Aqueous concrete seal hardener and preparation method thereof

A technology of concrete and hardener, applied in the field of construction engineering, can solve the problems of inconvenient transportation and storage, troublesome construction, etc., and achieve the effect of dense internal structure, simple construction and long-lasting effect

Active Publication Date: 2011-04-27
山东高速岩土科技有限公司
4 Cites 58 Cited by

AI-Extracted Technical Summary

Problems solved by technology

This invention comprehensively utilizes the dual effects of lithium-based salt hardener and organic resin hardener to achieve its dense harden...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Abstract

The invention relates to an aqueous concrete seal hardener and a preparation method thereof in the technical field of building materials. The aqueous concrete seal hardener comprises the following ingredients by mass percentage: 30-40 percent of silicon sol, 0.25-3.0 percent of catalyst, 0.1-0.5 percent of surface active agent, 1-5 percent of potassium methyl silicate and 53.0-66.75 percent of deionized water. In the invention, the aqueous concrete seal hardener can be directly sprayed on the surface of the concrete for construction without pollution; the aqueous concrete seal hardener has strong abrasive resistance, the hardness of the concrete is greatly improved, and the aqueous concrete seal hardener has the characteristics of high sealing property, strong water repellency and dust-proofing performance, hydrolysis is carried out by potassium methyl silicate in the hardener on the surface of the concrete and inside the concrete after permeation, so as to form a membrane with hydrophobic nature and realize the water-repellency and dust-proofing performance; the action of the aqueous concrete seal hardener is durable, and the surface of the concrete has waxing-like luster after the concrete is used for a long time.

Technology Topic

Examples

  • Experimental program(4)

Example Embodiment

[0020] Example 1
[0021] The composition and weight percentage of this embodiment are silica sol (SiO 2 40%): 30%, Potassium Metaaluminate (45%): 0.25%, Non-foaming Surfactant 8550: 0.25%, Potassium Methylsilicate (40%): 2.5%; Deionized Water: 67.0%. Trial preparation is carried out by preparing a 100kg sample.
[0022] The first step, take 22.3kg of deionized water and place it in the reactor, stir at medium speed, slowly add 0.25kg of non-foaming surfactant 8550, stir for 5 minutes, slowly add 0.25kg of potassium metaaluminate, stir for 10 for 15 minutes, stirring at low speed for 15 minutes, cover the reactor, and allow to cool slowly to room temperature. Solution 1 was formed.
[0023] In the second step, weigh 22.3kg of deionized water and place it in the reactor, stir at medium speed, slowly add 30kg of silica sol, stir at medium speed for 15 minutes, slowly add solution 1 and stir at low speed for 10 minutes to form solution 2.
[0024] The third step, weigh 22.4kg of deionized water and place it in the reactor, stir at a medium speed, first slowly add 2.5kg of potassium methyl silicate solution; then slowly add mixture 2 and stir at low speed for 10 minutes, then let stand 1 hour for sealing to form samples.
[0025] The prepared hardener was applied to the concrete surface that had been cured for 3 days in two times, and the surface was kept in a wet state for one hour each time. After curing for another 14 days, its various properties were tested. Wear resistance test: compared with the same proportion of concrete, its wear loss is reduced by 60%; compressive strength: compared with the same proportion of concrete, its Mohs hardness is increased by 2 grades; Impermeability: Compared with the same proportion of concrete, the impermeability pressure is increased by 1.5 times. After painting, the concrete surface is glossy and has no ash drop phenomenon.

Example Embodiment

[0026] Example 2
[0027] The composition and weight percentage of this embodiment are silica sol (SiO 2 40% concentration): 40%, potassium metaaluminate (45% concentration): 3.0%, non-foaming surfactant 8550: 0.1%, potassium methyl silicate (40% concentration): 1.0%; deionized Water: 55.9%. Trial preparation is carried out by preparing a 100kg sample.
[0028] The first step, take 18.6kg of deionized water and place it in the reactor, stir at medium speed, slowly add 0.1kg of non-foaming surfactant 8550, stir for 5 minutes, slowly add 3.0kg of potassium metaaluminate, stir for 10 for 15 minutes, stirring at low speed for 15 minutes, cover the reactor, and allow to cool slowly to room temperature. Solution 1 was formed.
[0029] In the second step, weigh 18.6kg of deionized water and place it in the reactor, stir at medium speed, slowly add 40kg of silica sol, stir at medium speed for 15 minutes, slowly add solution 1 and stir at low speed for 10 minutes to form solution 2.
[0030] The third step, weigh 18.7kg of deionized water and place it in the reactor, stir at medium speed, first slowly add 1.0kg of potassium methyl silicate solution; then slowly add mixture 2 and stir at low speed for 10 minutes, then let stand 1 hour for sealing to form samples.
[0031] The prepared hardener was applied to the concrete surface that had been cured for 7 days in two times, and the surface was kept in a wet state for one hour each time. After curing for another 14 days, its various properties were tested. Wear resistance test: compared with the same proportion of concrete, its wear loss is reduced by 50%; compressive strength: compared with the same proportion of concrete, its Mohs hardness is increased by 2 grades; Impermeability: Compared with the same proportion of concrete, the impermeability pressure is increased by 2.0 times. After painting, the concrete surface is glossy and has no ash drop phenomenon.

Example Embodiment

[0032] Example 3
[0033] The composition and weight percentage of this embodiment are silica sol (SiO 2 40% concentration): 35%, potassium metaaluminate (45% concentration): 1.5%, non-foaming surfactant 8550: 0.5%, potassium methyl silicate (40% concentration): 5.0%; deionized Water: 58.0%. Trial preparation is carried out by preparing a 100kg sample.
[0034] The first step, take 19.3kg of deionized water and place it in the reactor, stir at medium speed, slowly add 0.5kg of non-foaming surfactant 8550, stir for 5 minutes, slowly add 1.5kg of potassium metaaluminate, stir for 10 for 15 minutes, stirring at low speed for 15 minutes, cover the reactor, and allow to cool slowly to room temperature. Solution 1 was formed.
[0035] The second step, weigh 19.3kg of deionized water and place it in the reactor, stir at medium speed, slowly add 35kg of silica sol, stir at medium speed for 15 minutes, slowly add solution 1 and stir at low speed for 10 minutes to form solution 2.
[0036]The third step, weigh 19.4kg of deionized water and place it in the reactor, stir at a medium speed, first slowly add 5.0kg of potassium methyl silicate solution; then slowly add mixture 2 and stir at low speed for 10 minutes, then let stand 1 hour for sealing to form samples.
[0037] The prepared hardener was applied to the concrete surface that had been cured for 28 days in two times, and the surface was kept in a wet state for one hour each time. After curing for another 14 days, its various properties were tested. Wear resistance test: compared with the same proportion of concrete, its wear loss is reduced by 45%; compressive strength: compared with the same proportion of concrete, its Mohs hardness is increased by 2 grades; Impermeability: Compared with the same proportion of concrete, the impermeability pressure is increased by 1.5 times. After painting, the concrete surface is glossy and has no ash drop phenomenon.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

no PUM

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Similar technology patents

Classification and recommendation of technical efficacy words

  • High hardness
  • Improve wear resistance
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products