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A platform for research: civil engineering, architecture and urbanism
Additive for ultra-large-volume concrete
The invention belongs to the field of concrete, and particularly relates to an additive for ultra-large-volume concrete. According to the invention, by mass fraction, 2-5% of a water reducing type polycarboxylic acid water reducing agent stock solution is introduced to reduce the water consumption of concrete; 10%-15% of a retarding type polycarboxylic acid retarder stock solution is used for prolonging the concrete setting time; 3-5% of a carbon-water type energy release regulator is used for reducing concrete slump loss; 1%-2% of an alkali metal type-biological energy supply molecule sodium polyhydroxycarboxylate is used for improving the strength of the concrete; and 0.01%-0.02% of an amino alcohol derivative is used for preventing corrosion of steel bars in the concrete. The whole body formed by all the material components can effectively prolong the setting time of the super-large-volume concrete and reduce the hydration heat of the super-large-volume concrete in unit time.
本发明属于混凝土领域，具体涉及一种用于超大体积混凝土的外加剂。本发明，按质量分数计算，引入减水型聚羧酸减水剂原液2％～5％用于减少混凝土用水量；缓凝型聚羧酸缓凝剂原液10％～15％用于延长混凝土凝结时间；碳水型能量释放调节剂3％～5％用于减小混凝土坍落度损失；碱金属型‑生物供能分子多羟基羧酸钠1％～2％用于提高混凝土强度；氨基醇衍生物0.01％～0.02％用于防止混凝土内部钢筋锈蚀。各个材料组分形成的整体能够有效延长超大体积混凝土的凝结时间，降低超大混凝土单位时间水化热量。
Additive for ultra-large-volume concrete
The invention belongs to the field of concrete, and particularly relates to an additive for ultra-large-volume concrete. According to the invention, by mass fraction, 2-5% of a water reducing type polycarboxylic acid water reducing agent stock solution is introduced to reduce the water consumption of concrete; 10%-15% of a retarding type polycarboxylic acid retarder stock solution is used for prolonging the concrete setting time; 3-5% of a carbon-water type energy release regulator is used for reducing concrete slump loss; 1%-2% of an alkali metal type-biological energy supply molecule sodium polyhydroxycarboxylate is used for improving the strength of the concrete; and 0.01%-0.02% of an amino alcohol derivative is used for preventing corrosion of steel bars in the concrete. The whole body formed by all the material components can effectively prolong the setting time of the super-large-volume concrete and reduce the hydration heat of the super-large-volume concrete in unit time.
本发明属于混凝土领域，具体涉及一种用于超大体积混凝土的外加剂。本发明，按质量分数计算，引入减水型聚羧酸减水剂原液2％～5％用于减少混凝土用水量；缓凝型聚羧酸缓凝剂原液10％～15％用于延长混凝土凝结时间；碳水型能量释放调节剂3％～5％用于减小混凝土坍落度损失；碱金属型‑生物供能分子多羟基羧酸钠1％～2％用于提高混凝土强度；氨基醇衍生物0.01％～0.02％用于防止混凝土内部钢筋锈蚀。各个材料组分形成的整体能够有效延长超大体积混凝土的凝结时间，降低超大混凝土单位时间水化热量。
Additive for ultra-large-volume concrete
用于超大体积混凝土的外加剂
WEN JUN (author) / TIAN CHENG (author) / YAN JUNYANG (author) / TU XIAOZHU (author)
2022-01-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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