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A kind of active powder concrete and preparation method thereof

A technology of active powder and concrete, which is applied in the field of concrete, can solve the problems of low strength and poor heat insulation performance, and achieve the effect of improving heat insulation performance, increasing strength, improving strength and heat insulation performance

Active Publication Date: 2022-02-01
深圳市利建新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Among them, the traditional reactive powder concrete has problems such as poor thermal insulation performance. Although the foam structure made of reactive powder concrete can improve the thermal insulation performance, it has the problem of low strength.

Method used

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  • A kind of active powder concrete and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] This embodiment provides a kind of active powder concrete, and its preparation method comprises the following steps:

[0023] S1. Weigh 40kg of cement, 5kg of fly ash, 5kg of modified glass fiber, 1kg of antimony tin oxide, 0.1kg of water reducer, and 15kg of water, and set aside; wherein, the cement is commercially available P.O 42.5R ordinary Portland cement; The water agent is an equal mass ratio mixture of commercially available polycarboxylate water reducer and naphthalenesulfonate water reducer.

[0024] In addition, nano-inorganic materials are electrostatically adsorbed on the surface of the modified glass fiber, and the modification method includes the following steps:

[0025] (1) Nano silicon dioxide with an average particle size of 10 nm and nano titanium dioxide with an average particle size of 10 nm are mixed according to a mass ratio of 4:6 to obtain a nano inorganic material.

[0026] (2) Mix the nano-inorganic material and the booster to obtain a modif...

Embodiment 2

[0030] This embodiment provides a kind of active powder concrete, and its preparation method comprises the following steps:

[0031] S1. Weigh 60kg of cement, 15kg of fly ash, 10kg of modified glass fiber, 5kg of antimony tin oxide, 2kg of water reducing agent, and 5kg of water, and set aside; wherein, the cement is commercially available P.O 42.5R ordinary Portland cement; The agent is a commercially available polycarboxylate water reducer.

[0032] In addition, nano-inorganic materials are electrostatically adsorbed on the surface of the modified glass fiber, and the modification method includes the following steps:

[0033] (1) Nano silicon dioxide with an average particle size of 100 nm and nano titanium dioxide with an average particle size of 100 nm are mixed according to a mass ratio of 6:4 to obtain a nano inorganic material.

[0034] (2) Mixing the nano-inorganic material and the charging agent to obtain a modified powder; wherein, the weight of the charging agent is...

Embodiment 3

[0038] This embodiment provides a kind of active powder concrete, and its preparation method comprises the following steps:

[0039] S1. Weigh 42kg of cement, 7kg of fly ash, 6kg of modified glass fiber, 2kg of antimony tin oxide, 0.2kg of water reducer, and 6kg of water, and set aside; wherein, the cement is commercially available P.O 42.5R ordinary Portland cement; The water agent is a commercially available naphthalenesulfonate water reducer.

[0040] In addition, nano-inorganic materials are electrostatically adsorbed on the surface of the modified glass fiber, and the modification method includes the following steps:

[0041] (1) Nano silicon dioxide with an average particle size of 20 nm and nano titanium dioxide with an average particle size of 30 nm are mixed according to a mass ratio of 4.5:5.5 to obtain a nano inorganic material.

[0042] (2) Mix the nano-inorganic material and the booster to obtain a modified powder; wherein, the mass of the booster is 0.2% of the ...

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Abstract

The invention is applicable to the technical field of concrete, and provides an active powder concrete and a preparation method thereof. The active powder concrete includes the following components: cement, fly ash, modified glass fiber, antimony tin oxide, water reducing agent, and water; The surface of the modified glass fiber is electrostatically adsorbed with nanometer inorganic materials. In the embodiments of the present invention, by adding modified glass fiber and antimony tin oxide, synergistic effects can be achieved, thereby significantly improving the strength and heat insulation performance of the active powder concrete. Among them, antimony tin oxide can reduce light transmission and heat transfer effects, and can significantly improve the thermal insulation performance of reactive powder concrete under the compounding effect of modified glass fibers. In addition, in the embodiment of the present invention, the nano-inorganic material is adsorbed on the surface of the glass fiber by electrostatic adsorption, which can improve the dispersion of the glass fiber in the concrete system, and can significantly improve the strength and other properties of the active powder concrete.

Description

technical field [0001] The invention belongs to the technical field of concrete, and in particular relates to an active powder concrete and a preparation method thereof. Background technique [0002] Reactive powder concrete is a building material with excellent mechanical properties and durability after high-strength and high-performance concrete. [0003] Among them, the traditional reactive powder concrete has problems such as poor thermal insulation performance. Although the thermal insulation performance can be improved by coagulating the reactive powder into a foam structure, it has the problem of low strength. Therefore, there is an urgent need to study a reactive powder concrete with high strength and good thermal insulation performance. Contents of the invention [0004] The purpose of the embodiments of the present invention is to provide a reactive powder concrete, aiming to solve the problems raised in the background technology. [0005] The embodiment of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/32C04B2201/52C04B14/42C04B18/08C04B22/06C04B2103/302
Inventor 胡杰梁水明
Owner 深圳市利建新材料有限公司
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