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Geopolymer/ waste rubber powder composite material and preparation method thereof

A technology of geopolymer and waste rubber powder, which is applied in the field of material engineering, can solve problems such as the small amount of digestion and utilization, the complicated construction process of waste rubber modified asphalt, and the impact on the application of rubber particles in cement concrete, so as to achieve stable performance and improve the use of performance effect

Active Publication Date: 2014-06-25
GUANGXI TRANSPORTATION SCI & TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] As mentioned in the above patent, waste rubber at home and abroad has certain applications in asphalt concrete pavement, but the construction process of waste rubber modified asphalt is complicated, and the amount of digestion and utilization is relatively small
Traditional rubber powder concrete materials are semi-rigid materials. The research on the road performance of rubber particles mixed with hydraulic concrete has increased the utilization of waste rubber powder, but the interface bonding performance between rubber particles and cement substrates needs to be improved. It affects the application of rubber particle cement concrete in road engineering

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The preparation method of above-mentioned geopolymer / waste rubber powder composite material, the processing step of this method is

[0031] (1) Preparation of modified water glass solution: Weigh an appropriate amount of industrial sodium water glass, water and NaOH, stir and dissolve to prepare a modified water glass solution with a modulus of 1.6.

[0032] (2) Preparation of waste rubber powder / modified water glass mixed slurry: choose waste rubber powder and modified water glass prepared in step (1) after mechanical processing and crushing and add to colloid mill, and finally reach a particle size of 50 mesh Solution, according to the weight of 50 kg of modified water glass solution and 50 kg of waste rubber powder, then place the ground colloid in a high-speed disperser for 6 minutes of high-speed dispersion and mix evenly to obtain waste rubber powder / modified water glass mixed slurry.

[0033] (3) Preparation of geopolymer / waste rubber powder composite material: w...

Embodiment 2

[0037]The preparation method of above-mentioned geopolymer / waste rubber powder composite material, the processing step of this method is

[0038] (1) Preparation of modified water glass solution: Weigh an appropriate amount of industrial sodium water glass, water and NaOH, stir and dissolve to prepare a modified water glass solution with a modulus of 1.6.

[0039] (2) Preparation of waste rubber powder / modified water glass mixed slurry: select the waste rubber powder and the modified water glass prepared in step (1) after mechanical processing and crushing and add it to the colloid mill, and finally achieve a particle size of 40 mesh. Solution, according to the weight of 90 kg of modified water glass solution and 10 kg of waste rubber powder, then place the ground colloid in a high-speed disperser for 10 minutes of high-speed dispersion and mix evenly to obtain a waste rubber powder / modified water glass mixed slurry.

[0040] (3) Preparation of geopolymer / waste rubber powder c...

Embodiment 3

[0044] The preparation method of above-mentioned geopolymer / waste rubber powder composite material, the processing step of this method is

[0045] (1) Preparation of modified water glass solution: Weigh an appropriate amount of industrial sodium water glass, water and NaOH, stir and dissolve to prepare a modified water glass solution with a modulus of 1.6.

[0046] (2) Preparation of waste rubber powder / modified water glass mixed slurry: select the waste rubber powder and the modified water glass prepared in step (1) after mechanical processing and crushing and add it to the colloid mill, and finally achieve a particle size of 60 mesh. Solution, according to the weight of 95 kg of modified water glass solution and 5 kg of waste rubber powder, then place the ground colloid in a high-speed disperser for 6 minutes of high-speed dispersion and mix evenly to obtain waste rubber powder / modified water glass mixed slurry.

[0047] (3) Preparation of geopolymer / waste rubber powder comp...

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Abstract

The invention discloses a geopolymer / waste rubber powder composite material and a preparation method thereof. The geopolymer / waste rubber powder composite material comprises the following raw material components in parts by weight: 35-70 parts of geopolymer alkali activated material and 30-65 parts of waste rubber powder / modified water glass mixed slurry; the waste rubber powder / modified water glass mixed slurry is prepared from the following components in parts by mass: 5-50 parts of waste rubber powder and 50-95 parts of modified water glass. The prepared composite material adopts cast molding; and after the composite material is cured, the compressive strength is between 15MPa and 96MPa, and the elasticity modulus is between 92MPa and 400MPa. The composite material disclosed by the invention not only solves the problem of utilization of waste rubber, but also solves the technical problems of high brittleness and insufficient toughness of geopolymer materials. The composite material can be applied in the engineering fields of buildings, traffic, military affairs and the like.

Description

technical field [0001] The invention belongs to the technical field of material engineering, and relates to a geopolymer / waste rubber powder composite material and a preparation method thereof. Background technique [0002] Geopolymer (Geopolymer) is produced by mixing aluminosilicate minerals containing amorphous SiO2 and Al2O3 with alkali solution, alkaline salt solution or phosphoric acid and phosphate solution under strong alkali or strong acid conditions, and undergoes polycondensation reaction. Amorphous three-dimensional network gel composed of silicon-oxygen tetrahedron, aluminum-oxygen tetrahedron or phosphorus-oxygen tetrahedron. The application of geopolymer materials can be traced back to ancient times, that is, limestone or dolomite with salt lake composition Na 2 CO 3 , plant ash component K 2 CO 3 And the mixture of silica, after adding water and mixing, it will produce strong alkaline components, which will react with other components to form mineral pol...

Claims

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Application Information

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IPC IPC(8): C04B28/02C04B18/22
CPCY02W30/91
Inventor 邓家喜谭华崔学民刘乐平匡丕桩
Owner GUANGXI TRANSPORTATION SCI & TECH GRP CO LTD
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