Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cement additive and preparation method thereof
The invention provides a cement additive, which is prepared from the following components in parts by weight: 10 to 30 parts of silicon dioxide, 5 to 15 parts of titanium dioxide, 15 to 45 parts of aluminum oxide, 3 to 20 parts of iron, 0.1 to 0.8 part of sulfur, 0.4 to 2 parts of sodium oxide and 0.01 to 0.9 part of phosphorus. The invention also provides a preparation method of the cement additive, which comprises the following steps: mixing dried red mud with a reducing agent, and pressing into green pellets; drying the green pellets, and performing reduction treatment and alkali removal treatment to obtain alkali-removed magnetized pellets; and grinding the dealkalized magnetized pellets into fine powder, and carrying out magnetic separation. The cement additive provided by the invention can significantly improve the performance of cement. The preparation method of the cement additive takes the red mud as a raw material, and is low in cost and simple in process.
本发明提供了一种水泥添加剂，以重量份计，包括：二氧化硅10～30份，二氧化钛5～15份，氧化铝15～45份，铁3～20份，硫0.1～0.8份，氧化钠0.4～2份和磷0.01～0.9份。本发明还提供了水泥添加剂的制备方法，包括：将烘干的赤泥与还原剂混合，压制成生球团；将生球团烘干，进行还原处理和去碱处理，得到去碱的磁化球团；去碱的磁化球团磨成细粉，进行磁选分离。本发明的水泥添加剂能够显著提升水泥的性能。本发明的水泥添加剂的制备方法以赤泥为原料，成本低，工艺简单。
Cement additive and preparation method thereof
The invention provides a cement additive, which is prepared from the following components in parts by weight: 10 to 30 parts of silicon dioxide, 5 to 15 parts of titanium dioxide, 15 to 45 parts of aluminum oxide, 3 to 20 parts of iron, 0.1 to 0.8 part of sulfur, 0.4 to 2 parts of sodium oxide and 0.01 to 0.9 part of phosphorus. The invention also provides a preparation method of the cement additive, which comprises the following steps: mixing dried red mud with a reducing agent, and pressing into green pellets; drying the green pellets, and performing reduction treatment and alkali removal treatment to obtain alkali-removed magnetized pellets; and grinding the dealkalized magnetized pellets into fine powder, and carrying out magnetic separation. The cement additive provided by the invention can significantly improve the performance of cement. The preparation method of the cement additive takes the red mud as a raw material, and is low in cost and simple in process.
本发明提供了一种水泥添加剂，以重量份计，包括：二氧化硅10～30份，二氧化钛5～15份，氧化铝15～45份，铁3～20份，硫0.1～0.8份，氧化钠0.4～2份和磷0.01～0.9份。本发明还提供了水泥添加剂的制备方法，包括：将烘干的赤泥与还原剂混合，压制成生球团；将生球团烘干，进行还原处理和去碱处理，得到去碱的磁化球团；去碱的磁化球团磨成细粉，进行磁选分离。本发明的水泥添加剂能够显著提升水泥的性能。本发明的水泥添加剂的制备方法以赤泥为原料，成本低，工艺简单。
Cement additive and preparation method thereof
一种水泥添加剂及其制备方法
FAN BEN (Autor:in) / HUANG LIANHONG (Autor:in)
16.12.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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