Steel slag permeable building material and manufacturing method thereof
A technology of building materials and manufacturing methods, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of waste of resources, comprehensive utilization rate of less than 10%, poor utilization, etc., to achieve utilization and water permeability good performance effect
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[0025] Example 1
[0026] This embodiment provides a building material with unique water permeability and water permeability made from steel slag, including: steel slag with a polymer coating layer and an adhesive, and the steel slag with a polymer coating layer is mixed with the adhesive bonding and curing; wherein, the particle diameter of the steel slag is 0.01-20mm, and the polymer coating layer is one or more of epoxy resin adhesive, acrylic resin adhesive and polyurethane adhesive; the adhesive is One or more of epoxy resin adhesive, acrylic resin adhesive and polyurethane adhesive. Use steel slag with a particle diameter of 0.01-20mm to mix with polymer to make particles with a polymer coating layer, and then bond the steel slag with a polymer coating layer through an adhesive to form a building material with good water permeability. It can be applied to the production of building materials and realize the recovery and utilization of steel slag. The polymer coating la...
Example Embodiment
[0040] Embodiment 2
[0041] The present embodiment provides a method for preparing a water-permeable functional brick, which includes the processes of mixing, molding and solidifying the steel slag according to the present invention and a polymer.
[0042] Specific steps include:
[0043] Step S1: screen the steel slag by particle size, and select the steel slag with a particle diameter of 0.01-20 mm;
[0044] Step S2: carrying out polymer coating layer processing on the screened steel slag;
[0045] Step S3: mixing and stirring the steel slag with the polymer coating layer and the adhesive;
[0046] Step S4: pour the steel slag mixture in step S3 into a brick-making mold for molding and manufacturing;
[0047] The polymer coating layer is one or more of epoxy resin adhesive, acrylic resin adhesive and polyurethane adhesive; the adhesive is one or more of epoxy resin adhesive, acrylic resin adhesive and polyurethane adhesive kind.
[0048] Taking the functional brick as ...
Example Embodiment
[0056] Embodiment 3
[0057] (1) Preparation of steel slag that meets the particle size
[0058] According to the special physical and chemical properties of the steel slag, the steel slag is pre-pulverized, baked and dried, magnetically sieved, ground, pulverized and classified, and classified by wet magnetic separation. The special surface treatment activates the steel slag. The surface treatment can be grinding or changing the structure and shape of the tailings particles by using a chemical activator. The chemical activator can be formulated with acidic substances, and the surface of the steel slag can be treated with acidic substances to increase the surface area of the steel slag. .
[0059] (2) Preparation of steel slag with polymer coating
[0060] 24g epoxy adhesive (among which, 18g is NPEL-127 epoxy resin, epoxy equivalent is 176-184g / eq; 2g is NPPN-431A70 epoxy resin; 4g is T31 curing agent); 0.5g light stabilizer GW- 3346, the average particle diameter that s...
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