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Building material composition containing aeolian sand and preparation method of building material composition

A technology for building materials and aeolian sand, which is applied in the field of building material compositions containing aeolian sand and its preparation, and can solve the problem that Brandt cement cannot support qualified strength, aeolian sand is not suitable for building aggregates, and high doping content and other problems, to achieve the effect of reducing production cost and preparation difficulty, easy production and deployment, and high doping amount

Active Publication Date: 2018-08-03
中科镁基(北京)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the shortcomings of the existing aeolian sand that is not suitable for building aggregates, and the use of Brandt cement cannot support products with qualified strength, and provide a high-doping, low-cost aeolian sand resource utilization method

Method used

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  • Building material composition containing aeolian sand and preparation method of building material composition
  • Building material composition containing aeolian sand and preparation method of building material composition
  • Building material composition containing aeolian sand and preparation method of building material composition

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preparation example Construction

[0033] A preparation method of a building material composition containing aeolian sand, comprising the following steps:

[0034] (1) Magnesium chloride brine preparation: the magnesium chloride is configured into an aqueous solution with a concentration of 20% to 30%, an antifoaming agent is added, and fully stirred until the magnesium chloride solution foam is eliminated and becomes a clear solution;

[0035] (2) Preparation of composite modifier solution: the following composite modifier raw materials are proportioned by weight: phosphoric acid and / or phosphate 5~40%, sulfate 10~80% and oxalic acid and / or sodium oxalate 0~ 50% soluble in water;

[0036] (3) Preparation of modified magnesia gel material: add light-burned magnesia powder to the magnesium chloride aqueous solution prepared in step (1), stir for 2 to 5 minutes, and then add the composite modifier prepared in step (2) In the solution, continue to stir for 3 to 5 minutes;

[0037](4) Aggregate mixing: adding aeo...

Embodiment 1

[0043] Such as figure 1 As shown in the process, this embodiment provides a method for preparing a building material composition containing aeolian sand, comprising the following steps:

[0044] (1) Magnesium chloride brine preparation: the magnesium chloride is configured into an aqueous solution with a concentration of 26%, and 1.5 g of emulsified silicone oil defoamer is added, and fully stirred until the foam of the magnesium chloride solution is eliminated and becomes a clear solution;

[0045] (2) Preparation of composite modifier solution: dissolve 1.95g of phosphoric acid and 2.9g of ferrous sulfate in 35.15g of water, stir evenly, and configure 40g of composite modifier solution;

[0046] (3) Preparation of modified magnesia gel material: add 195g of light-burned magnesia to 156g of the magnesium chloride solution prepared in step (1), stir for 5min, then add the composite modifier solution configured in step (2) 40g, continue to stir for 3 minutes to fully mix the m...

Embodiment 2

[0053] This embodiment provides a method for preparing a building material composition containing aeolian sand, comprising the following steps:

[0054] (1) Magnesium chloride brine preparation: the magnesium chloride is configured into an aqueous solution with a concentration of 20%, and 4.5 g of high-carbon alcohol fatty acid complex defoamer is added, fully stirred until the magnesium chloride solution foam is eliminated and becomes a clear solution;

[0055] (2) Preparation of composite modifier solution: dissolve 2g of phosphoric acid, 2g of trisodium phosphate and 2g of oxalic acid in 34g of water, stir evenly, and configure 40g of composite modifier solution;

[0056] (3) Preparation of modified magnesia gel material: add 195g of light-burned magnesia to 284g of the magnesium chloride solution prepared in step (1), stir for 5min, then add the composite modifier solution configured in step (2) 40g, continue to stir for 3 minutes to fully mix the materials;

[0057] (4) ...

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Abstract

The invention discloses building material composition containing aeolian sand. Raw material powder of a building material comprises components in percentage by mass as follows: 45%-85.5% of aeolian sand, 0-8.5% of fly ash, 0-4% of silica fume, 9.5%-45% of light-burned magnesia, 2.7%-7.1% of magnesium chloride, 0.05%-0.5% of a defoamer, 0-1.5% of a water reducer and 0.15%-4.7% of a composite modifier; the building material is prepared from 100 parts by weight of the raw material powder of the building material and 10-21 parts by weight of water. The aeolian sand doping amount is large, the building material is high in strength and good in toughness, production and blending are easy, special equipment is not needed, the material needs no pretreatment, various forms of building materials areproduced, and production cost and preparation difficulty of the building material containing the aeolian sand are reduced.

Description

technical field [0001] The invention relates to the field of building material preparation, in particular to a building material composition containing aeolian sand and a preparation method thereof. Background technique [0002] Sand, also known as concrete fine aggregate, is a necessary material for construction projects. It is a traditional way in my country to salvage river sand for building aggregate production. River sand often contains a lot of mud and needs to be washed and dried before being applied to dry powder mortar. Today, as my country's economy continues to take off, the demand for sand and gravel aggregates is naturally increasing. River sand can no longer meet the construction requirements of my country's rapid development. Therefore, machine-made sand is the most popular source of sand and gravel today. Machine-made sand is the aggregate produced through the cooperation of centralized crushing equipment. For example, through the joint operation of jaw cr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/32
CPCC04B28/32C04B2201/50C04B22/165C04B22/149C04B14/06C04B24/42C04B22/06C04B24/085C04B2103/302C04B18/08
Inventor 张志远
Owner 中科镁基(北京)科技有限公司
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