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A platform for research: civil engineering, architecture and urbanism
Immersed tube cement and concrete
The invention relates to immersed tube cement and concrete, the immersed tube cement comprises the following components in percentage by weight: 81% to 83% of clinker, 6% to 7% of gypsum, 4% to 6% oflimestone, 5% to 8% of steel slag and 0.05% of grinding aid, the content of SO3 in the immersed tube cement is 2.60% to 2.70%, the content of alkali R2O is less than or equal to 0.55%, and the specific surface area is 340 to 360 m<2>/kg; the concrete is prepared from the immersed tube cement. The immersed tube cement has the characteristics of high strength and low hydration heat and shrinkage rate, the strength and surplus value of the concrete prepared from the immersed tube cement can reach the C50 grade, the 28-day adiabatic temperature rise is less than or equal to 42 DEG C, and the shrinkage and thermal stress of the concrete are small.
本发明涉及一种沉管水泥及混凝土，沉管水泥包括以下重量百分比的组份：熟料81％‑83％,石膏6％‑7％,石灰石4％‑6％,钢渣5％‑8％,助磨剂0.05％,且沉管水泥中SO3含量为2.60％‑2.70％，碱含量R2O≤0.55％，比表面积340‑360m2/kg；混凝土采用上述沉管水泥制成。上述沉管水泥具有强度高、水化热和收缩率低特点，采用上述沉管水泥制成的混凝土的强度及其富余值能达到C50等级，28天绝热温升≤42℃，混凝土收缩和热应力小。
Immersed tube cement and concrete
The invention relates to immersed tube cement and concrete, the immersed tube cement comprises the following components in percentage by weight: 81% to 83% of clinker, 6% to 7% of gypsum, 4% to 6% oflimestone, 5% to 8% of steel slag and 0.05% of grinding aid, the content of SO3 in the immersed tube cement is 2.60% to 2.70%, the content of alkali R2O is less than or equal to 0.55%, and the specific surface area is 340 to 360 m<2>/kg; the concrete is prepared from the immersed tube cement. The immersed tube cement has the characteristics of high strength and low hydration heat and shrinkage rate, the strength and surplus value of the concrete prepared from the immersed tube cement can reach the C50 grade, the 28-day adiabatic temperature rise is less than or equal to 42 DEG C, and the shrinkage and thermal stress of the concrete are small.
本发明涉及一种沉管水泥及混凝土，沉管水泥包括以下重量百分比的组份：熟料81％‑83％,石膏6％‑7％,石灰石4％‑6％,钢渣5％‑8％,助磨剂0.05％,且沉管水泥中SO3含量为2.60％‑2.70％，碱含量R2O≤0.55％，比表面积340‑360m2/kg；混凝土采用上述沉管水泥制成。上述沉管水泥具有强度高、水化热和收缩率低特点，采用上述沉管水泥制成的混凝土的强度及其富余值能达到C50等级，28天绝热温升≤42℃，混凝土收缩和热应力小。
Immersed tube cement and concrete
一种沉管水泥及混凝土
QIN DEHUI (author) / WU XIAOCHENG (author) / YU MINGJIANG (author) / ZHENG ZHILONG (author) / XIANG CONGYANG (author) / CHEN JUN (author) / ZHENG MAOSHENG (author) / MA ZHENGHAI (author) / HUANG HENG (author)
2021-02-05
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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