Reactive powder concrete as well as preparation and application thereof

A technology of active powder and concrete, applied in the field of concrete materials, can solve the problems of high cost, short life, poor texture, etc., achieve the effect of stable volume, solve high cracking risk, and reduce cracking risk

Inactive Publication Date: 2020-04-24
上海城建建设实业集团新型建筑材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention aims at the problems of poor texture, short service life, high cost and heavy weight of traditional building exterior wall materials, and uses an active powder concrete material with ultra-high durability and ultra-high mechanical properties to produce an artistic prefabricated building Decorative exterior walls, the reactive powder concrete has material properties of high strength, high compactness, high durability and high toughness compared with traditional concrete

Method used

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  • Reactive powder concrete as well as preparation and application thereof
  • Reactive powder concrete as well as preparation and application thereof
  • Reactive powder concrete as well as preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5

[0050] Examples 1-5: Active powder concrete under different component distribution ratios.

[0051] The used admixture of embodiment 1~5, by following weight portion proportioning:

[0052] Take 350 parts of mother liquor, 60 parts of self-compacting concrete admixture, 62 parts of triethanolamine, 6.5 parts of triethylenepropanolamine, 0.8 part of anhydrous sodium sulfate, 20 parts of urea, 8 parts of sodium thiosulfate, mix and stir evenly, and prepare Get additives.

[0053] Wherein, the preparation method of mother liquor is as follows:

[0054] First mix 400 parts of tpeg monomer, 300 parts of bottom water, 0.3 parts of ethylenetetramine and 5 parts of potassium persulfate, then add 36 parts of acrylic acid, 64 parts of water and 3.3 parts of potassium persulfate, and control the dropping time to 1.5 Add 0.3 parts of vitamin C, 1.2 parts of mercaptopropionic acid, and 97.5 parts of water, and control the dripping time for 2 hours; finally replenish 228 parts of water, r...

Embodiment 6～10

[0070] Examples 6-10: Active powder concrete under different component distribution ratios.

[0071] The used admixture of embodiment 6~10, by following weight portion proportioning:

[0072] Take 330 parts of mother liquor, 70 parts of self-compacting concrete admixture, 55 parts of triethanolamine, 8 parts of triethylenepropanolamine, 1 part of anhydrous sodium sulfate, 25 parts of urea, 10 parts of sodium thiosulfate, mix and stir evenly, and prepare admixture.

[0073] Wherein, the preparation method of mother liquor is identical with embodiment 1-5.

[0074] See Table 4 for raw material components, and see Table 5 for the properties of the prepared reactive powder concrete.

[0075] The active powder concrete of embodiment 6~10, preparation method is as follows:

[0076] 1) Mix water and admixture first to get mixed liquid;

[0077] 2) Then add cement, silica fume, and mineral powder in turn to mix evenly, then add sand and mix evenly;

[0078] 3) Finally, add steel ...

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Abstract

The invention discloses reactive powder concrete as well as a preparation and an application thereof. The reactive powder concrete comprises the following components: cement, silica fume, mineral powder, sand, an additive, steel fibers and water. The preparation method comprises the step of uniformly mixing the cement, the silica fume, the mineral powder, the sand, the additive, the steel fiber and the water to obtain the active powder concrete. The problems that the traditional building outer wall material is poor in texture, short in service life, high in manufacturing cost, thick and heavyare solved. By using the reactive powder concrete material with ultrahigh durability and ultrahigh mechanical property, the fabricated architectural decoration outer wall with the artistic effect is manufactured, and compared with traditional concrete, the reactive powder concrete has the material characteristics of high strength, high compactness, high durability and high toughness.

Description

technical field [0001] The invention relates to the technical field of concrete materials in building materials, in particular to an active powder concrete with high durability, high strength, high compactness and high toughness and its preparation and application. Background technique [0002] In recent years, with the rapid development of the prefabricated construction industry, building materials are also changing and developing intensively. While building materials bring building functions, visual effects are gradually reflected, especially building exterior walls. The beauty, texture and color of the material give people the most direct artistic effect. [0003] Reactive powder concrete is a high-strength, high-performance concrete whose basic components include cement, mineral admixtures, quartz sand, steel fibers, superplasticizers and water. The basic preparation principle is: the preparation is based on the maximum density theoretical model, adopts the optimal part...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B40/02
CPCC04B28/04C04B40/024C04B2111/00146C04B2201/52C04B18/146C04B18/141C04B14/06C04B14/48C04B2103/302C04B24/122C04B22/147C04B24/126C04B22/14C04B24/2647
Inventor 王华炯吴群翁聪厉王秋常钰沈春锋陈凯张士玉
Owner 上海城建建设实业集团新型建筑材料有限公司
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