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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Embodiment 1
[0026] This embodiment provides a building material with unique water permeability and water permeability made of steel slag, including: steel slag with a polymer coating layer and an adhesive, and the steel slag with a polymer coating layer is mixed through the adhesive Bonding and curing; wherein, the particle diameter of the steel slag is 0.01-20mm, and the polymer coating 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 and a polymer to make particles with a polymer coating, and then use an adhesive to bond the steel slag with a polymer coating to form a building material with good water permeability. It can be applied to the production of building materials, realizing the recycling and utilization of steel slag. The polymer coating layer can significantly improve the interface ...
Embodiment 2
[0041] This embodiment provides a method for preparing a water-permeable functional brick, which includes mixing, molding and curing the steel slag according to the present invention and a polymer.
[0042] Specific steps include:
[0043] Step S1: performing particle size screening on the steel slag, and selecting steel slag with a particle diameter of 0.01-20 mm;
[0044] Step S2: processing the screened steel slag with a polymer coating;
[0045] Step S3: mixing 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 mold for molding;
[0047] The polymer coating 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 functional bricks as an example, in one embodiment, the adhesive is an epoxy resin adhesive. According to the preparation ...
Embodiment 3
[0057] (1) Preparation of steel slag that meets the particle size
[0058] According to the special physical and chemical characteristics of the steel slag, the steel slag is pre-crushed, baked and dried, magnetically separated and sieved, ground and crushed and classified, wet magnetic separation and classified, and the preferred grades are classified according to the particle size, and then passed through Special surface treatment activates the steel slag. The surface treatment can be ground or the chemical activator can be used to change the structure and shape of the tailing slag particles. The chemical activator can be prepared 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 (18g is NPEL-127 epoxy resin, epoxy equivalent is 176-184g / eq; 2g is NPPN-431A70 epoxy resin; 4g is T31 curing ag...
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