Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Spraying 3D printing tunnel hole slag concrete and construction method
The invention discloses jet 3D printing tunnel hole slag concrete and a construction method, and the jet 3D printing tunnel hole slag concrete comprises the following components in parts by weight: 870-900 parts of cement, 50-60 parts of fly ash, 50-80 parts of silica fume, 500-600 parts of fine aggregate, 500-600 parts of coarse aggregate, 350-355 parts of water, 20-50 parts of a liquid accelerator, 10-20 parts of a powder accelerator and 1-2 parts of a water reducing agent. The tunnel slag is used for completely replacing natural sand, and the two-component accelerator is used for modifying the tunnel slag, so that the jet 3D printing concrete meets the requirements of quick hardening, early strength and good printability. According to the construction method, the doping amount of the accelerator can be intelligently regulated and controlled according to the angle of the sprayed surface of 0-180 degrees, the requirement for the bonding performance under different angles of the sprayed surface is met, and the construction quality is effectively controlled. The fluidity, printing precision and constructability of the concrete provided by the invention meet the requirements of jet 3D printing, the mechanical property is excellent, the concrete can cope with jet 3D printing at multiple angles, meanwhile, the utilization rate of tunnel hole slag solid waste resources is increased, and the concrete has important social and environmental significance.
本发明公开了一种喷射3D打印隧道洞渣混凝土及施工方法，按重量份数计，包括组分：水泥870‑900份、粉煤灰50‑60份、硅灰50‑80份、细骨料500‑600份、粗骨料500‑600份、水350‑355份、液体速凝剂20‑50份、粉体速凝剂10‑20份、减水剂1‑2份。本发明利用隧道洞渣完全代替天然砂，用双组分速凝剂对其进行改性处理，使得喷射3D打印混凝土满足快硬、早强和良好的可打印性能要求。本发明施工方法可根据受喷面角度0‑180°智能调控速凝剂掺入量，满足不同受喷面角度下粘结性能的要求，有效控制施工质量。本发明提供的混凝土其流动性、打印精度和可建造性符合喷射3D打印要求，力学性能优异，可应对多角度下的喷射3D打印，同时提高了隧道洞渣固废资源的利用率，具有重要的社会和环境意义。
Spraying 3D printing tunnel hole slag concrete and construction method
The invention discloses jet 3D printing tunnel hole slag concrete and a construction method, and the jet 3D printing tunnel hole slag concrete comprises the following components in parts by weight: 870-900 parts of cement, 50-60 parts of fly ash, 50-80 parts of silica fume, 500-600 parts of fine aggregate, 500-600 parts of coarse aggregate, 350-355 parts of water, 20-50 parts of a liquid accelerator, 10-20 parts of a powder accelerator and 1-2 parts of a water reducing agent. The tunnel slag is used for completely replacing natural sand, and the two-component accelerator is used for modifying the tunnel slag, so that the jet 3D printing concrete meets the requirements of quick hardening, early strength and good printability. According to the construction method, the doping amount of the accelerator can be intelligently regulated and controlled according to the angle of the sprayed surface of 0-180 degrees, the requirement for the bonding performance under different angles of the sprayed surface is met, and the construction quality is effectively controlled. The fluidity, printing precision and constructability of the concrete provided by the invention meet the requirements of jet 3D printing, the mechanical property is excellent, the concrete can cope with jet 3D printing at multiple angles, meanwhile, the utilization rate of tunnel hole slag solid waste resources is increased, and the concrete has important social and environmental significance.
本发明公开了一种喷射3D打印隧道洞渣混凝土及施工方法，按重量份数计，包括组分：水泥870‑900份、粉煤灰50‑60份、硅灰50‑80份、细骨料500‑600份、粗骨料500‑600份、水350‑355份、液体速凝剂20‑50份、粉体速凝剂10‑20份、减水剂1‑2份。本发明利用隧道洞渣完全代替天然砂，用双组分速凝剂对其进行改性处理，使得喷射3D打印混凝土满足快硬、早强和良好的可打印性能要求。本发明施工方法可根据受喷面角度0‑180°智能调控速凝剂掺入量，满足不同受喷面角度下粘结性能的要求，有效控制施工质量。本发明提供的混凝土其流动性、打印精度和可建造性符合喷射3D打印要求，力学性能优异，可应对多角度下的喷射3D打印，同时提高了隧道洞渣固废资源的利用率，具有重要的社会和环境意义。
Spraying 3D printing tunnel hole slag concrete and construction method
一种喷射3D打印隧道洞渣混凝土及施工方法
MA GUOWEI (Autor:in) / LIU XIONGFEI (Autor:in) / WANG LI (Autor:in)
16.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
B33Y
ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
,
Additive (generative) Fertigung, d. h. die Herstellung von dreidimensionalen [3D] Bauteilen durch additive Abscheidung, additive Agglomeration oder additive Schichtung, z. B. durch 3D- Drucken, Stereolithografie oder selektives Lasersintern
/
E02D
FOUNDATIONS
,
Gründungen
/
E21D
SHAFTS
,
Schächte
Tunnel sprayed concrete and tunnel concrete spraying construction method
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2024