Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
3D printable high-strength recycled concrete and preparation method thereof
The invention relates to the field of building 3D printing and waste recycling, in particular to 3D printable high-strength recycled concrete and a preparation method thereof. The 3D printable high-strength recycled concrete comprises the following components in parts by weight: 730-1210 parts of cement, 75 to 235 parts of fly ash, 55 to 220 parts of silica fume, 777 to 1356 parts of fine sand, 354 to 661 parts of coarse sand, 8 to 19 parts of steel fiber, 11.1 to 23.7 parts of a water reducing agent, 7.1 to 15.3 parts of nanometer clay, 0.9 to 4.2 parts of cellulose and 187 to 432 parts of water. The 3D printable high-strength recycled concrete not only meets the requirements of pumpability, extrudability and constructability of building 3D printing ink, but also achieves the characteristic of high strength, and is beneficial to realization of engineering high-quality application of a building 3D printing technology.
本发明涉及建筑3D打印及废弃物资源化领域，尤其涉及一种可3D打印的高强再生混凝土及其制备方法。所述可3D打印的高强再生混凝土，以重量份计，包括以下组分：水泥：730‑1210份；粉煤灰：75‑235份；硅灰：55‑220份；细砂：777‑1356份；粗砂：354‑661份；钢纤维：8‑19份；减水剂：11.1‑23.7份；纳米黏土：7.1‑15.3份；纤维素：0.9‑4.2份；水：187‑432份。本发明公开的可3D打印的高强再生混凝土既满足了建筑3D打印油墨可泵送性、可挤出性和可建造性的要求，又达到了高强的特点，其有利于建筑3D打印技术实现工程高品质应用。
3D printable high-strength recycled concrete and preparation method thereof
The invention relates to the field of building 3D printing and waste recycling, in particular to 3D printable high-strength recycled concrete and a preparation method thereof. The 3D printable high-strength recycled concrete comprises the following components in parts by weight: 730-1210 parts of cement, 75 to 235 parts of fly ash, 55 to 220 parts of silica fume, 777 to 1356 parts of fine sand, 354 to 661 parts of coarse sand, 8 to 19 parts of steel fiber, 11.1 to 23.7 parts of a water reducing agent, 7.1 to 15.3 parts of nanometer clay, 0.9 to 4.2 parts of cellulose and 187 to 432 parts of water. The 3D printable high-strength recycled concrete not only meets the requirements of pumpability, extrudability and constructability of building 3D printing ink, but also achieves the characteristic of high strength, and is beneficial to realization of engineering high-quality application of a building 3D printing technology.
本发明涉及建筑3D打印及废弃物资源化领域，尤其涉及一种可3D打印的高强再生混凝土及其制备方法。所述可3D打印的高强再生混凝土，以重量份计，包括以下组分：水泥：730‑1210份；粉煤灰：75‑235份；硅灰：55‑220份；细砂：777‑1356份；粗砂：354‑661份；钢纤维：8‑19份；减水剂：11.1‑23.7份；纳米黏土：7.1‑15.3份；纤维素：0.9‑4.2份；水：187‑432份。本发明公开的可3D打印的高强再生混凝土既满足了建筑3D打印油墨可泵送性、可挤出性和可建造性的要求，又达到了高强的特点，其有利于建筑3D打印技术实现工程高品质应用。
3D printable high-strength recycled concrete and preparation method thereof
一种可3D打印的高强再生混凝土及其制备方法
XIAO JIANZHUANG (Autor:in) / DING TAO (Autor:in) / DUAN ZHENHUA (Autor:in)
04.08.2020
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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