Binder and preparation method thereof

Abstract

The invention relates to a binder. The binding comprises a component A and a component B, wherein the component A comprises the following materials by mass percent: 5%-80% of epoxy resin, 1%-20% of poly-mercaptan resin, 1%-50% of weather-proof accelerant, 1%-40% of hydrophilic resin, and 1%-8% of ammonia catalyst; the component B comprises the following material by mass percent: 5%-60% of one or more of boron trifluoride-amine complex curing agent, aromatic amine and mannich addition polyamine; hydrophilic perssad is introduced into the molecule of the hydrophilic resin through chemical reaction, so that the hydrophilic resin becomes the resin capable of reacting and has self-emulsifying property. The binder and solid particle aggregate with grain size of 0.08-1.18mm are mixed to be used as a road pavement material and directly paved on permeable concrete, the mixture of the binder and the solid particle aggregate and the concrete are bonded so as to form a precast block body with a bilayer structure, so that the whole precast block body has good drainability and permeability.

Description

technical field [0001] The invention relates to road paving materials, in particular to a binder used in road paving and a preparation method thereof. Background technique [0002] At present, the main permeable pavement materials on the market use sand and gravel as the aggregate. The hole channel realizes water permeability, such as: the publication number is CN1566248A. Cement-based: Because it relies on the binder formed by the slurry formed by cement and water, it is very difficult to control the thickness of the slurry, which may easily lead to problems such as impermeability, low strength, and poor wear resistance. [0003] Epoxy, polyurethane, and acrylic resins are all high-molecular materials, which have poor affinity for water, that is, the wetting angle is relatively large. When the water-permeable channel is small, the surface tension of the water is greater than the gravity of the water itself, resulting in impervious to water. Therefore, no matter cement-ba...

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Problems solved by technology

Cement-based: Because it relies on the binder composed of cement and water slurry, it is very difficult to control the thickness of the slurry, which may easily lead to problems such as impermeability, low strength, and poor wear resistance.

[0003] Epoxy, polyurethane, and acrylic resins are all high-molecular materials, which have poor affinity for water, that is, the wetting angle is relatively large. When the water-permeable channel is small, the surface tension of water is greater than the gravity of water itself, resulting in impermeable

Therefore, whether cement-based or epoxy-based, polyurethane, or acrylic resin-based road permeable paving materials, it is easy to cause problems such as surface pollution and blockage.

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