Fair-faced concrete and preparation method thereof

A technology of fair-faced concrete and water-reducing agent, which is applied in the field of building materials and can solve problems such as pockmarks and honeycombs, veneer cracks, cold joints, etc., achieve less cement content, improve bonding strength, increase tensile strength and tensile strength The effect of bond strength

Pending Publication Date: 2019-11-22
江西蓝宝新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the reduction of cement and other cementitious materials often leads to defects such as cracking, cold joints, pan-alkali, rust spots, pockmarks, and honeycomb in the poured finish, which must be repaired and painted later.

Method used

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  • Fair-faced concrete and preparation method thereof
  • Fair-faced concrete and preparation method thereof
  • Fair-faced concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4

[0057] Examples 1 to 4 are fair-faced concrete, and their specific components are shown in Table 1, wherein the unit of each component is g.

[0058] Table 1

[0059]

[0060]

[0061] Wherein, the admixture used in embodiment 1~4 is identical, and admixture comprises by weight percentage: polycarboxylate superplasticizer 88%, defoamer 2.5%, retarder 8%, silane-based water repellent 1% , Cellulase water retention agent 0.5%.

Embodiment 5

[0063] This embodiment is a kind of fair-faced concrete. Compared with Embodiment 2, the difference is that the admixtures used are different, wherein, in this embodiment, the admixtures include: 90% polycarboxylate water reducer, dispersant Foam agent 1.4%, retarder 8%, silane-based water-repellent agent 0.5%, cellulase water-retaining agent 0.1%.

Embodiment 6

[0065] This embodiment is a kind of fair-faced concrete. Compared with Embodiment 2, the difference is that the admixtures used are different, wherein, in this embodiment, the admixtures include: polycarboxylate water reducer 70%, dispersant Foam agent 5%, retarder 15%, silane-based water-repellent agent 5%, cellulase water retention agent 5%.

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Abstract

The invention provides fair-faced concrete and a preparation method thereof and relates to the field of building materials. The fair-faced concrete comprises the following raw materials in parts by weight: 370-460 parts of cement, 50-100 parts of fly ash, 1250-1640 parts of aggregate, 20-30 parts of diatomite, 3-5 parts of cellulose, 5-10 parts of fiber, 5-10 parts of rubber powder, 10-15 parts ofan expanding agent and 10-15 parts of an additive. According to the invention, the technical problem of lack of fair-faced concrete with good fluidity and high appearance quality after pouring in thedomestic market can be solved, and the purpose of improving the effect of the fair-faced concrete after pouring is achieved.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a fair-faced concrete and a preparation method thereof. Background technique [0002] With the rapid development of the economy, the improvement of living standards, and the changes in people's aesthetic concepts, there are increasingly higher requirements for the ornamental, functional, durable, diverse, and convenient architectural decoration. Fair-faced concrete, also known as decorative concrete, gets its name because of its great decorative effect. It belongs to one-time pouring molding without any external decoration. It directly adopts the natural surface effect of cast-in-place concrete as the finish. protective agent. [0003] However, domestic fair-faced concrete is difficult to meet the high standard requirements of one-time molding of fair-faced concrete no matter from the material itself or the construction technology. In order to meet the high standard requireme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B28/06
CPCC04B28/04C04B28/06
Inventor 江小平
Owner 江西蓝宝新材料有限公司
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