Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Formula and preparation method of solid waste concrete material for 3D printing
The invention provides a formula of a solid waste concrete material for 3D printing and a preparation method of the solid waste concrete material, and is characterized in that the solid waste concrete material comprises the following components in parts by weight: 1 part of cement; 0.6 part of fly ash; 0.4 part of silica fume; 0.07 to 0.78 part of water; 1 to 2 parts of reclaimed sand; 0.01 part of fiber; and 0.024 part of a water reducing agent. The internal compactness of the 3D printing concrete can be improved, formation of concrete cracks can be inhibited, the tensile strength and the bending strength of the concrete can be improved, the toughness increasing effect is best, the reclaimed sand subjected to the crushing process is more stable in grading, moderate in specification and size and more suitable as a filling material compared with natural sand, internal balanced stress of the concrete is facilitated, and the service life of the concrete is prolonged. Therefore, the overall mechanical property of the 3D printing concrete is superior to that of common concrete.
本发明提供一种用于3D打印的固废混凝土材料的配方及其制备方法，其特征在于：包括如下组分，各组分以重量份计，水泥：1份；粉煤灰：0.6份；硅灰：0.4份；水：0.07份‑0.78份；再生砂：1份‑2份；纤维：0.01份；减水剂：0.024份。本发明可以改善3D打印混凝土内部的密实度，抑制混凝土裂缝的形成、提高混凝土抗拉和抗弯强度、增加韧性的效果最好，经过破碎工艺后的再生砂比天然砂，级配较稳定，规格尺寸适中，作为填充材料较为合适，有利于混凝土内部均衡受力，因此3D打印混凝土整体的力学性能优于普通混凝土。
Formula and preparation method of solid waste concrete material for 3D printing
The invention provides a formula of a solid waste concrete material for 3D printing and a preparation method of the solid waste concrete material, and is characterized in that the solid waste concrete material comprises the following components in parts by weight: 1 part of cement; 0.6 part of fly ash; 0.4 part of silica fume; 0.07 to 0.78 part of water; 1 to 2 parts of reclaimed sand; 0.01 part of fiber; and 0.024 part of a water reducing agent. The internal compactness of the 3D printing concrete can be improved, formation of concrete cracks can be inhibited, the tensile strength and the bending strength of the concrete can be improved, the toughness increasing effect is best, the reclaimed sand subjected to the crushing process is more stable in grading, moderate in specification and size and more suitable as a filling material compared with natural sand, internal balanced stress of the concrete is facilitated, and the service life of the concrete is prolonged. Therefore, the overall mechanical property of the 3D printing concrete is superior to that of common concrete.
本发明提供一种用于3D打印的固废混凝土材料的配方及其制备方法，其特征在于：包括如下组分，各组分以重量份计，水泥：1份；粉煤灰：0.6份；硅灰：0.4份；水：0.07份‑0.78份；再生砂：1份‑2份；纤维：0.01份；减水剂：0.024份。本发明可以改善3D打印混凝土内部的密实度，抑制混凝土裂缝的形成、提高混凝土抗拉和抗弯强度、增加韧性的效果最好，经过破碎工艺后的再生砂比天然砂，级配较稳定，规格尺寸适中，作为填充材料较为合适，有利于混凝土内部均衡受力，因此3D打印混凝土整体的力学性能优于普通混凝土。
Formula and preparation method of solid waste concrete material for 3D printing
一种用于3D打印的固废混凝土材料的配方及其制备方法
ZHOU YONGXIANG (Autor:in) / SUN LINLI (Autor:in) / PAN FANG (Autor:in) / MAO YIJIA (Autor:in) / ZHANG NANTONG (Autor:in)
23.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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