Glass fiber reinforced concrete and preparation method thereof

A technology for reinforcing concrete and glass fiber, applied in the field of building materials, can solve problems such as cracking, and achieve the effects of improving crack resistance and impermeability, increasing stiffness, and enhancing efficiency.

Active Publication Date: 2021-06-15
GUANGDONG BOZHILIN ROBOT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the enhancement effects of both are effective, in practical applications, there will be a small amount of cracking, and the mechanical properties of GRC must be further improved. In addition, issues such as the durability of GRC products also need to be paid attention to and solved.

Method used

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  • Glass fiber reinforced concrete and preparation method thereof
  • Glass fiber reinforced concrete and preparation method thereof
  • Glass fiber reinforced concrete and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0059] A kind of preparation method of above-mentioned glass fiber reinforced concrete, comprises the following steps:

[0060] mixing the cement, quartz sand, silane-based water repellent and acryl ether copolymer, and then adding the alkali-resistant glass fiber chopped strands to prepare cement mortar;

[0061] After pouring a part of the cement mortar, place the three-dimensional fabric, apply prestress to the three-dimensional fabric, and then continue pouring the remaining part of the cement mortar for curing.

[0062] Prestressing is applied to the three-dimensional fabric, and the pre-tensioning process is used to pre-stretch the three-dimensional fabric so that the fibers are stressed and compressed before being loaded, which can delay the development of cracks, increase the stiffness of the component, and improve the The utilization efficiency of materials facilitates the follow-up to better play the role of high-performance fabrics, improves the crack resistance and...

Embodiment 1

[0078] This embodiment provides a glass fiber reinforced concrete and a preparation method thereof, the steps are as follows:

[0079] 1) Take the following raw materials in parts by weight:

[0080]

[0081] 2) Preparation of glass fiber reinforced concrete

[0082] After installing the bottom film, get a template with length*width*height of 1200mm*1200mm*10mm, and apply the release agent.

[0083] mixing the cement, quartz sand, silane-based water-repellent and acryl ether copolymer, and then adding the alkali-resistant glass fiber chopped strands to prepare cement mortar.

[0084] In the formwork, a part of the above-mentioned cement mortar was poured to a height of 3 mm, and vibrated with a micro vibrator.

[0085] Place the 3D fabric provided by Changzhou Bolong 3D Composite Material Co., Ltd., such as figure 1 As shown, the first warp yarn of the first fabric layer of the three-dimensional fabric and the second warp yarn of the second fabric layer are respectively ...

Embodiment 2

[0089] This embodiment provides a glass fiber reinforced concrete and a preparation method thereof, which are basically the same as in Embodiment 1, the main difference being that the method of applying prestress is different, and the steps are as follows:

[0090] 1) Take the following raw materials in parts by weight:

[0091]

[0092] 2) Preparation of glass fiber reinforced concrete

[0093] After installing the bottom film, get a template with length*width*height of 1200mm*1200mm*10mm, and apply the release agent.

[0094] mixing the cement, quartz sand, silane-based water-repellent and acryl ether copolymer, and then adding the alkali-resistant glass fiber chopped strands to prepare cement mortar.

[0095] In the template, first pour a part of the above cement mortar to a height of 3mm, and vibrate with a micro vibrator.

[0096] Place the 3D fabric provided by Changzhou Bolong 3D Composite Material Co., Ltd., such as figure 2 As shown, the first weft yarn of the ...

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Abstract

The invention relates to the technical field of building materials, in particular to glass fiber reinforced concrete and a preparation method thereof. The glass fiber reinforced concrete comprises the following raw materials in parts by weight: 40 to 70 parts of cement, 10 to 20 parts of alkali-resistant glass fiber chopped yarns, 10 to 25 parts of quartz sand, 5 to 15 parts of a silane-based water repellent, 3 to 8 parts of an allyl ether copolymer and 1 to 2 parts of a three-dimensional fabric. The three-dimensional fabric is added, so the reinforcing effect in the direction of thickness is increased, bending resistance can be exerted in all directions, cracks caused by stress concentration are avoided, and the mechanical property and durability of the concrete are further improved.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to glass fiber reinforced concrete and a preparation method thereof. Background technique [0002] Glass fiber reinforced concrete (GRC for short) is a cement-based composite material formed by embedding alkali-resistant glass fibers into cement-based materials. GRC products are widely used in classical buildings, building curtain walls, and restoration of historical sites. [0003] At present, there are many types of glass fibers, and the dimensions have also developed from common chopped glass fibers to glass fiber mesh cloth (glass fiber mesh). When chopped glass fiber is used as reinforcement material, the glass fiber is uniformly dispersed in the cement base material, which makes the overall structure of the product better, the surface strength is high, and the crack resistance effect is obvious. Using glass fiber mesh as reinforcement material has higher reinforcem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06C04B24/26C04B24/42C04B103/65C04B111/34C04B111/27C04B14/42
CPCC04B28/065C04B24/2694C04B40/0046C04B2111/00379C04B2103/65C04B2111/343C04B2111/27C04B2201/50C04B2201/52C04B14/06C04B14/42C04B20/0048C04B24/42C04B24/085
Inventor 戎天瑛唐振中王洪松
Owner GUANGDONG BOZHILIN ROBOT CO LTD
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