A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Low-shrinkage recycled fine aggregate ultra-high performance concrete and preparation method thereof
The invention discloses low-shrinkage recycled fine aggregate ultra-high performance concrete which comprises the following raw materials: cement, silica fume, superfine fly ash, ground slag powder, machine-made sand, artificial sand, aeolian sand, basalt macadam, gravel, a water reducing agent, an expanding agent, a retarder, an air entraining agent and water. The preparation method of the low-shrinkage recycled fine aggregate ultra-high performance concrete comprises the following steps: step 1, selecting raw materials; 2, raw material pretreatment; step 3, preparing premixed aggregate; step 4, mixing ingredients; and 5, storing a finished product. The concrete strength can be improved, the use cost of the raw materials can be reduced, the concrete has good ductility, the performance of the concrete can be improved, and the anti-cracking, anti-seepage and durability performance can be improved; the retarder is sugar calcium and improves the physical and mechanical properties of the concrete; the air entraining agent is triterpenoid saponin, and the service life of the concrete is prolonged. The surface tension between gas and liquid is reduced, bubbles are rapidly formed, and the air entraining effect is good.
本发明公开了一种低收缩再生细骨料超高性能混凝土，包括以下原料：水泥、硅灰、超细粉煤灰、磨细矿渣粉、机制砂、人工砂、风积砂、玄武岩碎石、砾石、减水剂、膨胀剂、缓凝剂、引气剂、水；一种低收缩再生细骨料超高性能混凝土的制备方法，包括步骤一，原材料选取；步骤二，原材料预处理；步骤三，制备预混合骨料；步骤四，配料混合；步骤五，成品储存。本发明利能够提高混凝土强度，降低原材料的使用成本，使混凝土具有良好的延展性，能够改善混凝土性能，增加抗裂、抗渗和耐久性能，缓凝剂为糖钙，提高混凝土的物理力学性能，引气剂为三萜皂甙，降低气体和液体间的表面张力快速形成气泡，具有较好的引气效果。
Low-shrinkage recycled fine aggregate ultra-high performance concrete and preparation method thereof
The invention discloses low-shrinkage recycled fine aggregate ultra-high performance concrete which comprises the following raw materials: cement, silica fume, superfine fly ash, ground slag powder, machine-made sand, artificial sand, aeolian sand, basalt macadam, gravel, a water reducing agent, an expanding agent, a retarder, an air entraining agent and water. The preparation method of the low-shrinkage recycled fine aggregate ultra-high performance concrete comprises the following steps: step 1, selecting raw materials; 2, raw material pretreatment; step 3, preparing premixed aggregate; step 4, mixing ingredients; and 5, storing a finished product. The concrete strength can be improved, the use cost of the raw materials can be reduced, the concrete has good ductility, the performance of the concrete can be improved, and the anti-cracking, anti-seepage and durability performance can be improved; the retarder is sugar calcium and improves the physical and mechanical properties of the concrete; the air entraining agent is triterpenoid saponin, and the service life of the concrete is prolonged. The surface tension between gas and liquid is reduced, bubbles are rapidly formed, and the air entraining effect is good.
本发明公开了一种低收缩再生细骨料超高性能混凝土，包括以下原料：水泥、硅灰、超细粉煤灰、磨细矿渣粉、机制砂、人工砂、风积砂、玄武岩碎石、砾石、减水剂、膨胀剂、缓凝剂、引气剂、水；一种低收缩再生细骨料超高性能混凝土的制备方法，包括步骤一，原材料选取；步骤二，原材料预处理；步骤三，制备预混合骨料；步骤四，配料混合；步骤五，成品储存。本发明利能够提高混凝土强度，降低原材料的使用成本，使混凝土具有良好的延展性，能够改善混凝土性能，增加抗裂、抗渗和耐久性能，缓凝剂为糖钙，提高混凝土的物理力学性能，引气剂为三萜皂甙，降低气体和液体间的表面张力快速形成气泡，具有较好的引气效果。
Low-shrinkage recycled fine aggregate ultra-high performance concrete and preparation method thereof
一种低收缩再生细骨料超高性能混凝土及其制备方法
LIN YUANYUAN (author) / RUAN YEPING (author) / XIE WENKUN (author) / LIANG YUE (author) / HUANG ZHOUFENG (author) / YE CAIFA (author) / JI YINGCHANG (author) / LUO QIANG (author) / LAN QINGDE (author) / ZHANG LIHUAN (author)
2023-11-17
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Full-recycled fine aggregate ultra-high performance concrete and preparation method thereof
| European Patent Office | 2024
Recycled fine aggregate concrete and preparation method thereof
| European Patent Office | 2022
| European Patent Office | 2022
Modified concrete recycled fine aggregate and preparation method thereof
| European Patent Office | 2024
C80 recycled fine aggregate concrete and preparation method thereof
| European Patent Office | 2023