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A platform for research: civil engineering, architecture and urbanism
Powder 3D printing high-toughness quick-hardening sulphoaluminate cement-based material
The invention relates to a powder 3D printing high-toughness fast-hardening sulphoaluminate cement-based material, which is characterized in that nano oxide is adopted to carry out surface modification on fast-hardening sulphoaluminate cement, for the powder 3D printing fast-hardening sulphoaluminate cement material, an aqueous solution is adopted to carry out post-treatment maintenance, a saturated calcium chloride aqueous solution is soaked after printing forming, and the powder 3D printing fast-hardening sulphoaluminate cement-based material is obtained. The non-hydrated sulphoaluminate cement is further reacted and hardened, the non-hydrated sulphoaluminate cement is soaked in the water glass solution again, calcium chloride soaked in pores of the printing model reacts with sodium silicate in the water glass solution to generate calcium silicate, the pores in the printing model are filled with the calcium silicate, and meanwhile hydrated calcium sulphoaluminate crystals and ettringite are tightly bonded; a compact net-shaped structure is formed, and the density and the mechanical property of the material are improved.
本发明为一种粉末3D打印高韧性快硬硫铝酸盐水泥基材料，采用纳米氧化物对快硬硫铝酸盐水泥进行表面改性，针对粉末3D打印快硬硫铝酸盐水泥材料，采用水溶液后处理养护，在打印成型后浸泡饱和氯化钙水溶液，使未水化的硫铝酸盐水泥进一步反应硬化，再次在水玻璃溶液中浸泡，使浸入打印模型孔隙内部的氯化钙与水玻璃溶液中的硅酸钠反应生成硅酸钙，填充打印模型内部孔隙，同时将水化硫铝酸钙晶体和钙矾石紧密粘接，形成致密的网状结构，提高材料的密度及力学性能。
Powder 3D printing high-toughness quick-hardening sulphoaluminate cement-based material
The invention relates to a powder 3D printing high-toughness fast-hardening sulphoaluminate cement-based material, which is characterized in that nano oxide is adopted to carry out surface modification on fast-hardening sulphoaluminate cement, for the powder 3D printing fast-hardening sulphoaluminate cement material, an aqueous solution is adopted to carry out post-treatment maintenance, a saturated calcium chloride aqueous solution is soaked after printing forming, and the powder 3D printing fast-hardening sulphoaluminate cement-based material is obtained. The non-hydrated sulphoaluminate cement is further reacted and hardened, the non-hydrated sulphoaluminate cement is soaked in the water glass solution again, calcium chloride soaked in pores of the printing model reacts with sodium silicate in the water glass solution to generate calcium silicate, the pores in the printing model are filled with the calcium silicate, and meanwhile hydrated calcium sulphoaluminate crystals and ettringite are tightly bonded; a compact net-shaped structure is formed, and the density and the mechanical property of the material are improved.
本发明为一种粉末3D打印高韧性快硬硫铝酸盐水泥基材料，采用纳米氧化物对快硬硫铝酸盐水泥进行表面改性，针对粉末3D打印快硬硫铝酸盐水泥材料，采用水溶液后处理养护，在打印成型后浸泡饱和氯化钙水溶液，使未水化的硫铝酸盐水泥进一步反应硬化，再次在水玻璃溶液中浸泡，使浸入打印模型孔隙内部的氯化钙与水玻璃溶液中的硅酸钠反应生成硅酸钙，填充打印模型内部孔隙，同时将水化硫铝酸钙晶体和钙矾石紧密粘接，形成致密的网状结构，提高材料的密度及力学性能。
Powder 3D printing high-toughness quick-hardening sulphoaluminate cement-based material
一种粉末3D打印高韧性快硬硫铝酸盐水泥基材料
MA GUOWEI (author) / DOU CHAOYU (author) / LI ZHIJIAN (author)
2024-05-28
Patent
Electronic Resource
Chinese
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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