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Method for preparing non-shrinkage grouting material

A grouting material and non-shrinkage technology, which is applied in the field of preparation of non-shrinking grouting material, can solve the problems of poor strength, easy shrinkage, easy cracking, etc., and achieve the effect of improving later strength, avoiding cracking, and improving strength

Inactive Publication Date: 2017-09-01
周益铭
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main technical problem to be solved by the present invention is to provide a preparation method of non-shrinkage grouting materials in view of the defects that the existing non-shrinkage grouting materials have poor strength in the later stage, and are prone to shrinkage and cracking during use.

Method used

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  • Method for preparing non-shrinkage grouting material

Examples

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Effect test

example 1

[0020] First, weigh 1kg of rubber grass root and wash it with water for 3 times, put the washed rubber grass root in a tissue crushing machine and pulverize it for 40 minutes to obtain rubber grass root fragments, take 600g of rubber grass root fragments and add them to a beaker, then add 100g of refinery waste water to the beaker Treat the activated sludge in the secondary sedimentation tank, stir and mix for 1min, then move it to a dark place for fermentation for 5 days. After the fermentation is completed, the fermentation product is obtained. At the same time, weigh 1kg of quartz sand and 600g of metakaolin, add them to the pulverizer, and pass through an 80-mesh sieve. , to obtain mixed powder, take 1kg of mixed powder and put it into the muffle furnace, control the temperature of the muffle furnace to 900°C, keep the temperature for calcination for 1h, and after the calcination is completed, cool the calcined product to room temperature with the furnace to obtain the activ...

example 2

[0022] First weigh 1kg of rubber grass root and wash it with water for 4 times, put the washed rubber grass root in a tissue crushing machine and pulverize it for 45 minutes to obtain rubber grass root fragments, take 700g of rubber grass root fragments and add them to a beaker, then add 150g of refinery waste water to the beaker Treat the activated sludge in the secondary sedimentation tank, stir and mix for 2 minutes, then transfer to a dark place for fermentation treatment for 7 days. After the fermentation is completed, the fermentation product is obtained. At the same time, weigh 1kg of quartz sand and 700g of metakaolin, add them to the pulverizer, and pass through a 90-mesh sieve. , to obtain mixed powder, take 1kg of mixed powder and add it to the muffle furnace, control the temperature of the muffle furnace to 950°C, keep the heat for calcination for 1h, and after the calcination is completed, cool the calcined product to room temperature with the furnace to obtain the ...

example 3

[0024]First, weigh 2kg of rubber grass root and wash it with water for 5 times, put the cleaned rubber grass root in a tissue crushing machine and pulverize it for 50 minutes to obtain rubber grass root fragments, take 800g of rubber grass root fragments and add them to a beaker, then add 200g of refinery wastewater to the beaker Treat the activated sludge in the secondary sedimentation tank, stir and mix for 3 minutes, then transfer to a dark place to ferment for 8 days. After the fermentation is completed, the fermentation product is obtained. At the same time, weigh 2kg of quartz sand and 800g of metakaolin, add them to the pulverizer, and pass through a 100-mesh sieve. , to obtain mixed powder, take 2kg of mixed powder and put it into a muffle furnace, control the temperature of the muffle furnace to 1000°C, keep it for calcination for 2 hours, and after the calcination is completed, cool the calcined product to room temperature with the furnace to obtain an activated powder...

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Abstract

The invention discloses a method for preparing a non-shrinkage grouting material, and belongs to the technical field of concrete preparation. According to the method, mixed fermentation is carried out on taraxacum kok-saghyz rodin roots and activated sludge, and the mixed fermentation product is mixed with activated quartz sand and metakaolin, earthworms are fed with the mixture, under the action of the earthworms, due to the elastic components of composite rubber of the quartz sand and the metakaolin, a grouting material is not cracked or shrunk after being hardened, furthermore calcium aluminate powder is wrapped with chitosan, then calcium aluminate can be slowly released, aluminum oxide and quartz in the calcium aluminate can generate a net-shaped gel polymer when being hardened, and then later strength of the grouting material is improved; in addition, calcium aluminate reacts with cement to generate ettringite, then the grouting material is densified, and the strength of the grouting material is improved; and the non-shrinkage grouting material prepared by using the method has the characteristics of being high in early strength, rapid in later strength development, large in effective holding surface with a substrate, and high in caking property, is free of phenomena such as shrinkage or cracking after application, and has relatively good use prospects.

Description

technical field [0001] The invention discloses a preparation method of a non-shrinkage grouting material, which belongs to the technical field of concrete preparation. Background technique [0002] With the needs of construction development, the requirements for concrete technology and dosage are getting higher and higher. During the use of concrete, its shrinkage and cracking rate must be strictly controlled to prevent potential safety hazards. Buildings or roads will still be cracked and damaged, and they need to be repaired at this time. The non-shrinkable grouting material is the substance that was born. It is mainly used for secondary grouting of equipment foundations, reinforcement of beams, slabs and columns, and road repair projects. [0003] The currently used non-shrinkage grouting materials include CGM series non-shrinking grouting materials, which use high-strength materials as aggregates, cement as a binder, and then mixed with admixtures. It not only has a larg...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B20/02C04B20/04C04B20/10C04B111/70C04B22/08C04B14/06C04B14/10
CPCC04B28/04C04B20/04C04B20/1048C04B2111/70C04B2201/52C04B22/0013C04B24/383C04B24/18C04B24/42C04B22/0093C04B14/06C04B14/106C04B20/02
Inventor 周益铭王维孙冬
Owner 周益铭
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