Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-performance machine-made sand concrete
The invention provides high-performance machine-made sand concrete. Comprising the following components in parts by weight: 100 parts of cement, 20-40 parts of silica fume, 0.8-1.5 parts of a polycarboxylate superplasticizer, 220-250 parts of modified machine-made sand, 0.6-1.2 parts of basalt fiber and 130-150 parts of small spring gravel. The preparation method of the modified machine-made sand comprises the following steps: S1, placing the machine-made sand in a rotatable steel cylinder, and rotating for 3-5 hours; s2, transferring into a rotatable rigid polyvinyl chloride cylinder, respectively arranging a plurality of spray heads outside the rigid polyvinyl chloride cylinder, respectively spraying machine oil and furnace ash to the surface of the machine-made sand, and rotating while spraying the rigid polyvinyl chloride cylinder; and S3, the rigid polyvinyl chloride cylinder continues to rotate, redundant powder is screened out, and the modified machine-made sand is obtained. The furnace ash and the engine oil are adopted as fillers, the machine-made sand rotates in the rigid polyvinyl chloride cylinder, so that the machine-made sand collides and rubs with each other, and meanwhile, holes in the surface of the machine-made sand are continuously filled with the furnace ash and the engine oil, so that the machine-made sand is smoother and smoother, the property of the machine-made sand is closer to that of natural sand, and the use amount of a gel material can be effectively reduced.
本发明提供了一种高性能机制砂混凝土。包括以下组分：水泥100份、微硅粉20‑40份、聚羧酸减水剂0.8‑1.5份、改性机制砂220‑250份、玄武岩纤维0.6‑1.2份、小泉碎石130‑150份。改性机制砂的制备方法为：S1：将机制砂置于可旋转钢圆筒内，旋转3‑5h；S2：转移至可旋转硬聚氯乙烯圆筒内，在硬聚氯乙烯圆筒外分别设置多个喷头，分别向机制砂表面喷射机油和炉灰，边喷射硬聚氯乙烯圆筒边旋转；S3：硬聚氯乙烯圆筒继续旋转，筛除多余粉末，即得改性机制砂。本发明采用炉灰和机油作为填充物，机制砂在硬聚氯乙烯圆筒中旋转，使机制砂之间互相碰撞摩擦，同时，炉灰和机油不断填充机制砂表面的孔洞，从而使机制砂更加圆滑和平整，与天然砂性质更为贴近，可以有效减少凝胶材料的用量。
High-performance machine-made sand concrete
The invention provides high-performance machine-made sand concrete. Comprising the following components in parts by weight: 100 parts of cement, 20-40 parts of silica fume, 0.8-1.5 parts of a polycarboxylate superplasticizer, 220-250 parts of modified machine-made sand, 0.6-1.2 parts of basalt fiber and 130-150 parts of small spring gravel. The preparation method of the modified machine-made sand comprises the following steps: S1, placing the machine-made sand in a rotatable steel cylinder, and rotating for 3-5 hours; s2, transferring into a rotatable rigid polyvinyl chloride cylinder, respectively arranging a plurality of spray heads outside the rigid polyvinyl chloride cylinder, respectively spraying machine oil and furnace ash to the surface of the machine-made sand, and rotating while spraying the rigid polyvinyl chloride cylinder; and S3, the rigid polyvinyl chloride cylinder continues to rotate, redundant powder is screened out, and the modified machine-made sand is obtained. The furnace ash and the engine oil are adopted as fillers, the machine-made sand rotates in the rigid polyvinyl chloride cylinder, so that the machine-made sand collides and rubs with each other, and meanwhile, holes in the surface of the machine-made sand are continuously filled with the furnace ash and the engine oil, so that the machine-made sand is smoother and smoother, the property of the machine-made sand is closer to that of natural sand, and the use amount of a gel material can be effectively reduced.
本发明提供了一种高性能机制砂混凝土。包括以下组分：水泥100份、微硅粉20‑40份、聚羧酸减水剂0.8‑1.5份、改性机制砂220‑250份、玄武岩纤维0.6‑1.2份、小泉碎石130‑150份。改性机制砂的制备方法为：S1：将机制砂置于可旋转钢圆筒内，旋转3‑5h；S2：转移至可旋转硬聚氯乙烯圆筒内，在硬聚氯乙烯圆筒外分别设置多个喷头，分别向机制砂表面喷射机油和炉灰，边喷射硬聚氯乙烯圆筒边旋转；S3：硬聚氯乙烯圆筒继续旋转，筛除多余粉末，即得改性机制砂。本发明采用炉灰和机油作为填充物，机制砂在硬聚氯乙烯圆筒中旋转，使机制砂之间互相碰撞摩擦，同时，炉灰和机油不断填充机制砂表面的孔洞，从而使机制砂更加圆滑和平整，与天然砂性质更为贴近，可以有效减少凝胶材料的用量。
High-performance machine-made sand concrete
一种高性能机制砂混凝土
ZENG QIRUI (Autor:in) / LI XIAOTING (Autor:in) / LI ZHIYU (Autor:in) / CHEN WENXUAN (Autor:in) / MENG HUICHENG (Autor:in) / YUAN TING (Autor:in) / SHEN LEI (Autor:in) / YANG TING (Autor:in) / TANG YUNDAN (Autor:in)
02.06.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2021
| Europäisches Patentamt | 2021
Machine-made sand high-performance concrete and preparation method thereof
| Europäisches Patentamt | 2023