Magnesium oxychloride cement-based material, sand-preventing and sand-fixing plate and preparation methods of magnesium oxychloride cement-based material and sand-preventing and sand-fixing plate

A technology of magnesium oxychloride cement and base materials, which is applied in manufacturing tools, additive processing, infrastructure engineering, etc., and can solve the problems of short life, high cost, and secondary pollution of sand prevention and sand fixation materials

Pending Publication Date: 2021-08-20
深圳市明远建筑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a magnesium oxychloride cement-based material, a sand-proof and sand-fixing board and a prepara

Method used

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  • Magnesium oxychloride cement-based material, sand-preventing and sand-fixing plate and preparation methods of magnesium oxychloride cement-based material and sand-preventing and sand-fixing plate
  • Magnesium oxychloride cement-based material, sand-preventing and sand-fixing plate and preparation methods of magnesium oxychloride cement-based material and sand-preventing and sand-fixing plate
  • Magnesium oxychloride cement-based material, sand-preventing and sand-fixing plate and preparation methods of magnesium oxychloride cement-based material and sand-preventing and sand-fixing plate

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preparation example Construction

[0036] In some embodiments, such as figure 1 Shown, also provide a kind of preparation method of magnesium oxychloride cement-based material, it comprises steps:

[0037] S10, mixing bischofite with water to obtain a magnesium chloride solution;

[0038] S20, adding water reducing agent, thickening water retaining agent, defoamer and water into the magnesium chloride solution in sequence, stirring and mixing evenly with a magnetic stirrer to obtain a mixed magnesium chloride solution;

[0039] S30, uniformly stirring the magnesium chloride, fine sand, thixotropic agent and fiber in a forced slurry mixer in proportion to prepare a powdery cement-based material;

[0040] S40. Pour the mixed magnesium chloride solution into the powdered cement-based material in stages, and stir and mix to prepare the magnesium oxychloride cement-based material.

[0041] Based on the above-mentioned magnesium oxychloride cement-based material, the present invention also provides a sand-proof and...

Embodiment 1

[0047] Prepare the following materials in parts by weight: 8 parts in magnesium chloride, 80 parts in fine sand, bischofite (MgCl 2 ·6H 2 O) 8 parts, 0.5 parts of water-reducing agent, 0.2 parts of thickening and water-retaining agent, 1.0 part of thixotropic agent, 0.3 parts of defoamer, 1.0 part of fiber, and 25 parts of water.

[0048] bischofite (MgCl 2 ·6H 2 O) be made into magnesium chloride solution with water;

[0049] Add water reducer (polycarboxylate high-efficiency water reducer), thickening water retaining agent (hydroxypropyl methyl cellulose ether) and defoamer (high carbon alcohol) into the prepared magnesium chloride solution in sequence, and stir with a magnetic stirrer Mixed evenly for 2min to obtain a mixed magnesium chloride solution for standby use;

[0050] Magnesium chloride, fine sand, thixotropic agent (nano-clay) and fiber are uniformly stirred in a forced slurry mixer for 3 minutes in proportion to obtain powdery magnesium oxychloride cement-bas...

Embodiment 2

[0056] Prepare the following materials in parts by weight: 38 parts of magnesium chloride, 38 parts of fine sand, bischofite (MgCl 2 ·6H 2 O) 19 parts, water reducing agent 1.1 parts, thickening and water retention agent 0.2 parts, thixotropic agent 1.5 parts, defoamer 0.2 parts, fiber 2.0 parts and water 35 parts.

[0057] bischofite (MgCl 2 ·6H 2 O) be made into magnesium chloride solution with water;

[0058] Add water reducer (polycarboxylate high-efficiency water reducer), thickening water retaining agent (hydroxypropyl methyl cellulose ether) and defoamer (high carbon alcohol) into the prepared magnesium chloride solution in sequence, and stir with a magnetic stirrer Mixed evenly for 2min to obtain a mixed magnesium chloride solution for standby use;

[0059] Magnesium chloride, fine sand, thixotropic agent (nano-clay) and fiber are uniformly stirred in a forced slurry mixer for 3 minutes in proportion to obtain powdery magnesium oxychloride cement-based material;

...

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Abstract

The invention provides a magnesium oxychloride cement-based material, a sand prevention and stabilization plate and preparation methods of the magnesium oxychloride cement-based material and sand-preventing and sand-fixing plate. The magnesium oxychloride cement-based material comprises magnesium chloride, fine sand, bischofite, a water reducing agent, a thickening water-retaining agent, a thixotropic agent, a defoaming agent and fibers. The magnesium oxychloride cement-based material provided by the invention has the characteristics that the fluidity is adaptive to extrusion type printing, the early strength of the material is high in the printing process, and the bonding force between printing layers is good, can be used for 3D printing of sand prevention and stabilization plate construction operation at the room temperature of 15-45 DEG C, and can achieve the purposes of waste utilization and ecological environment improvement.

Description

technical field [0001] The invention relates to the technical field of 3D printing of sand-proof and sand-fixing boards, in particular to a magnesium oxychloride cement-based material, a sand-preventing and sand-fixing board and a preparation method thereof. Background technique [0002] The key to desertification control is sand prevention and sand fixation. At present, the main methods of desert control at home and abroad are physical sand fixation (such as stone squares, earth squares) and biological sand fixation (such as planting plants). Several common sand-fixing methods such as: Grass grid sand barrier is a grid-shaped windshield wall made of wheat straw, straw, reed and other materials on the mobile sand dunes to weaken the erosion of wind. Although the grass grid sand barrier is low in cost and simple in construction, it has high efficiency in sand prevention and sand fixation. However, since most of the sand barriers are made of wheat straw or straw, the lifespan...

Claims

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Application Information

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IPC IPC(8): C04B28/32C04B28/30E02D3/00B33Y70/10B33Y10/00B28B1/00
CPCC04B28/32C04B28/30E02D3/00B33Y10/00B33Y70/10B28B1/001C04B2111/00732C04B14/06C04B2103/302C04B2103/465C04B2103/50C04B22/08C04B14/386C04B16/0633C04B16/0641
Inventor 丁华明黄明洋聂稷珍曹斌
Owner 深圳市明远建筑科技有限公司
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