Extrusion curing type 3D printing fiber-alkali slag material and preparation method thereof

The invention discloses an extrusion curing type 3D printing fiber-alkali slag material and a preparation method thereof, relates to the field of buildings, and aims to solve the technical problems existing in 3D printing of fiber-alkali slag. The material comprises the following components in percentage by mass: 35%-55% of industrial slag or slag-like powder, 0.5%-1% of fiber, 15%-25% of MgO, 5%-15% of an expanding agent CaO, 10%-25% of fine aggregate, 0.05%-0.08% of lithium carbonate, 0.02%-0.05% of sodium gluconate, an alkali activator accounting for 10%-20% of the industrial slag or slag-like powder and water accounting for 40%-45% of the industrial slag or slag-like powder. According to the invention, an extrusion curing type 3D printing technology is adopted, and the fiber-alkali slag material is obtained by changing the type and mixing amount of an exciting agent, the use amount of water, the type and mixing amount of fibers, the mixing amount of MgO, the mixing amount of an expanding agent and the mix