Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-freezing-resistance 3D printing concrete material and preparation method thereof
The invention discloses a high-freezing-resistance 3D printing concrete material and a preparation method thereof. The concrete material is prepared from the following components in percentage by weight: 31 to 34 percent of cement, 3 to 8 percent of silica fume, 18 to 28 percent of sand, 18 to 28 percent of coarse aggregate, 0.1 to 0.4 percent of fiber, 0.3 to 1.0 percent of water reducing agent, 0.3 to 1.0 per mill of air entraining agent, 0.2 to 0.8 percent of nano silicon dioxide, 0.2 to 0.8 per mill of silane coupling agent, 0.2 to 0.6 percent of triethanolamine, 0.1 to 0.3 percent of zinc stearate and 13.1 to 13.7 percent of water. According to the invention, the air entraining efficiency of the air entraining agent is improved by utilizing the excellent durability of the coarse aggregate, scientific fiber length and mixing amount, proper air entraining agent mixing amount and nano silicon dioxide, triethanolamine and zinc stearate, so that the prepared concrete material has good anti-freezing property and mechanical property; and automatic construction and template-free construction in an extreme environment are realized.
本发明公开了一种高抗冻性3D打印混凝土材料及其制备方法。按照重量百分比计，该混凝土材料包含31~34%水泥、3~8%硅灰、18~28%砂子、18~28%粗骨料、0.1~0.4%纤维、0.3~1.0%减水剂、0.3~1.0‰引气剂、0.2~0.8%纳米二氧化硅、0.2~0.8‰硅烷偶联剂、0.2~0.6%三乙醇胺、0.1~0.3%硬脂酸锌、13.1~13.7%水。本发明利用粗骨料本身优异的耐久性、科学的纤维长度与掺量、合适的引气剂掺量以及利用纳米二氧化硅、三乙醇胺与硬脂酸锌提高引气剂的引气效率，保证了制备的混凝土材料具有良好的抗冻性能和力学性能，实现了极端环境下自动建造，免模板施工。
High-freezing-resistance 3D printing concrete material and preparation method thereof
The invention discloses a high-freezing-resistance 3D printing concrete material and a preparation method thereof. The concrete material is prepared from the following components in percentage by weight: 31 to 34 percent of cement, 3 to 8 percent of silica fume, 18 to 28 percent of sand, 18 to 28 percent of coarse aggregate, 0.1 to 0.4 percent of fiber, 0.3 to 1.0 percent of water reducing agent, 0.3 to 1.0 per mill of air entraining agent, 0.2 to 0.8 percent of nano silicon dioxide, 0.2 to 0.8 per mill of silane coupling agent, 0.2 to 0.6 percent of triethanolamine, 0.1 to 0.3 percent of zinc stearate and 13.1 to 13.7 percent of water. According to the invention, the air entraining efficiency of the air entraining agent is improved by utilizing the excellent durability of the coarse aggregate, scientific fiber length and mixing amount, proper air entraining agent mixing amount and nano silicon dioxide, triethanolamine and zinc stearate, so that the prepared concrete material has good anti-freezing property and mechanical property; and automatic construction and template-free construction in an extreme environment are realized.
本发明公开了一种高抗冻性3D打印混凝土材料及其制备方法。按照重量百分比计，该混凝土材料包含31~34%水泥、3~8%硅灰、18~28%砂子、18~28%粗骨料、0.1~0.4%纤维、0.3~1.0%减水剂、0.3~1.0‰引气剂、0.2~0.8%纳米二氧化硅、0.2~0.8‰硅烷偶联剂、0.2~0.6%三乙醇胺、0.1~0.3%硬脂酸锌、13.1~13.7%水。本发明利用粗骨料本身优异的耐久性、科学的纤维长度与掺量、合适的引气剂掺量以及利用纳米二氧化硅、三乙醇胺与硬脂酸锌提高引气剂的引气效率，保证了制备的混凝土材料具有良好的抗冻性能和力学性能，实现了极端环境下自动建造，免模板施工。
High-freezing-resistance 3D printing concrete material and preparation method thereof
一种高抗冻性3D打印混凝土材料及其制备方法
ZHANG YAMEI (Autor:in) / SHI RUICHAO (Autor:in) / JIA ZIJIAN (Autor:in)
27.08.2024
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
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