Novel modified emulsifying olefin concrete curing agent

A technology of concrete curing agent and emulsified paraffin, applied in the field of construction engineering, can solve the problems of insufficient water retention performance, unfavorable popularization and use, and influence on decoration, etc., and achieve the effect of excellent film-forming ability, moderate price, and improved sealing ability

Active Publication Date: 2008-11-05
LIAONING BUILDING SCI RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the deficiencies of the existing concrete curing agent in varying degrees such that the water retention performance does not meet the technical index requirements of the building materials industry standard, it is not conducive to environmental protection, the price is high, it affects the later decoration and is not conducive to popularization and use, etc., it provides a new type of curing agent. Modified emulsified paraffin wax concrete curing agent, the components of the curing agent are formulated according to the following percentage ratio: vinyl acetate-ethylene polymer emulsion is 10-20%, silicone resin modified acrylic polymer 0-5% of the emulsion, 50-75% of the paraffin emulsion and 0.1-0.5% of the emulsified paraffin colloidal dispersant used to stabilize the emulsion state, 0.05-0.02% of the special defoamer for the emulsion, and the balance is water;

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Novel modified emulsified paraffin concrete curing agent is prepared through the following process steps:

[0035] 1), prepare paraffin wax emulsion in the high temperature resistant jacketed reactor, its proportioning is as follows,

[0036] 58# Paraffin 6.0%

[0037] Linseed oil 6.4%

[0038] Stearic Acid 2.0%

[0039] Triethanolamine 1.6%

[0040] Tap water balance

[0041] First, put the measured 58# paraffin, linseed oil, stearic acid and water into the reaction kettle according to the proportion, and stir while heating; when the water temperature in the kettle reaches above 75°C, the paraffin and stearic acid in the kettle are completely melted Immediately stop heating and start adding triethanolamine dropwise; after the addition of triethanolamine is completed, the paraffin solution in the kettle has been completely emulsified into a white emulsion;

[0042]2), prepare the modified emulsified paraffin curing agent in a slow speed disperser. The ratio is as ...

Embodiment 2

[0047] Novel modified emulsified paraffin concrete curing agent is prepared through the following process steps:

[0048] 1), prepare paraffin wax emulsion in the high temperature resistant jacketed reactor, its proportioning is as follows,

[0049] 58# Paraffin 5.5%

[0050] Linseed oil 6.0%

[0051] Stearic Acid 1.8%

[0052] Triethanolamine 1.3%

[0053] tap water balance;

[0054] Paraffin wax emulsion is obtained according to the processing step of embodiment 1;

[0055] 2), prepare the modified emulsified paraffin curing agent in a slow speed disperser. The ratio is as follows:

[0056] Get 73% of paraffin wax emulsion, 10% of commercially available vinyl acetate-ethylene polymer emulsion, 5% of silicone resin modified acrylic polymer emulsion and 0.4% of emulsified paraffin wax colloidal dispersant for stabilizing the emulsion state, The special defoamer for emulsion is 0.04%, and the balance is water. All the other steps are the same as in Example 1.

Embodiment 3

[0058] Novel modified emulsified paraffin concrete curing agent is prepared through the following process steps:

[0059] 1), prepare paraffin wax emulsion in the high temperature resistant jacketed reactor, its proportioning is as follows,

[0060] 58# Paraffin 2.25%

[0061] Linseed oil 7.4%

[0062] Stearic acid 0.75%

[0063] Triethanolamine 0.6%

[0064] tap water surplus;

[0065] Paraffin wax emulsion is obtained according to the processing step of embodiment 1;

[0066] 2), prepare the modified emulsified paraffin curing agent in a slow speed disperser. The ratio is as follows:

[0067] Get 50% of paraffin wax emulsion, 20% of commercially available vinyl acetate-ethylene polymer emulsion, 4% of silicone resin modified acrylic polymer emulsion and 0.1% of emulsified paraffin wax colloidal dispersant for stabilizing the emulsion state, The special defoamer for emulsion is 0.02%, and the balance is water. All the other steps are the same as in Example 1.

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PUM

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Abstract

The invention relates to a novel modified emulsified paraffin concrete curing agent. Aiming at overcoming the defects that the existing concrete curing agent cannot reach the industrial standard on building material in terms of the water retention property and is unfavorable for environmental protection, the price is high and the decoration at later stage is also affected, the following technical proposal is provided: the curing agent is mixed with the following materials and water: 10-20% of vinyl acetate-ethene high molecular polymer emulsion, 0-5% of silicone resin modified acrylic polymer emulsion, 50-75% of paraffin emulsion, 0.1-0.5% of colloidal dispersing agent of the emulsified paraffin for stabilizing the emulsion state and 0.05-0.02% of special defoamer for emulsion. The invention has the beneficial effects that: the chemical curing method which is adopted for retaining water is an innovation for the traditional curing method; compared with the prior art, the method is labor-saving, time-saving and water-saving and is convenient to operate, can improve the film formation ability and the sealing ability of the emulsified paraffin emulsion, and can improve the bonding and absorbing capacity of the emulsified paraffin emulsion on the concrete surface, which leads the effective water retention rate of the coating film to reach more than 90%.

Description

technical field [0001] The invention relates to a curing agent for newly poured concrete, in particular to a novel modified emulsified paraffin wax concrete curing agent. It is mainly used in the field of construction engineering. Background technique [0002] For a long time, the concrete construction site has been using the method of watering and covering to maintain the concrete. In modern building construction, traditional watering and covering maintenance are often impossible to implement. Due to the increasing number of high-rise buildings and frame-shear structures in modern urban construction, tap water is difficult to lead to high-rise buildings, which makes the maintenance of concrete extremely inconvenient. In addition, the shear wall, the bottom of the beam and some special parts are inconvenient to water and cannot be covered, so the newly poured concrete is basically not maintained during the on-site construction. On the other hand, most commercial concrete ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/24C04B24/08
Inventor 赵海南王宏旭王春波张振雷陈蜀东金恒刚
Owner LIAONING BUILDING SCI RES INST
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