Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
3D concrete material for printing
The invention discloses a 3D concrete material for printing, which is prepared from the following components in percentage by weight: 20 to 30 percent of Portland cement, 12 to 16 percent of sulphoaluminate cement, 6 to 8 percent of compound fiber, 10 to 20 percent of mineral admixture, 20 to 40 percent of compound fine aggregate, 0.5 to 1 percent of water reducing agent, 0 to 1 percent of accelerator, 1 to 2 percent of cellulose ether and 10 to 12 percent of water. According to the 3D printing concrete material disclosed by the invention, the formula of the cementing material is adjusted, and the Portland cement and the sulphoaluminate cement with the early strength characteristic are jointly used as the cementing material, so that the early hydration speed and the early strength of concrete can be adjusted, and a rapid hardening effect is achieved; the recycled fine aggregate is used for partially replacing traditional fine aggregate such as natural river sand, smooth pumping of materials in the 3D printing process is facilitated, and recycling of waste resources can be achieved; the steel fibers and the basalt fibers are used together, so that the investment cost can be reduced, the composite material is more suitable for being used in various environments, and the fiber reinforcement effect can be fully exerted.
本发明公开一种用于打印的3D混凝土材料，按照重量百分比计，该混凝土材料的组分为：硅酸盐水泥20~30%、硫铝酸盐水泥12~16%、复配纤维6~8%、矿物掺和料10~20%、复配细骨料20~40%、减水剂0.5~1%、速凝剂0~1%、纤维素醚1~2%、水10~12%。本申请公开的3D打印混凝土材料调整了胶凝材料配方，以硅酸盐水泥和具有早强特性的硫铝酸盐水泥共同作为胶凝材料，可调整混凝土早期的水化速度和早期强度，起到速凝的效果；本申请利用再生细骨料部分替代天然河砂等传统细骨料，有利于3D打印过程中材料的顺利泵送，且可实现废弃资源的重复利用；钢纤维和玄武岩纤维的共同使用，不仅可以降低投入成本，而且更加适应于各种环境下使用，可充分发挥纤维增强效果。
3D concrete material for printing
The invention discloses a 3D concrete material for printing, which is prepared from the following components in percentage by weight: 20 to 30 percent of Portland cement, 12 to 16 percent of sulphoaluminate cement, 6 to 8 percent of compound fiber, 10 to 20 percent of mineral admixture, 20 to 40 percent of compound fine aggregate, 0.5 to 1 percent of water reducing agent, 0 to 1 percent of accelerator, 1 to 2 percent of cellulose ether and 10 to 12 percent of water. According to the 3D printing concrete material disclosed by the invention, the formula of the cementing material is adjusted, and the Portland cement and the sulphoaluminate cement with the early strength characteristic are jointly used as the cementing material, so that the early hydration speed and the early strength of concrete can be adjusted, and a rapid hardening effect is achieved; the recycled fine aggregate is used for partially replacing traditional fine aggregate such as natural river sand, smooth pumping of materials in the 3D printing process is facilitated, and recycling of waste resources can be achieved; the steel fibers and the basalt fibers are used together, so that the investment cost can be reduced, the composite material is more suitable for being used in various environments, and the fiber reinforcement effect can be fully exerted.
本发明公开一种用于打印的3D混凝土材料，按照重量百分比计，该混凝土材料的组分为：硅酸盐水泥20~30%、硫铝酸盐水泥12~16%、复配纤维6~8%、矿物掺和料10~20%、复配细骨料20~40%、减水剂0.5~1%、速凝剂0~1%、纤维素醚1~2%、水10~12%。本申请公开的3D打印混凝土材料调整了胶凝材料配方，以硅酸盐水泥和具有早强特性的硫铝酸盐水泥共同作为胶凝材料，可调整混凝土早期的水化速度和早期强度，起到速凝的效果；本申请利用再生细骨料部分替代天然河砂等传统细骨料，有利于3D打印过程中材料的顺利泵送，且可实现废弃资源的重复利用；钢纤维和玄武岩纤维的共同使用，不仅可以降低投入成本，而且更加适应于各种环境下使用，可充分发挥纤维增强效果。
3D concrete material for printing
一种用于打印的3D混凝土材料
WANG XIANGGANG (Autor:in) / ZHANG YAMEI (Autor:in) / LI JIN (Autor:in) / JIA LUTAO (Autor:in)
11.03.2022
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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