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A kind of coral sand permeable material and preparation method thereof

A water-permeable material, coral sand technology, applied in the field of composite materials, can solve the problems of low temperature resistance, salt spray resistance, poor water resistance, high hygroscopicity, etc., and achieve the effect of good water permeability, large porosity, and high edge angle

Active Publication Date: 2021-03-09
BEIJING RECHSAND SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the problems of high hygroscopicity, poor water resistance, high temperature resistance and salt spray resistance of bricks made of coral sand with rich pore structure in the prior art, and to provide a water-resistant and salt-resistant brick. Fog, high temperature resistant coral sand permeable material

Method used

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  • A kind of coral sand permeable material and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0032] The coral sand permeable material provided in this embodiment includes 100 g of coral sand particles with a particle size ranging from 50 to 200 mesh, 20 g of cement, 5 g of hydrophilic epoxy resin, 2 g of dopamine, and 8 g of silica gel adhesive.

[0033] The preparation method is as follows: screen coral sand particles, collect 100g of coral sand particles in the range of 50-200 meshes, 2g of dopamine, mix with 20g of cement and an appropriate amount of water, add 5g of hydrophilic epoxy resin and corresponding curing agent, and stir After mixing evenly, add 8g of silicone adhesive, mix evenly and solidify.

Embodiment 2

[0035] The coral sand permeable material provided in this embodiment includes 100 g of coral sand particles with a particle size in the range of 50 to 200 mesh, 20 g of styrene-acrylic emulsion, 3 g of hydrophilic epoxy resin, 2 g of dopamine, 1 g of EDTA and 8 g of silica gel adhesive.

[0036] The preparation method is as follows: screen the coral sand particles, collect 100g of coral sand particles in the range of 50-200 meshes, 1g of EDTA, mix with 20g of styrene-acrylic emulsion, add 3g of hydrophilic epoxy resin and corresponding curing agent, and stir until the mixture is uniform , and then add 8g of silica gel adhesive to cure.

Embodiment 3

[0038] The coral sand permeable material provided in this embodiment includes 100 g of coral sand particles with a particle size ranging from 50 to 200 mesh, 15 g of kaolin, 3 g of polyurethane resin, 4 g of EDTA, and 11 g of cyanoacrylate adhesive.

[0039] The preparation method is as follows: screen the coral sand particles, collect 100g of coral sand particles in the range of 50-200 mesh, mix them with 15g of kaolin and 4g of EDTA, and then add 3g of polyurethane resin and corresponding curing agent, stir until mixed evenly, and then add Cyanoacrylate 11g, cured.

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Abstract

The invention belongs to the field of composite materials, and in particular relates to a coral sand permeable material and a preparation method thereof. Coral sand is produced by marine microorganisms through long-term evolution. It is a biochemical sedimentary rock. It is completely different from the desert silica sand used to prepare permeable ecological sand in the prior art. It has poor sphericity, high angularity, and porosity. Due to the high rate and other characteristics, it is impossible to use conventional technical means to prepare coral sand blocks to achieve ideal performance effects. However, the present invention obtains a coral sand block that is both permeable and resistant to salt spray through a specific proportion of coral sand particles, fillers, coating agents, additives and adhesives, and limits the size of the coral sand particles to 50-200 mesh. The filler may be one or more of cement, styrene-acrylic emulsion, silicon-acrylic emulsion, kaolin and rosin. Among them, the most preferred filler is a mixed filler of kaolin and rosin. When this filler is selected, the pressure resistance of the obtained coral sand permeable material can reach the best.

Description

technical field [0001] The invention belongs to the field of composite materials, and in particular relates to a coral sand permeable material and a preparation method thereof. Background technique [0002] Remote islands and reefs are located in tropical areas, coral reefs and sandy islands, short of fresh water, and far away from the land. The primary problem of building various engineering facilities on islands and reefs is the lack of building materials such as gravel and river sand, and fresh water for construction is also very scarce; if These materials are transported from land, which not only prolongs the construction period, but also has high transportation costs, and may also be limited by natural conditions such as wind and waves; Ideal material for island construction. [0003] There have been many reports on the foundation backfilling of the yard behind the wharf, and have achieved great technical and economic effects. However, the special geographical location...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/24C04B26/16C04B26/22C04B26/28C04B28/00C04B26/06C04B14/28
CPCC04B14/28C04B26/06C04B26/16C04B26/22C04B26/28C04B28/00C04B28/24C04B2111/00284C04B2201/50C04B7/00C04B24/281C04B24/121C04B2103/0068C04B24/2676C04B14/106C04B24/123C04B24/2652
Inventor 秦升益谢思桃
Owner BEIJING RECHSAND SCI & TECH GRP
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