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High-strength thermal insulation concrete and preparation method thereof

A heat-preserving concrete and high-strength technology, applied in the field of building materials, can solve problems affecting performance, low foam concrete strength, high water absorption, etc., and achieve the effects of prolonging service life, improving weather resistance, and improving waterproof performance

Inactive Publication Date: 2020-11-13
梁剑
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problems of the existing foam concrete with low strength and excessive water absorption which affect its performance, the present invention provides a high-strength thermal insulation concrete and its preparation method, which makes the foam concrete high in strength, low in water absorption and good in thermal insulation

Method used

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  • High-strength thermal insulation concrete and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0032] A high-strength thermal insulation concrete, characterized in that, in terms of mass percentage, its formulation raw materials are as follows: 30% of ordinary portland cement, 20% of titanium waste residue, 10% of red gypsum, 3% of polymer emulsion, foaming agent 1.5%, calcium stearate 1%, lithium chloride 2%, superplasticizer 0.6%, polypropylene fiber 0.1%, and the balance is water.

[0033] The polymer emulsion is formed by polymerizing methacrylic acid sulfobetaine monomer, vinylidene fluoride, deionized water and co-solvent under the action of an initiator.

[0034] The preparation method of the polymer emulsion comprises the following steps: stirring the sulfobetaine monomer of methacrylic acid, vinylidene fluoride, deionized water and a cosolvent, and then raising the temperature to 70° C. to form a mixed solution, and then adding an initiator to the mixed solution. agent, reacted at 70°C under nitrogen for 12 hours, and stopped the reaction by blowing in air, and...

Embodiment 2

[0043]A high-strength thermal insulation concrete, characterized in that, in terms of mass percentage, its formulation raw materials are as follows: 35% of ordinary Portland cement, 23% of titanium waste residue, 13% of red gypsum, 6% of polymer emulsion, foaming agent 3%, calcium stearate 1.5%, lithium chloride 2.5%, superplasticizer 0.7%, polypropylene fiber 0.2%, and the balance is water.

[0044] The polymer emulsion is formed by polymerizing methacrylic acid sulfobetaine monomer, vinylidene fluoride, deionized water and co-solvent under the action of an initiator.

[0045] The preparation method of the polymer emulsion comprises the following steps: Stirring methacrylic acid sulfobetaine monomer, vinylidene fluoride, deionized water and co-solvent, then raising the temperature to 75°C to form a mixed solution, and then adding initiator agent, reacted in helium at 75°C for 10 hours, passed air to stop the reaction, and cooled to room temperature to obtain a polymer emulsio...

Embodiment 3

[0054] A high-strength thermal insulation concrete, characterized in that, in terms of mass percentage, the composition of its formula raw materials is as follows: 40% of ordinary portland cement, 25% of titanium waste residue, 15% of red gypsum, 8% of polymer emulsion, foaming agent 5%, calcium stearate 2%, lithium chloride 3%, superplasticizer 0.8%, polypropylene fiber 0.3%, and the balance is water.

[0055] The polymer emulsion is formed by polymerizing methacrylic acid sulfobetaine monomer, vinylidene fluoride, deionized water and co-solvent under the action of an initiator.

[0056] The preparation method of the polymer emulsion comprises the following steps: stirring the sulfobetaine monomer of methacrylic acid, vinylidene fluoride, deionized water and a cosolvent, and then raising the temperature to 80° C. to form a mixed solution, and then adding an initiator to the mixed solution. agent, reacted in neon gas at 80°C for 8 hours, passed air to stop the reaction, and co...

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Abstract

The invention belongs to the field of building materials, and relates to a high-strength thermal insulation concrete and a preparation method thereof. The concrete is characterized by comprising the following raw materials in percentage by weight: 30-40% of ordinary Portland cement, 20-25% of titanium waste residues, 10-15% of red gypsum, 3-8% of a polymer emulsion, 1.5-5% of a foaming agent, 1-2%of calcium stearate, 2-3% of lithium chloride, 0.6-0.8% of a polycarboxylate water reducer, 0.1-0.3% of polypropylene fibers and 10-15% of water, wherein the polymer emulsion is formed by polymerizing a methacrylic acid sulfobetaine monomer, vinyl acetate, deionized water and a cosolvent under the action of an initiator. The prepared high-strength thermal insulation concrete is low in heat conductivity coefficient, high in strength, low in water absorption rate and good in thermal insulation effect, is an ideal building material and can be further popularized in related industries of buildings.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a high-strength thermal insulation concrete and a preparation method thereof. Background technique [0002] Foamed concrete, also known as foamed concrete, is to fully foam the foaming agent mechanically through the foaming system of the foaming machine, and evenly mix the foam with the cement slurry, and then carry out cast-in-place construction or mold through the pumping system of the foaming machine Forming, a new type of lightweight thermal insulation material with a large number of closed pores formed by natural curing. Foamed concrete is a lightweight, heat-insulating, heat-insulating, refractory, sound-insulating and frost-resistant concrete material, and it is being used more and more widely in the field of construction. [0003] Foamed concrete in the prior art is composed of cement, sand (also known as aggregate or aggregate), admixtures, admixtures, water,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B38/02C04B38/10C04B24/16C08F220/36C08F218/08C04B111/40
CPCB28C5/388B28C5/402C04B24/163C04B28/14C04B38/02C04B38/10C04B2111/40C04B2201/20C04B2201/32C04B2201/50C08F218/08C08F220/36C04B7/02C04B18/141C04B24/085C04B22/124C04B2103/302C04B16/0633
Inventor 不公告发明人
Owner 梁剑
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