Modified alkali-resistant glass fiber reinforced concrete and preparation method thereof

An alkali-resistant glass fiber and reinforced concrete technology, applied in the field of building materials, can solve problems such as poor mechanical properties and poor impermeability, and achieve the effects of enriching porosity and roughness, avoiding cracking, and reducing pore channels

Inactive Publication Date: 2018-01-16
郦璋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem mainly solved by the present invention is: Aiming at the problems of poor impermeability and mechanical properties of traditional glass fiber reinforced concrete, a modified alkali-resistant glass fiber reinforced concrete and its preparation method are provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0024] Add peach gum and water to the beaker at a mass ratio of 1:100, stir and mix with a glass rod for 30 minutes, let it stand for swelling for 4 hours, and then move the beaker into a magnetic stirrer with digital display speed measurement and constant temperature at a temperature of 40°C and a speed of 500r / min Under certain conditions, heat and stir to dissolve for 40 minutes to obtain the peach glue solution; add alkali-resistant glass fiber and peach glue solution into a beaker at a mass ratio of 1:100, stir, mix and soak for 2 hours at a rotating speed of 600r / min, and then filter. Obtain filter cake, and gained filter cake is washed 5 times with deionized water, must soak alkali-resistant glass fiber; Soak alkali-resistant glass fiber is placed in the muffle furnace, feed nitrogen into furnace with 60mL / min speed, in Under nitrogen protection, heat up to 550°C at a rate of 8°C / min. After carbonization for 3 hours, heat up to 1600°C at a rate of 15°C / min. After 4 hours...

example 2

[0026]Add peach gum and water to the beaker at a mass ratio of 1:100, stir and mix with a glass rod for 30 minutes, let it stand for swelling for 4 hours, and then move the beaker into a magnetic stirrer with digital display speed measurement and constant temperature at a temperature of 40°C and a speed of 500r / min Under certain conditions, heat and stir to dissolve for 40 minutes to obtain the peach glue solution; add alkali-resistant glass fiber and peach glue solution into a beaker at a mass ratio of 1:100, stir, mix and soak for 2 hours at a rotating speed of 600r / min, and then filter. Obtain filter cake, and gained filter cake is washed 5 times with deionized water, must soak alkali-resistant glass fiber; Soak alkali-resistant glass fiber is placed in the muffle furnace, feed nitrogen into furnace with 60mL / min speed, in Under nitrogen protection, heat up to 550°C at a rate of 8°C / min. After carbonization for 3 hours, heat up to 1600°C at a rate of 15°C / min. After 4 hours ...

example 3

[0028] Add alkali-resistant glass fiber and potassium permanganate solution with a mass fraction of 40% into a single-necked flask at a mass ratio of 1:100, stir and mix for 50 minutes at a rotating speed of 600r / min, and then filter to obtain a filter residue. The obtained filter residue was washed 5 times with deionized water, and then the filter residue was dried in a vacuum freeze-drying box for 2 hours to obtain the modified alkali-resistant glass fiber; in parts by weight, 100 parts of river sand, 40 parts of cement, and 20 parts of Fly ash, 20 parts of silica fume, 20 parts of slag, 80 parts of water, 30 parts of silane coupling agent, 20 parts of modified alkali-resistant glass fiber, first mix river sand, cement, fly ash, silica fume, slag, water Add the silane coupling agent into the mixer, stir and mix for 50min at the speed of 1200r / min, then add the modified alkali-resistant glass fiber to the mixer, and continue to stir and mix at the speed of 1200r / min After 50 ...

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Abstract

The invention discloses modified alkali-resistant glass fiber reinforced concrete and a preparation method thereof and belongs to the technical field of building materials. The preparation method comprises steps as follows: alkali-resistant glass fibers and a peach gum liquid are stirred, mixed, soaked and filtered, a filtered product is washed, and soaked alkali-resistant glass fibers are obtained; the soaked alkali-resistant glass fibers are placed in a muffle furnace, nitrogen is introduced into the muffle furnace, the temperature is increased step by step for carbonization, heating reaction is continued, cooling is performed, and pretreated alkali-resistant glass fibers are obtained; the pretreated alkali-resistant glass fibers and a potassium permanganate solution are subjected to a stirred and mixed reaction, a product is filtered, a filtered product is washed and dried, and modified alkali-resistant glass fibers are obtained; river sand, cement, fly ash, silica fume, slag, waterand a silane coupling agent are stirred and mixed, the modified alkali-resistant glass fibers are added for stirring and mixing, and the modified alkali-resistant glass fiber reinforced concrete is obtained. The modified alkali-resistant glass fiber reinforced concrete has excellent impervious performance and mechanical property.

Description

technical field [0001] The invention discloses a modified alkali-resistant glass fiber reinforced concrete and a preparation method thereof, belonging to the technical field of building materials. Background technique [0002] Glass fiber reinforced concrete (GRC for short) is a kind of fiber concrete composite material with alkali-resistant glass fiber as the reinforcing material and cement mortar as the matrix material. The material of the teacher's imagination. Glass fiber reinforced water concrete is one of the research directions of new building materials. After high-strength glass fiber is embedded in the cement matrix, it can effectively improve and improve the comprehensive performance of the cement matrix such as frost resistance and durability. [0003] At present, there are many types of glass fibers, and the dimensions have also developed from common chopped glass fibers and glass fiber mesh cloth to three-dimensional glass fiber spacer fabrics. When chopped gl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B14/44
Inventor 郜九宏殷小祥陈龙
Owner 郦璋
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