Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
3D printing ultra-high-performance fiber concrete material containing coarse aggregate and preparation method of 3D printing ultra-high-performance fiber concrete material
The invention belongs to the technical field of building materials, and particularly relates to a 3D printing ultra-high-performance fiber concrete material containing coarse aggregate and preparation of the 3D printing ultra-high-performance fiber concrete material. The concrete material is prepared from the following components in parts by weight: 180 to 500 parts of coarse aggregate, 600 to 700 parts of cement, 200 to 400 parts of silica fume, 300 to 450 parts of fine sand, 150 to 350 parts of medium sand, 10 to 15 parts of water reducing agent, 100 to 160 parts of water, 140 to 160 parts of steel fiber and 0.5 to 2 parts of cellulose. The concrete material disclosed by the invention can be prepared by utilizing a 3D printing technology. According to the formula, the bonding strength between printing layers is improved by doping the coarse aggregate, the use amount of a cementing material mainly comprising cement is effectively reduced, and the mechanical properties of high strength and high toughness equivalent to those of conventional 3D printing UHPFRC without the coarse aggregate are achieved while the preparation cost is reduced. Particularly, the formula can effectively guarantee the formability of UHPFRC containing coarse aggregate (CA) in the printing process.
本发明属于建筑材料技术领域，更具体地，涉及一种含粗骨料的3D打印超高性能纤维混凝土材料及制备。该混凝土材料包括180‑500份粗骨料、600‑700份水泥、200‑400份硅灰、300‑450份细砂、150‑350份中砂、10‑15份减水剂、100‑160份水、140‑160份钢纤维以及0.5‑2份纤维素。本发明的混凝土材料可利用3D打印技术实现制备。该配方通过掺入粗骨料提高打印层间的粘结强度，并有效降低以水泥为主的胶凝材料用量，在降低制备成本的同时达到与常规不含粗骨料3D打印UHPFRC相当的高强度和高韧性力学性能。特别地，此配方可有效保证含粗骨料(CA)的UHPFRC打印过程中的成型性。
3D printing ultra-high-performance fiber concrete material containing coarse aggregate and preparation method of 3D printing ultra-high-performance fiber concrete material
The invention belongs to the technical field of building materials, and particularly relates to a 3D printing ultra-high-performance fiber concrete material containing coarse aggregate and preparation of the 3D printing ultra-high-performance fiber concrete material. The concrete material is prepared from the following components in parts by weight: 180 to 500 parts of coarse aggregate, 600 to 700 parts of cement, 200 to 400 parts of silica fume, 300 to 450 parts of fine sand, 150 to 350 parts of medium sand, 10 to 15 parts of water reducing agent, 100 to 160 parts of water, 140 to 160 parts of steel fiber and 0.5 to 2 parts of cellulose. The concrete material disclosed by the invention can be prepared by utilizing a 3D printing technology. According to the formula, the bonding strength between printing layers is improved by doping the coarse aggregate, the use amount of a cementing material mainly comprising cement is effectively reduced, and the mechanical properties of high strength and high toughness equivalent to those of conventional 3D printing UHPFRC without the coarse aggregate are achieved while the preparation cost is reduced. Particularly, the formula can effectively guarantee the formability of UHPFRC containing coarse aggregate (CA) in the printing process.
本发明属于建筑材料技术领域，更具体地，涉及一种含粗骨料的3D打印超高性能纤维混凝土材料及制备。该混凝土材料包括180‑500份粗骨料、600‑700份水泥、200‑400份硅灰、300‑450份细砂、150‑350份中砂、10‑15份减水剂、100‑160份水、140‑160份钢纤维以及0.5‑2份纤维素。本发明的混凝土材料可利用3D打印技术实现制备。该配方通过掺入粗骨料提高打印层间的粘结强度，并有效降低以水泥为主的胶凝材料用量，在降低制备成本的同时达到与常规不含粗骨料3D打印UHPFRC相当的高强度和高韧性力学性能。特别地，此配方可有效保证含粗骨料(CA)的UHPFRC打印过程中的成型性。
3D printing ultra-high-performance fiber concrete material containing coarse aggregate and preparation method of 3D printing ultra-high-performance fiber concrete material
一种含粗骨料的3D打印超高性能纤维混凝土材料及制备
YANG ZHENJUN (Autor:in) / FERNAND (Autor:in) / LIN MO (Autor:in)
12.04.2024
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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