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A platform for research: civil engineering, architecture and urbanism
High-ductility cement-based composite material capable of being poured underwater and preparation method thereof
The invention discloses a high-ductility cement-based composite material capable of being poured underwater, which is prepared from the following raw materials in percentage by weight: 10 to 30 percent of cement, 40 to 60 percent of coal ash, 0.5 to 1.5 percent of silica fume, 10 to 20 percent of water, 10 to 20 percent of sea sand, 1 to 2 percent of flocculating agent, 0 to 2.5 percent of early strength agent, 0.1 to 0.5 percent of water reducing agent and fibers, the fiber mixing amount is 2% of the total volume. The invention further discloses a preparation method and a pouring method of the material. The prepared material not only has the characteristics of high ductility and high energy consumption of ECC, but also has the characteristics of underwater pouring without dispersion. The underwater panel has excellent energy-dissipating capacity, can reasonably release complex stress generated from the outside, avoids generation of harmful cracks, and improves the durability of the underwater panel. And the hydraulic structure can operate normally in the repairing period, time, resource and manpower consumption in the repairing process is reduced, and the crack existing part of the hydraulic structure can be repaired in time.
本发明公开了一种能够水下浇筑的高延性水泥基复合材料，该材料由如下重量分数的原料组成：水泥10％‑30％、粉煤灰40％‑60％、硅灰0.5％‑1.5％、水10％‑20％、海砂10％‑20％、絮凝剂1％‑2％、早强剂0％‑2.5％、减水剂0.1％‑0.5％，所述材料还包括纤维，纤维掺量为总体积的2％。还公开了该材料的制备方法及浇筑方法。所制备的材料不仅具有ECC高延性高耗能的特点，同时具备了可水下浇筑不分散的特点。具有优异的耗能能力，可合理释放外部产生的复杂应力，避免有害裂缝的产生，提高水下面板耐久性。修补期间水工结构可正常运行，降低了修补过程中的时间、资源和人力消耗，能够及时对水工结构裂缝存在部位进行修补。
High-ductility cement-based composite material capable of being poured underwater and preparation method thereof
The invention discloses a high-ductility cement-based composite material capable of being poured underwater, which is prepared from the following raw materials in percentage by weight: 10 to 30 percent of cement, 40 to 60 percent of coal ash, 0.5 to 1.5 percent of silica fume, 10 to 20 percent of water, 10 to 20 percent of sea sand, 1 to 2 percent of flocculating agent, 0 to 2.5 percent of early strength agent, 0.1 to 0.5 percent of water reducing agent and fibers, the fiber mixing amount is 2% of the total volume. The invention further discloses a preparation method and a pouring method of the material. The prepared material not only has the characteristics of high ductility and high energy consumption of ECC, but also has the characteristics of underwater pouring without dispersion. The underwater panel has excellent energy-dissipating capacity, can reasonably release complex stress generated from the outside, avoids generation of harmful cracks, and improves the durability of the underwater panel. And the hydraulic structure can operate normally in the repairing period, time, resource and manpower consumption in the repairing process is reduced, and the crack existing part of the hydraulic structure can be repaired in time.
本发明公开了一种能够水下浇筑的高延性水泥基复合材料，该材料由如下重量分数的原料组成：水泥10％‑30％、粉煤灰40％‑60％、硅灰0.5％‑1.5％、水10％‑20％、海砂10％‑20％、絮凝剂1％‑2％、早强剂0％‑2.5％、减水剂0.1％‑0.5％，所述材料还包括纤维，纤维掺量为总体积的2％。还公开了该材料的制备方法及浇筑方法。所制备的材料不仅具有ECC高延性高耗能的特点，同时具备了可水下浇筑不分散的特点。具有优异的耗能能力，可合理释放外部产生的复杂应力，避免有害裂缝的产生，提高水下面板耐久性。修补期间水工结构可正常运行，降低了修补过程中的时间、资源和人力消耗，能够及时对水工结构裂缝存在部位进行修补。
High-ductility cement-based composite material capable of being poured underwater and preparation method thereof
能够水下浇筑的高延性水泥基复合材料及其制备方法
GAO SHULING (author) / ZHANG TIANYUN (author)
2024-04-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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