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Chlorine-free ammonia-free antifreezing agent used for concrete and preparation method of antifreezing agent

An antifreeze and concrete technology, which is applied in the field of building materials and concrete antifreeze, can solve the problems of excessive dosage, insufficient test amount, and poor compound effect, etc., and achieve the effects of simple preparation method, improved antifreeze performance and stable product

Inactive Publication Date: 2018-09-28
WUHU YANGZHAN NEW MATERIAL TECH SERVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For antifreeze used at negative temperatures, although there are many types of composite antifreeze, compared with foreign countries in terms of composite technology, there are still problems such as insufficient test volume, excessive dosage, and poor composite effect. question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The antifreeze agent for chlorine-free and ammonia-free concrete in this example is composed of the following raw materials in parts by weight: 17.5 parts of naphthalene-polycarboxylic acid composite water reducer, 12.5 parts of triterpene saponins, 9 parts of glucose ester, and alkylbenzenesulfonic acid 0.7 parts of salt, 12 parts of methyl silicone oil, 8 parts of inorganic salt compound, 0.5 part of prenol polyoxyethylene ether, 80 parts of glycerin, ethanol and water, and the mass ratio of glycerin, ethanol and water is 2:1.5:0.8 ;

[0024] The preparation method of the antifreeze agent for chlorine-free and ammonia-free concrete in the present embodiment is as follows:

[0025] 1) Weigh each component according to the above formula, and add 0.7 parts of dodecylbenzenesulfonate to 80 parts of the solution that is uniformly stirred and mixed at 800 r / min by mass ratio of glycerin, ethanol and water at 800 r / min. Sodium acid and 8 parts of chemical formula (MgSO 4 ....

Embodiment 2

[0029] This example is the same as Example 1, except that the antifreeze agent for chlorine-free and ammonia-free concrete in this example is composed of the following raw materials in parts by weight: 10 parts of naphthalene-polycarboxylic acid composite water reducer, 10 parts of triterpene saponins , 6 parts of glucose ester, 0.5 part of alkylbenzene sulfonate, 8.5 parts of methyl silicone oil, 6 parts of inorganic salt compound, 0.3 part of prenol polyoxyethylene ether, 75 parts of glycerin, ethanol and water, and glycerin, ethanol The mass ratio with water is 2:1:1.

Embodiment 3

[0031] This example is the same as Example 1, except that the antifreeze agent for chlorine-free and ammonia-free concrete in this example is composed of the following raw materials in parts by weight: 20 parts of naphthalene-polycarboxylic acid composite water reducer, 15 parts of triterpene saponins , 10 parts of glucose ester, 1 part of alkylbenzene sulfonate, 15 parts of methyl silicone oil, 12 parts of inorganic salt compound, 1.8 parts of prenol polyoxyethylene ether, 85 parts of glycerin, ethanol and water, and glycerin, ethanol The mass ratio to water is 2:1.5:1.

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Abstract

The invention discloses a chlorine-free ammonia-free antifreezing agent used for concrete and a preparation method of the antifreezing agent, belongs to the technical field of building materials, andrelates to the technical field of concrete external additives. The antifreezing agent used for the concrete includes glycerin, ethanol and water; the antifreezing agent also includes the following components: 10-20 parts of a naphthalene-based-polycarboxylate composite water-reducing agent, 10-15 parts of triterpenoid saponin, 5-10 parts of glucose ester, 0.5-1 part of alkylbenzene sulfonate, 8-15parts of methyl silicone oil, 5-12 parts of an inorganic salt compound, and 0.3-0.8 part of isoamyl alcohol polyoxyethylene ether; and the antifreezing agent is prepared by adopting the preparation method of a combination of ultrasonic treatment and homogenization treatment. The method disclosed by the invention adopts the ethanol, the glycerin and the water as a mother liquor of the antifreezingagent, and the water reducing agent and an air entraining agent are added as low-heat phase-change heat-storage materials; and the preparation method is simple, and the obtained product is stable, has strong workability with the concrete, improves a bleeding phenomenon of the concrete under the negative-temperature condition, improves antifreezing performance of the concrete, has no chlorine, noammonia, and is environmentally-friendly and pollution-free.

Description

technical field [0001] The invention belongs to the technical field of building materials, relates to the technical field of concrete antifreeze, in particular to a chlorine-free and ammonia-free antifreeze for concrete and a preparation method thereof. Background technique [0002] Concrete antifreeze means that under certain negative temperature conditions, it can be added together with the concrete mixture, which can significantly reduce the freezing point of the liquid phase in the concrete, so that the concrete does not freeze or partially freeze, and can maintain the stability of the cement under the specified curing conditions. Admixture for normal hydration. In the newly revised JC475-2004 "Concrete Antifreeze", concrete antifreeze can generally be divided into three categories according to its material composition, 1) strong electrolyte inorganic salts: chlorine salt antifreeze is based on chlorine salt as the antifreeze component Additives, the biggest disadvantag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/42C04B103/60
CPCC04B40/0039C04B2103/601C04B24/02C04B22/002C04B24/00C04B24/10C04B24/20C04B24/42C04B24/32C04B22/148C04B22/142C04B2103/302
Inventor 张春松
Owner WUHU YANGZHAN NEW MATERIAL TECH SERVICE CO LTD
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