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A platform for research: civil engineering, architecture and urbanism
Biochar concrete with carbon sequestration capability for 3D printing and preparation method thereof
The invention discloses charcoal concrete with carbon sequestration capacity for 3D printing and a preparation method of the charcoal concrete. The charcoal concrete is prepared from the following effective components in parts by weight: 500 to 700 parts of cement, 750 to 1050 parts of river sand, 15 to 21 parts of fly ash, 34 to 46 parts of thickening time control agent, 0 to 14 parts of charcoal, 5 to 7 parts of polycarboxylate superplasticizer and 200 to 280 parts of water. The requirements of 3D printing concrete for yield stress and plastic viscosity are high, the yield stress and plastic viscosity of the concrete cannot be remarkably increased by adding the biochar, the surface area of concrete particles is increased by adding the biochar, in addition, gaps among cement particles are filled with the fine biochar, excessive water exists in a system, and the water content of the system is reduced. Therefore, a lubricating effect is generated, and the flowability and yield stress of the concrete are kept.
用于3D打印的具有固碳能力的生物炭混凝土及其制备方法，该生物炭混凝土由按重量份的下列有效成分组成：水泥500‑700份、河砂750‑1050份、粉煤灰15‑21份、调凝剂34‑46份、生物炭0‑14份、聚羧酸减水剂5‑7份、水200‑280份。3D打印混凝土对屈服应力和塑性粘度的要求较高，本申请中添加本生物炭并不会导致混凝土屈服应力和塑性粘度的显著增加，添加生物炭增加了混凝土颗粒表面积，此外，精细的生物炭填充了水泥颗粒之间的间隙，使得系统中存在“过量水”，从而产生润滑效果，保持了混凝土的流动性及屈服应力。
Biochar concrete with carbon sequestration capability for 3D printing and preparation method thereof
The invention discloses charcoal concrete with carbon sequestration capacity for 3D printing and a preparation method of the charcoal concrete. The charcoal concrete is prepared from the following effective components in parts by weight: 500 to 700 parts of cement, 750 to 1050 parts of river sand, 15 to 21 parts of fly ash, 34 to 46 parts of thickening time control agent, 0 to 14 parts of charcoal, 5 to 7 parts of polycarboxylate superplasticizer and 200 to 280 parts of water. The requirements of 3D printing concrete for yield stress and plastic viscosity are high, the yield stress and plastic viscosity of the concrete cannot be remarkably increased by adding the biochar, the surface area of concrete particles is increased by adding the biochar, in addition, gaps among cement particles are filled with the fine biochar, excessive water exists in a system, and the water content of the system is reduced. Therefore, a lubricating effect is generated, and the flowability and yield stress of the concrete are kept.
用于3D打印的具有固碳能力的生物炭混凝土及其制备方法，该生物炭混凝土由按重量份的下列有效成分组成：水泥500‑700份、河砂750‑1050份、粉煤灰15‑21份、调凝剂34‑46份、生物炭0‑14份、聚羧酸减水剂5‑7份、水200‑280份。3D打印混凝土对屈服应力和塑性粘度的要求较高，本申请中添加本生物炭并不会导致混凝土屈服应力和塑性粘度的显著增加，添加生物炭增加了混凝土颗粒表面积，此外，精细的生物炭填充了水泥颗粒之间的间隙，使得系统中存在“过量水”，从而产生润滑效果，保持了混凝土的流动性及屈服应力。
Biochar concrete with carbon sequestration capability for 3D printing and preparation method thereof
用于3D打印的具有固碳能力的生物炭混凝土及其制备方法
LIU WEIWEI (author) / ZHOU YUQI (author) / FAN XIN (author) / SHI RUIZHI (author) / LI JING (author) / REN YAOHUI (author) / WANG JING (author)
2022-12-06
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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