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A kind of concrete antifreeze and preparation method thereof

A technology of antifreeze and concrete, applied in the field of concrete antifreeze and its preparation, can solve the problems of steel corrosion, carcinogenicity, alkali return, etc., and achieve the effect of environmental protection performance

Active Publication Date: 2021-03-05
石家庄市矿区宏源混凝土搅拌有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention patent with authorized notification number CN 103496907 B discloses an ultra-low temperature antifreeze concrete. By adding an antifreeze agent to the concrete, the concrete can achieve an ultra-low temperature antifreeze effect. The antifreeze agent used is composed of nitrate, calcium formate and water. ; Although the antifreeze agent of this patent can achieve the purpose of low temperature antifreeze, nitrate or nitrite has carcinogenic effect, and it is easy to cause concrete alkali aggregate reaction, thereby causing adverse phenomena such as alkali return, affecting building quality and normal use
In addition, the chlorine salt in the antifreeze component of the concrete antifreeze in the prior art corrodes the steel bars, affecting the service life of the building; urea, ammonia, etc. release pungent odors, affecting the environmental quality

Method used

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  • A kind of concrete antifreeze and preparation method thereof
  • A kind of concrete antifreeze and preparation method thereof
  • A kind of concrete antifreeze and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A kind of concrete antifreeze, is prepared by following operation steps:

[0036] According to the component content in Table 1, mix sodium hydroxymethyl cellulose, water reducing agent and 1 / 4 of the total amount of water, and at 23°C,

[0037] Stir continuously at a speed of 500r / min for 5min, after stirring evenly, obtain the mixture A;

[0038] According to the component content in Table 1, mix tea saponin, alkyl glucoside, sodium succinate sulfonate and 2 / 4 of the total amount of water, and keep stirring at 25°C at a speed of 500r / min for 25min until uniform After that, mixture B is obtained;

[0039] According to the component content in Table 1, after mixing the acrylic emulsion and 1 / 4 of the total amount of water, add the hollow glass microspheres three times, add 2 / 4 of the total amount of hollow glass microspheres for the first time, and add the hollow glass microspheres for the second time 1 / 4 of the total amount of hollow glass beads, the third time addin...

Embodiment 2

[0042] A kind of concrete antifreeze, is prepared by following operation steps:

[0043] According to the component content in Example 1, mix sodium hydroxymethyl cellulose, water reducer and 1 / 4 of the total amount of water, and keep stirring at 26°C at a speed of 400r / min for 8min. After stirring evenly, you can get Mixture A;

[0044] According to the component content in Example 1, tea saponin, alkyl glucoside, sodium succinate sulfonate and 2 / 4 of the total amount of water were mixed, and at 28°C, the speed of 420r / min was continuously stirred for 34min, and the After uniformity, mixture B is obtained;

[0045] According to the component content in Example 1, after mixing the acrylic emulsion and 1 / 4 of the total amount of water, the hollow glass microspheres were added in three times, the first time adding 2 / 4 of the total amount of hollow glass microspheres, the second time Add 1 / 4 of the total amount of hollow glass beads, and add 1 / 4 of the total amount of hollow gl...

Embodiment 3

[0048] A kind of concrete antifreeze, is prepared by following operation steps:

[0049] According to the component content in Example 1, mix sodium hydroxymethyl cellulose, water reducing agent and 1 / 4 of the total amount of water, and keep stirring at 30°C for 10 minutes at a speed of 300r / min. After stirring evenly, you can get Mixture A;

[0050] According to the component content in Example 1, tea saponin, alkyl glucoside, sodium succinate sulfonate and 2 / 4 of the total amount of water were mixed, and at 35°C, the speed of 300r / min was continuously stirred for 40min, stirring After uniformity, mixture B is obtained;

[0051] According to the component content in Example 1, after mixing the acrylic emulsion and 1 / 4 of the total amount of water, the hollow glass microspheres were added in three times, the first time adding 2 / 4 of the total amount of hollow glass microspheres, the second time Add 1 / 4 of the total amount of hollow glass beads, add 1 / 4 of the total amount of...

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Abstract

The invention relates to the technical field of concrete mixing and processing, in particular to a concrete antifreeze agent, comprising the following raw material components in parts by weight: 20-35 parts of acrylic acid emulsion, 2-7 parts of hollow glass microspheres, and 0.4-1 part of tea saponin , 25-40 parts of hydroxymethylcellulose sodium, 8-15 parts of alkyl glycosides, 0.1-0.3 parts of sodium succinate sulfonate, 30-50 parts of water reducing agent and 100-180 parts of water, the acrylic emulsion and The weight ratio of the hollow glass microspheres is 5-10; when used in concrete mixing processing, the concrete can be antifreeze and antifreeze, and the product is environmentally friendly without affecting the construction quality and normal use; the invention also provides the antifreeze The preparation method of the agent is used to prepare the concrete antifreeze agent with good antifreeze performance.

Description

technical field [0001] The invention relates to the technical field of concrete mixing and processing, in particular to a concrete antifreeze agent and a preparation method thereof. Background technique [0002] In building construction, whether it is foundation, pile foundation construction, or house construction, a large amount of concrete is required. In the process of concrete mixing and processing, the mixing and processing of concrete are basically done outdoors. When mixing and processing in winter, due to the increased difference between the temperature of concrete and the outside air temperature, heat exchange will occur between the concrete and the ambient temperature. When the ambient temperature is very low, this heat exchange will quickly reduce the temperature of the concrete. For fresh concrete, the speed of temperature drop directly determines the size of the hydration temperature, the faster the temperature drops, the slower the growth of concrete strength....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/38C04B103/60
CPCC04B40/0039C04B2103/601C04B24/26C04B14/24C04B24/10C04B24/383C04B24/16C04B2103/302
Inventor 芦兰文
Owner 石家庄市矿区宏源混凝土搅拌有限公司
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