A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
3D printed concrete retard-bonded prestress reinforcement component and preparation method thereof
The invention discloses a 3D printed concrete retard-bonded prestress reinforcement component and a preparation method thereof. The component comprises a 3D printed concrete layer, a viscous mortar layer, an interlayer reinforcing steel wire mesh and retard-setting prestressed tendons; the 3D printed concrete layer is composed of parallel concrete strips, and the retard-setting prestressed tendonsare arranged inside the concrete strips in the longitudinal direction; each concrete strip is prepared from 3D printing ultra-high-performance concrete mortar through 3D printing, and the concrete strip comprises the components including fine sand, silicate cement with the grade P.II 52.5 or more, slag powder, silica fume, steel fiber, sodium gluconate retarder, starch ether, cellulose ether, thixotropic lubricant, polycarboxylic acid water reducers and water. According to the 3D printed concrete retard-bonded prestress reinforcement component and the preparation method thereof, the retard-setting prestressed tendons are combined with the 3D printed concrete, and the retard-setting prestressed tendons are used, so that the crack resistance and interlayer strength of the 3D printed concrete are improved on the premise of less increase of weight and thickness, and the building bearing capacity of the 3D printed concrete is improved.
本发明公开了一种3D打印混凝土缓粘结预应力增强构件及制备方法，该构件包括，3D打印混凝土层、粘性砂浆层、层间强化钢丝网和缓凝结预应力筋，3D打印混凝土层由并列的混凝土条构成，混凝土条内部纵向方向上设有缓凝结预应力筋；所述混凝土条由3D打印用超高性能混凝土砂浆进行3D打印制成，其组分包括：细砂、标号P·II52.5或以上的硅酸盐水泥、矿渣粉、硅灰、钢纤维、葡萄糖酸钠缓凝剂、淀粉醚、纤维素醚、触变润滑剂、聚羧酸系减水剂与水；本发明采用缓凝结预应力筋与3D打印混凝土结合，运用缓凝结预应力筋，在较少增加重量和厚度的前提下提高了3D打印混凝土抗裂性能和层间强度，提高了3D打印混凝土建筑承载力。
3D printed concrete retard-bonded prestress reinforcement component and preparation method thereof
The invention discloses a 3D printed concrete retard-bonded prestress reinforcement component and a preparation method thereof. The component comprises a 3D printed concrete layer, a viscous mortar layer, an interlayer reinforcing steel wire mesh and retard-setting prestressed tendons; the 3D printed concrete layer is composed of parallel concrete strips, and the retard-setting prestressed tendonsare arranged inside the concrete strips in the longitudinal direction; each concrete strip is prepared from 3D printing ultra-high-performance concrete mortar through 3D printing, and the concrete strip comprises the components including fine sand, silicate cement with the grade P.II 52.5 or more, slag powder, silica fume, steel fiber, sodium gluconate retarder, starch ether, cellulose ether, thixotropic lubricant, polycarboxylic acid water reducers and water. According to the 3D printed concrete retard-bonded prestress reinforcement component and the preparation method thereof, the retard-setting prestressed tendons are combined with the 3D printed concrete, and the retard-setting prestressed tendons are used, so that the crack resistance and interlayer strength of the 3D printed concrete are improved on the premise of less increase of weight and thickness, and the building bearing capacity of the 3D printed concrete is improved.
本发明公开了一种3D打印混凝土缓粘结预应力增强构件及制备方法，该构件包括，3D打印混凝土层、粘性砂浆层、层间强化钢丝网和缓凝结预应力筋，3D打印混凝土层由并列的混凝土条构成，混凝土条内部纵向方向上设有缓凝结预应力筋；所述混凝土条由3D打印用超高性能混凝土砂浆进行3D打印制成，其组分包括：细砂、标号P·II52.5或以上的硅酸盐水泥、矿渣粉、硅灰、钢纤维、葡萄糖酸钠缓凝剂、淀粉醚、纤维素醚、触变润滑剂、聚羧酸系减水剂与水；本发明采用缓凝结预应力筋与3D打印混凝土结合，运用缓凝结预应力筋，在较少增加重量和厚度的前提下提高了3D打印混凝土抗裂性能和层间强度，提高了3D打印混凝土建筑承载力。
3D printed concrete retard-bonded prestress reinforcement component and preparation method thereof
一种3D打印混凝土缓粘结预应力增强构件及其制备方法
YU JIAMIAN (author) / YAO YIMING (author)
2020-11-24
Patent
Electronic Resource
Chinese
IPC:
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
B32B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
,
Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse
/
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
/
C04B
Kalk
,
LIME
/
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
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