Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-shrinkage high-cohesiveness ultra-high performance concrete and preparation method thereof
The concrete is prepared from the following raw materials in parts by weight: 680 to 775 parts of cement, 140 to 200 parts of fly ash, 160 to 220 parts of silica fume, 45 to 80 parts of superfine zeolite powder, 60 to 90 parts of a composite expanding agent, 1.6 to 2.1 parts of graphene oxide, 940 to 1120 parts of high-titanium heavy slag sand, 25.3 to 31.6 parts of a water reducing agent, 0.025 to 0.063 part of a de-foaming agent, 160 to 200 parts of steel fiber and 185 to 202 parts of water. The low-shrinkage high-cohesiveness ultra-high performance concrete has the characteristics of low shrinkage, high cohesiveness and the like, can effectively solve the problems of bridge deck expansion joint concrete crack deformation and cracking, concrete cracking, poor durability and the like, ensures the use performance of the bridge deck expansion joint concrete in multiple layers, and effectively prolongs the service life of bridge engineering.
本发明公开了一种低收缩高粘结性超高性能混凝土，包括以下重量份的原料：水泥680～775份、粉煤灰140～200份、硅灰160～220份、超细沸石粉45～80份、复合膨胀剂60‑90份，氧化石墨烯1.6～2.1份、高钛重矿渣砂940‑1120份、减水剂25.3～31.6份、消泡剂0.025～0.063份、钢纤维160‑200份、水185～202份。发明所述低收缩高粘结性超高性能混凝土，具有低收缩、高粘结性等特性，可有效解决桥面伸缩缝混凝土缝隙变形开裂、混凝土龟裂、耐久性差等问题，多层面保证桥面伸缩缝混凝土的使用性能，有效延长桥梁工程服役寿命。
Low-shrinkage high-cohesiveness ultra-high performance concrete and preparation method thereof
The concrete is prepared from the following raw materials in parts by weight: 680 to 775 parts of cement, 140 to 200 parts of fly ash, 160 to 220 parts of silica fume, 45 to 80 parts of superfine zeolite powder, 60 to 90 parts of a composite expanding agent, 1.6 to 2.1 parts of graphene oxide, 940 to 1120 parts of high-titanium heavy slag sand, 25.3 to 31.6 parts of a water reducing agent, 0.025 to 0.063 part of a de-foaming agent, 160 to 200 parts of steel fiber and 185 to 202 parts of water. The low-shrinkage high-cohesiveness ultra-high performance concrete has the characteristics of low shrinkage, high cohesiveness and the like, can effectively solve the problems of bridge deck expansion joint concrete crack deformation and cracking, concrete cracking, poor durability and the like, ensures the use performance of the bridge deck expansion joint concrete in multiple layers, and effectively prolongs the service life of bridge engineering.
本发明公开了一种低收缩高粘结性超高性能混凝土，包括以下重量份的原料：水泥680～775份、粉煤灰140～200份、硅灰160～220份、超细沸石粉45～80份、复合膨胀剂60‑90份，氧化石墨烯1.6～2.1份、高钛重矿渣砂940‑1120份、减水剂25.3～31.6份、消泡剂0.025～0.063份、钢纤维160‑200份、水185～202份。发明所述低收缩高粘结性超高性能混凝土，具有低收缩、高粘结性等特性，可有效解决桥面伸缩缝混凝土缝隙变形开裂、混凝土龟裂、耐久性差等问题，多层面保证桥面伸缩缝混凝土的使用性能，有效延长桥梁工程服役寿命。
Low-shrinkage high-cohesiveness ultra-high performance concrete and preparation method thereof
一种低收缩高粘结性超高性能混凝土及其制备方法
WANG LING (Autor:in) / HUANG YAZHONG (Autor:in) / GAO KUI (Autor:in) / CAI TONGXING (Autor:in) / WANG QIAN (Autor:in) / LIANG GUANTING (Autor:in) / LUO KAI (Autor:in) / ZHANG HAO (Autor:in) / SHI ZHAN (Autor:in)
27.09.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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