The molding processes of steel fiber reinforced cement mainly include the following:
Extrusion molding method: The steel fiber reinforced cement is uniformly extruded and molded to form pipes, plates, rods, etc. of various shapes.
Composite molding method: Steel fiber reinforced cement is composited with other materials (such as polymers, steel bars, wood, etc.) to form composite materials.
Casting molding method: The steel fiber reinforced cement is poured into a mold and hardened naturally at room temperature to form components of various sizes and shapes, such as wall panels, floors, roofs, cement bridges, etc.
Spray molding method: The steel fiber reinforced cement is sprayed on the surface of the building through a spraying device, which can be used for wall insulation, waterproofing and fireproofing, etc.
The preparation process of steel fiber reinforced cement includes the following steps:
Mixing equipment: A forced concrete mixer is usually used. When the fiber content increases, the mixing volume should be appropriately reduced, and the mixing volume should not be greater than 80% of its rated mixing volume.
Fiber addition method: Add materials through a shaking screen or disperser to ensure that the fibers can be evenly dispersed in the concrete.
Making order: It is recommended to mix steel fiber, cement, coarse and fine aggregates first, and then add water to ensure that the fibers are evenly dispersed in the cement hardening body.
Casting and vibrating molding: Use a general vibrating table or surface vibrator for vibration, and avoid using internal vibrators to prevent fiber breakage or agglomeration.
Fiber orientation treatment: According to the stress characteristics of the structural parts, the fibers can be artificially oriented, such as magnetic orientation, vibration orientation, and extrusion orientation.