Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-shrinkage ultra-high performance concrete and preparation method thereof
The invention is suitable for the field of building materials, and discloses low-shrinkage ultra-high performance concrete and a preparation method thereof.The low-shrinkage ultra-high performance concrete is prepared from, by weight, 400-600 parts of cement, 100-200 parts of micro-nano admixture, 100-200 parts of mineral admixture, 200-300 parts of lithium slag powder, 800-1200 parts of aggregate, 120-240 parts of steel fiber, 16-24 parts of admixture and 110-180 parts of water; wherein before mixing and stirring, water accounting for 20%-30% of the mass of the lithium slag powder is added into the lithium slag powder for pre-wetting. The low-shrinkage ultra-high performance concrete is high in compressive strength and small in shrinkage value, a large amount of industrial solid waste lithium slag can be consumed, and the low-shrinkage ultra-high performance concrete has remarkable ecological and economic benefits; and different from the traditional method of absorbing water in advance for aggregate and water-absorbent resin, the method of absorbing water in advance for the lithium slag powder as a water storage source does not reduce the strength of the ultra-high performance concrete, and the internal curing effect is better.
本申请适用于建筑材料领域，公开了一种低收缩超高性能混凝土及其制备方法，低收缩超高性能混凝土包括以下重量份的原料：水泥400‑600份、微纳米掺合料100‑200份、矿物掺合料100‑200份、锂渣粉200‑300份、骨料800‑1200份、钢纤维120‑240份、外加剂16‑24份、以及水110‑180份；其中，在混合搅拌前，对所述锂渣粉加入其自身质量20％‑30％的水进行预湿。本申请的低收缩超高性能混凝土抗压强度高、收缩值小，并且可以消耗大量的工业固废锂渣，具有显著的生态经济效益；且与传统的对骨料和吸水树脂预先吸水不同，对锂渣粉预先吸水作为储水源并不会降低超高性能混凝土的强度，且内养护效果更佳。
Low-shrinkage ultra-high performance concrete and preparation method thereof
The invention is suitable for the field of building materials, and discloses low-shrinkage ultra-high performance concrete and a preparation method thereof.The low-shrinkage ultra-high performance concrete is prepared from, by weight, 400-600 parts of cement, 100-200 parts of micro-nano admixture, 100-200 parts of mineral admixture, 200-300 parts of lithium slag powder, 800-1200 parts of aggregate, 120-240 parts of steel fiber, 16-24 parts of admixture and 110-180 parts of water; wherein before mixing and stirring, water accounting for 20%-30% of the mass of the lithium slag powder is added into the lithium slag powder for pre-wetting. The low-shrinkage ultra-high performance concrete is high in compressive strength and small in shrinkage value, a large amount of industrial solid waste lithium slag can be consumed, and the low-shrinkage ultra-high performance concrete has remarkable ecological and economic benefits; and different from the traditional method of absorbing water in advance for aggregate and water-absorbent resin, the method of absorbing water in advance for the lithium slag powder as a water storage source does not reduce the strength of the ultra-high performance concrete, and the internal curing effect is better.
本申请适用于建筑材料领域，公开了一种低收缩超高性能混凝土及其制备方法，低收缩超高性能混凝土包括以下重量份的原料：水泥400‑600份、微纳米掺合料100‑200份、矿物掺合料100‑200份、锂渣粉200‑300份、骨料800‑1200份、钢纤维120‑240份、外加剂16‑24份、以及水110‑180份；其中，在混合搅拌前，对所述锂渣粉加入其自身质量20％‑30％的水进行预湿。本申请的低收缩超高性能混凝土抗压强度高、收缩值小，并且可以消耗大量的工业固废锂渣，具有显著的生态经济效益；且与传统的对骨料和吸水树脂预先吸水不同，对锂渣粉预先吸水作为储水源并不会降低超高性能混凝土的强度，且内养护效果更佳。
Low-shrinkage ultra-high performance concrete and preparation method thereof
一种低收缩超高性能混凝土及其制备方法
CAO WENBIN (Autor:in) / LIU GENSHENG (Autor:in) / JI HUAN (Autor:in) / PENG JINGFENG (Autor:in) / TU CHUANHONG (Autor:in) / CHAI TIANHONG (Autor:in) / XI HAIPING (Autor:in) / HUANG GUOPING (Autor:in) / JIANG JIANSONG (Autor:in) / HUANG WENCONG (Autor:in)
04.04.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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