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Magnesium oxychloride-based immature soil curing agent and preparation method and application thereof

A technology of magnesium oxychloride-based raw soil and curing agent, which is used in manufacturing tools, ceramic molding machines, etc., can solve the problems of poor water resistance, low strength, and high energy consumption, and achieve high curing strength, good water resistance, and low energy consumption. Effect

Inactive Publication Date: 2019-04-16
深圳市元亨环保产业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a magnesium oxychloride-based raw soil curing agent to solve the problems of low strength, poor water resistance, high energy consumption and environmental protection when using inorganic cementitious materials such as cement, lime or gypsum to solidify raw soil.

Method used

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  • Magnesium oxychloride-based immature soil curing agent and preparation method and application thereof
  • Magnesium oxychloride-based immature soil curing agent and preparation method and application thereof
  • Magnesium oxychloride-based immature soil curing agent and preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0027] A magnesium oxychloride-based soil curing agent, by weight, the magnesium oxychloride-based soil curing agent comprises: 100 parts of lightly burned magnesium oxide powder, density 1.15g / cm 3 67 parts of magnesium chloride solution, 0.5 parts of polyvinyl alcohol fiber, 1.5 parts of phosphoric acid and sodium dihydrogen phosphate (1:1 by weight), 1.5 parts of ferrous sulfate.

[0028] Preparation process: prepare materials according to the above ratio; put the magnesium chloride solution into the mixer, add polyvinyl alcohol fiber (toughened and crack-resistant fiber), phosphoric acid and sodium dihydrogen phosphate (strengthening aid), stir for 2 minutes, and then add light-burned magnesium oxide powder, stir for 3 minutes, and finally add ferrous sulfate (water-resistant additive), and stir for 2 minutes to obtain magnesium oxychloride-based soil curing agent.

[0029] Raw soil curing: by weight, take 20 parts of raw soil and 170 parts of the above-mentioned magnesium...

Embodiment 2

[0032] A magnesium oxychloride-based soil curing agent, by weight, the magnesium oxychloride-based soil curing agent comprises: 100 parts of lightly burned magnesium oxide powder, density 1.15g / cm 3 79.5 parts of magnesium chloride solution, 0.6 parts of polyvinyl alcohol fiber, 1.3 parts of citric acid and sodium dihydrogen phosphate (1:1 by weight), 1.3 parts of ferrous sulfate.

[0033] Preparation process: prepare materials according to the above ratio; put the magnesium chloride solution into the mixer, add polyvinyl alcohol fiber (toughening and anti-cracking fiber), citric acid and sodium dihydrogen phosphate (strengthening aid), stir for 3 minutes, and then add light burning oxidation Magnesium powder, stirred for 3 minutes, and finally added ferrous sulfate (water-resistant additive), stirred for 2 minutes to obtain magnesium oxychloride-based soil curing agent.

[0034] Raw soil curing: by weight, take 60 parts of raw soil and 183 parts of the above-mentioned magnesi...

Embodiment 3

[0037] A magnesium oxychloride-based soil curing agent, by weight, the magnesium oxychloride-based soil curing agent comprises: 100 parts of lightly burned magnesium oxide powder, density 1.15g / cm 3 94 parts of magnesium chloride solution, 0.7 parts of polyvinyl alcohol fiber, 2.0 parts of citric acid and sodium dihydrogen phosphate (1:1 by weight), 2.0 parts of ferrous sulfate.

[0038] Preparation process: prepare materials according to the above ratio; put the magnesium chlorate solution into the mixer, add polyvinyl alcohol fiber (toughened and anti-crack fiber), citric acid and sodium dihydrogen phosphate (strengthening aid), stir for 3 minutes, and then add light Burn magnesium oxide powder, stir for 3 minutes, and finally add ferrous sulfate (water resistance additive), and stir for 2 minutes to obtain magnesium oxychloride-based soil curing agent.

[0039] Raw soil curing: by weight, take 90 parts of raw soil and 198 parts of the above-mentioned magnesium oxychloride-b...

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Abstract

The invention relates to a magnesium oxychloride-based immature soil curing agent and a preparation method and application thereof. The magnesium oxychloride-based immature soil curing agent is prepared from, by weight, 100 parts of light burned magnesium oxide powder, 50-250 parts of a magnesium chloride solution, 0.1-2.0 parts of toughened crack-resistant fiber, 0.5-5.0 parts of a strengtheningauxiliary and 0.8-8.0 parts of water resistant additives. The preparation method comprises the steps that a magnesium oxide solution is put into a stirrer, the toughened crack-resistant fiber, the light burned magnesium oxide powder, the strengthening auxiliary and the water resistant additives are added, and stirring is conducted for a period of time. For the application, 100 parts by weight of immature soil and 130-900 parts by weight of the curing agent are taken, mixed and stirred to be uniform, and curing sample slurry is obtained, then the curing sample slurry is put into a mold to be cured and formed, with a plastic film covered to keep moisture, and standing and maintenance are conducted for 7-50 d in the environment that the temperature is 5-65 DEG C, and the relative humidity is45-85%. Compared with an existing curing agent, the curing agent is high in strength and good in water resistance.

Description

technical field [0001] The invention relates to the field of raw soil curing, in particular to a magnesium oxychloride-based raw soil curing agent, a preparation method and application of the magnesium oxychloride-based raw soil curing agent. Background technique [0002] With the rapid development of the national economy, the construction industry has been greatly improved. There are more and more high-rise and super high-rise buildings, and the problem of disorderly stacking of earthwork after excavation of building foundations has arisen, which has brought about the possibility of earthwork being reused. The adverse consequences of low production efficiency, heavy environmental pollution, and waste of land resources. If this problem is not handled well, it will also threaten people's property and personal safety. Therefore, the problem of solidification and utilization of raw soil has become the focus of people's attention. [0003] Traditional raw soil curing agents mos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/32B28B1/52B28B11/24
CPCB28B1/52B28B1/525B28B11/245C04B28/32C04B2201/50C04B2103/65C04B16/0641C04B22/16C04B22/165C04B22/142C04B24/06
Inventor 尹泽和宋共楼古鸿
Owner 深圳市元亨环保产业有限公司
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