Durable concrete curing agent

A concrete curing agent and durable technology, which is applied in the field of building materials, can solve the problems of poor mechanical properties and durability improvement, and achieve the improvement of mechanical properties and durability, mechanical properties and durability, and porosity. Effect

Active Publication Date: 2018-06-15
GUANGZHOU KRYSTIC BUILDING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main technical problem to be solved by the present invention is to provide a durable concrete curing agent for the shortcomings of traditional concrete curing agents that are not effective in improving the mechanical properties and durability of concrete.

Method used

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  • Durable concrete curing agent

Examples

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Effect test

example 1

[0021]Add chitosan and water into the No. 1 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 No. 1 beaker to a digital speed measuring constant temperature magnetic stirrer at At 95°C and a rotating speed of 500r / min, heat and stir to dissolve for 50min to obtain chitosan liquid; in parts by weight, 100 parts of deionized water, 20 parts of glucose solution with a mass fraction of 0.2%, and 6 parts of Bacillus pasteurii, 15 parts of glycerin, 10 parts of ethylene glycol are placed in No. 2 beakers, stirred and mixed to obtain the bacillus pasteurian bacteria liquid; Solution, 50 parts of chitosan liquid, 20 parts of urea, 30 parts of Bacillus pasteurian bacteria liquid are placed in single-necked flask, under the condition of 500r / min, stir and mix for 50min, then add chitosan liquid in single-necked flask 0.3 times the volume of sodium sulfate solution with a mass fraction of 15%, stir and ...

example 2

[0023] Add peach gum powder and water to the No. 3 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 No. 3 beaker to a digital speed measuring constant temperature magnetic stirrer, Heat and stir at 95°C and 500r / min at a speed of 500r / min to obtain peach gum solution; add gum arabic powder and water to a No. 4 beaker at a mass ratio of 1:100, stir and mix with a glass rod for 30 minutes, After swelling for 4 hours, move the No. 4 beaker to a magnetic stirrer with digital display speed measurement and constant temperature, and heat and stir to dissolve it for 50 minutes at a temperature of 95°C and a rotation speed of 500r / min to obtain gum arabic; Put sulfuric acid with a mass fraction of 50% in a No. 5 beaker at a mass ratio of 1:50, stir and react for 60 minutes at a rotational speed of 500r / min to obtain a mixed solution, and then filter the mixed solution to obtain a filter cake, which is...

example 3

[0025] Add chitosan and water into the No. 1 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 No. 1 beaker to a digital speed measuring constant temperature magnetic stirrer at At 95°C and a rotating speed of 500r / min, heat and stir to dissolve for 50min to obtain chitosan liquid; in parts by weight, 100 parts of deionized water, 20 parts of glucose solution with a mass fraction of 0.2%, and 6 parts of Bacillus pasteurii, 15 parts of glycerin, 10 parts of ethylene glycol are placed in No. 2 beakers, stirred and mixed to obtain the bacillus pasteurian bacteria liquid; Solution, 50 parts of chitosan liquid, 20 parts of urea, 30 parts of Bacillus pasteurian bacteria liquid are placed in single-necked flask, under the condition of 500r / min, stir and mix for 50min, then add chitosan liquid in single-necked flask 0.3 times the volume of sodium sulfate solution with a mass fraction of 15%, stir and...

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Abstract

The invention discloses a durable concrete curing agent, and belongs to the technical field of building materials. The durable concrete during agent is prepared through the following steps: stirring and mixing, by weight, 20-30 parts of a calcium nitrate solution, 40-50 parts of a chitosan solution, 10-20 parts of urea and 20-30 parts of Bacillus pasturii, then adding a sodium sulfate solution with the volume 0.2-0.3 times that of the chitosan solution, performing stirring and mixing, cooling the obtained solution, dropwise adding a glutaraldehyde solution with the volume 0.3-0.4 times that ofthe chitosan solution, continuously performing stirring and mixing, adjusting the pH value of the obtained solution, filtering the solution, and performing drying to obtain modified microcapsules; and stirring and mixing the modified microcapsules, a peach gum solution, an Arabic gum solution, a surfactant, phospholipids, a silane coupling agent, modified maifanite and water to obtain the durableconcrete curing agent. The durable concrete curing agent prepared by the technical scheme of the invention can significantly improve the mechanical properties and the durability of concrete.

Description

technical field [0001] The invention discloses a durable concrete curing agent, which belongs to the technical field of building materials. Background technique [0002] Concrete is an artificial stone made of cement, fine aggregate (sand), coarse aggregate (crushed stone) and water. It is the most important component of construction. The quality of concrete determines the quality of engineering construction. In order to maximize the performance of concrete, proper maintenance must be carried out, and sufficient water must be provided to ensure the hydration of the cement, thereby minimizing the porosity in the concrete and obtaining the required strength and durability. Usually after the concrete is poured, due to the humidity difference between the concrete and the surrounding environment, the moisture on the concrete surface evaporates outwards, which affects the normal hydration reaction of the concrete, fails to reach the preset strength, and even shrinks and cracks. I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B40/04
CPCC04B40/04
Inventor 黄宇成殷连海黄浩
Owner GUANGZHOU KRYSTIC BUILDING MATERIALS CO LTD
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