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Method for preparing self-repairing concrete from egg shells

An eggshell, self-repairing technology, applied in building maintenance, construction, building construction, etc., can solve the problem of insufficient repair of internal gaps, depths and gaps, and achieve excellent self-repairing effects.

Inactive Publication Date: 2019-01-25
王敏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the current common self-healing concrete that can only be repaired in situ at the position containing the repairing agent, and for the defects that the internal gaps and deep gaps without repairing agent cannot be fully repaired, a method for preparing self-healing concrete using egg shells is provided.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0023] Weigh the egg shells, rinse them with deionized water for 3 times, then put the washed egg shells into an oven, and dry them at 105°C for 30 minutes to obtain dried egg shells, put the dried egg shells into a mortar, grind and crush them After 1 hour, pass through a 200-mesh sieve to obtain sieved egg shell powder for later use; weigh peach gum and put it into a beaker, heat up to 70°C, stir with a glass rod while heating until the peach gum is completely melted, and then add to the beaker Melt urea with 30% peach gum mass, and continue to stir and mix with a glass rod for 10 minutes; after stirring and mixing, put the beaker in the refrigerator, let it stand for solidification at 4°C for 1 hour, take out the solidified product, and put it into a pulverizer Grinding for 20 to 30 minutes to obtain the pulverized product, which is self-made functional filler, for later use; in parts by weight, weigh 1 part of glucose, 4 parts of molasses, 3 parts of bran, 2 parts of distil...

example 2

[0025]Weigh the egg shells, rinse them with deionized water for 4 times, then put the washed egg shells into an oven, and dry them at 108°C for 35 minutes to obtain dry egg shells, put the dried egg shells into a mortar, grind and crush them After 1 hour, pass through a 200-mesh sieve to obtain sieved egg shell powder for later use; weigh the peach gum and put it into a beaker, heat up to 75°C, stir with a glass rod while heating until the peach gum is completely melted, and then add it to the beaker Melt urea with 30% peach gum mass, and continue to stir and mix with a glass rod for 13 minutes; after stirring and mixing, put the beaker in the refrigerator, let it stand for solidification at 5°C for 1 hour, take out the solidified product, and put it into a pulverizer Grinding for 25 minutes to obtain the pulverized product, which is self-made functional filler, for later use; in parts by weight, weigh 1 part of glucose, 4 parts of molasses, 3 parts of bran, 3 parts of distille...

example 3

[0027] Weigh the egg shells, rinse them with deionized water for 5 times, then put the washed egg shells into an oven, and dry them at 110°C for 40 minutes to obtain dried egg shells, put the dried egg shells into a mortar, grind and crush them After 2 hours, pass through a 200-mesh sieve to obtain sieved egg shell powder for later use; weigh peach gum and put it into a beaker, heat up to 80°C, stir with a glass rod while heating until the peach gum is completely melted, and then add to the beaker Melt urea with 30% peach gum mass, and continue to stir and mix with a glass rod for 15 minutes; after stirring and mixing, put the beaker in the refrigerator, let it stand at 6°C for 2 hours, take out the solidified product, and put it into a pulverizer Grinding for 30 minutes to obtain the pulverized product, which is self-made functional filler, for later use; in parts by weight, weigh 2 parts of glucose, 5 parts of molasses, 4 parts of bran, 3 parts of distiller's grains, 2 parts ...

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Abstract

The invention relates to a method for preparing self-repairing concrete from egg shells, and belongs to the technical field of building material preparation. According to the method, firstly, the eggshells are ground into powder; then, peach gum is heated and melted; next, urea is coated for preparing a self-made functional filler; then, a liquid culture medium is used for culturing saccharomycetes; next, centrifugation is performed; centrifugal precipitation and vacuum freeze-drying are performed to prepare saccharomycete freeze-dried powder; finally, egg shell crushed matters, the self-madefunctional filler, the saccharomycete freeze-dried powder and other concrete raw materials are mixed to prepare the self-repairing concrete. The prepared self-repairing concrete has the advantages that the depth gap in the concrete can be fully repaired; a good self-repairing effect is achieved; the application prospects are wide.

Description

technical field [0001] The invention relates to a method for preparing self-repairing concrete by using egg shells, and belongs to the technical field of building material preparation. Background technique [0002] With the high development of human society, modern architecture poses new challenges to concrete materials, requiring concrete materials not only to bear weight, but also to have functions such as sound, light, electricity, magnetism, and heat to meet the needs of multifunctional and intelligent buildings . Repairing concrete is the most widely used building material and structural material. Due to the composition of the structure itself and its bearing capacity characteristics, repairing concrete often has some original micro-cracks inside. During its service, with the change of load and time With the passage of time, the internal cracks will expand into cracks, and even extend to the surface to cause cracking of the concrete material. After forming through crac...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B20/10E04G23/02C12N1/16C12N1/04C04B111/27
CPCC04B20/1029C04B28/04C04B2111/27C04B2201/50C12N1/04C12N1/16E04G23/0211C04B14/06C04B18/0427C04B2103/0001C04B24/24C04B24/2652
Inventor 王敏丁春美
Owner 王敏
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