Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Dicalcium silicate activating agent as well as preparation method and application thereof
The invention relates to the technical field of building materials, in particular to a dicalcium silicate activating agent as well as a preparation method and application thereof, and the preparation method comprises the following steps: jointly grinding 75-80 parts of straw ash, 10-15 parts of pre-hydrated steel slag, 5-10 parts of geopolymer hydrate and 3-5 parts of diethanol-isopropanolamine until the specific surface area is 450m < 2 >/kg-500m < 2 >/kg. The prepared dicalcium silicate activator is doped according to 15-20% of the mass of dicalcium silicate, and the 28d hydration degree of dicalcium silicate can be improved by 30-40%, so that the use amount of a concrete cementing material with the same strength grade is reduced by 10-15%, the index of the concrete cementing material is reduced by 1-1.5 kg/(m < 3 >. MPa), and the dicalcium silicate activator is suitable for low-carbon preparation of cement concrete and comprehensive utilization of refractory silicate waste residues.
本发明涉及建筑材料技术领域，尤其是一种硅酸二钙活化剂及其制备方法和应用，其制备方法是将75～80份秸秆灰、10～15份预水化钢渣、5～10份地聚合物水化物和3～5份二乙醇一异丙醇胺共同磨细至比表面积450m2/kg～500m2/kg。制成的硅酸二钙活化剂按照硅酸二钙质量的15％～20％掺用，可使硅酸二钙28d的水化程度提高30％～40％，从而使相同强度等级的混凝土胶凝材料用量减少10％～15％、混凝土胶凝材料指数下降1～1.5kg/(m3﹒MPa)，适用于水泥混凝土低碳制备和难处置硅酸盐废渣的综合利用。
Dicalcium silicate activating agent as well as preparation method and application thereof
The invention relates to the technical field of building materials, in particular to a dicalcium silicate activating agent as well as a preparation method and application thereof, and the preparation method comprises the following steps: jointly grinding 75-80 parts of straw ash, 10-15 parts of pre-hydrated steel slag, 5-10 parts of geopolymer hydrate and 3-5 parts of diethanol-isopropanolamine until the specific surface area is 450m < 2 >/kg-500m < 2 >/kg. The prepared dicalcium silicate activator is doped according to 15-20% of the mass of dicalcium silicate, and the 28d hydration degree of dicalcium silicate can be improved by 30-40%, so that the use amount of a concrete cementing material with the same strength grade is reduced by 10-15%, the index of the concrete cementing material is reduced by 1-1.5 kg/(m < 3 >. MPa), and the dicalcium silicate activator is suitable for low-carbon preparation of cement concrete and comprehensive utilization of refractory silicate waste residues.
本发明涉及建筑材料技术领域，尤其是一种硅酸二钙活化剂及其制备方法和应用，其制备方法是将75～80份秸秆灰、10～15份预水化钢渣、5～10份地聚合物水化物和3～5份二乙醇一异丙醇胺共同磨细至比表面积450m2/kg～500m2/kg。制成的硅酸二钙活化剂按照硅酸二钙质量的15％～20％掺用，可使硅酸二钙28d的水化程度提高30％～40％，从而使相同强度等级的混凝土胶凝材料用量减少10％～15％、混凝土胶凝材料指数下降1～1.5kg/(m3﹒MPa)，适用于水泥混凝土低碳制备和难处置硅酸盐废渣的综合利用。
Dicalcium silicate activating agent as well as preparation method and application thereof
一种硅酸二钙活化剂及其制备方法和应用
JIANG YAQING (Autor:in) / YAN ZIYUE (Autor:in) / YIN KANGTING (Autor:in) / WANG LIMENG (Autor:in)
07.04.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Dicalcium silicate doped with sulfur
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