合料占总重量的3‑10％，矿物掺合料包括至少含Si、Al、Fe、Ca、S的氧化物和无机酸盐的混合物，还包括占总重量不大于0.5％的外加剂。本发明通过矿物掺合料组合成不同的氧化物或无机酸盐，具有不同的活性、表面效应、填充效应或火山灰效应，当矿物掺合料掺入自密实混凝土中，可提高自密实混凝土的坍落度、和易性、粘聚性、抗离析度及后期强度，使混凝土具有更好的流动性、密实性和匀质性，满足实心方桩的生产需要；促进混凝土的固化速度和强度增长速度，减少混凝土的固化时间，达到免蒸压过程也能快速固化的效果。
Self-compacting concrete for pumping
一种泵送用自密实混凝土
ZHOU ZHAODI (author)
2020-12-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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