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Anti-freezing agent for concrete and preparation method of anti-freezing agent

An antifreeze and concrete technology, applied in the field of concrete additives, can solve the problems that the performance of antifreeze products needs to be improved, the performance of antifreeze agent cannot meet the needs of use, etc. Effect

Inactive Publication Date: 2018-12-28
HENAN HUANQIU AVIATION EQUIP TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current types of concrete antifreeze mainly include -5°C, -10°C and -15°C, which can meet the temperature use requirements in most parts of the country, but when the temperature is lower than -15°C, especially in winter in northern my country The temperature may be lower than -20°C, the performance of the current antifreeze cannot meet the needs of use, and the performance of antifreeze products needs to be improved

Method used

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  • Anti-freezing agent for concrete and preparation method of anti-freezing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A concrete antifreeze agent, comprising the following raw materials in parts by weight: 12 parts of methylpentanone alcohol, 8 parts of succinamide, 5.4 parts of mushroom alcohol, 4.6 parts of sodium hexafluorophosphate, 3.8 parts of triisopropanolamine, expanded perlite 2.4 parts, 1.5 parts of N-vinylpyrrolidone;

[0021] The expansion factor of the expanded perlite is 12.

[0022] A preparation method for concrete antifreeze, comprising the following steps:

[0023] (1) Mix expanded perlite and sodium hexafluorophosphate into a stirring heating kettle, heat to 200°C at 400rpm, keep stirring for 1 hour, cool to room temperature after the end, mix with succinamide evenly and perform superfine grinding machine, and pass through a 200-mesh sieve;

[0024] (2) Add the product of step (1) into methyl pentanone alcohol, and soak for 4 hours at minus 20 degrees Celsius;

[0025] (3) Heat the product obtained in step (2) to 40° C., add mushroom alcohol, triisopropanolamine ...

Embodiment 2

[0027] A concrete antifreeze agent, comprising the following raw materials in parts by weight: 14 parts of methyl pentanone alcohol, 9 parts of succinamide, 5.8 parts of mushroom alcohol, 5 parts of sodium hexafluorophosphate, 4 parts of triisopropanolamine, expanded perlite 3 parts, 2 parts of N-vinylpyrrolidone;

[0028] The expansion factor of the expanded perlite is 13.

[0029] A preparation method for concrete antifreeze, comprising the following steps:

[0030] (1) Mix expanded perlite and sodium hexafluorophosphate into a stirring heating kettle, heat to 205°C at 450rpm, keep stirring for 1.2h, cool to room temperature after completion, mix with succinamide evenly, and pass through ultramicro Pulverizer, and pass through 200 mesh sieve;

[0031] (2) Add the product of step (1) into methyl pentanone alcohol and soak for 5 hours at minus 18 degrees Celsius;

[0032] (3) Heat the product obtained in step (2) to 45°C, add mushroom alcohol, triisopropanolamine and N-viny...

Embodiment 3

[0034] A concrete antifreeze agent, comprising the following raw materials in parts by weight: 12 parts of methylpentanone alcohol, 10 parts of succinamide, 6 parts of mushroom alcohol, 5.4 parts of sodium hexafluorophosphate, 5 parts of triisopropanolamine, expanded perlite 3.4 parts, 2.5 parts of N-vinylpyrrolidone;

[0035] The expansion factor of the expanded perlite is 14.

[0036] A preparation method for concrete antifreeze, comprising the following steps:

[0037] (1) Mix expanded perlite and sodium hexafluorophosphate into a stirring heating kettle, heat to 210°C at 500rpm, keep stirring for 1.5h, cool to room temperature after the end, mix with succinamide evenly, and pass through ultramicro Pulverizer, and pass through 200 mesh sieve;

[0038] (2) adding the product of step (1) into methyl pentanone alcohol and soaking for 6 hours at minus 15 degrees Celsius;

[0039] (3) Heat the product obtained in step (2) to 50° C., add mushroom alcohol, triisopropanolamine a...

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Abstract

The invention discloses an anti-freezing agent for concrete and a preparation method of the anti-freezing agent. The anti-freezing agent for concrete is prepared from raw materials in parts by weightas follows: 12-18 parts of methylpentanolone, 8-12 parts of succinimide, 5.4-6.6 parts of mushroom alcohol, 4.6-6.2 parts of sodium hexafluorophosphate, 3.8-5.4 parts of tri-isopropanolamine, 2.4-4 parts of expanded perlite and 1.5-3.5 parts of N-vinyl pyrrolidone. The anti-freezing agent is prepared from methylpentanolone, succinimide, mushroom alcohol, sodium hexafluorophosphate, tri-isopropanolamine, expanded perlite and N-vinyl pyrrolidone with the preparation method, can normally work at the temperature of subzero 30 DEG C, notably improves the anti-freezing performance when used in concrete, can improve the compressive strength and water reduction performance of the concrete and has good compatibility with the concrete. The preparation method adopts a simple preparation process and is convenient to operate, prone to industrial production and worth popularization.

Description

technical field [0001] The invention relates to a concrete additive, in particular to a concrete antifreeze agent and a preparation method thereof. Background technique [0002] Concrete additives are referred to as admixtures for short, including admixtures used to improve the workability of concrete mixtures, such as various water reducing agents, air-entraining agents, and pumping agents; admixtures that adjust concrete setting time and hardening performance , such as retarder, early strength agent and accelerator, etc.; admixtures to improve the durability of concrete, such as air-entraining agents, waterproofing agents and rust inhibitors, etc.; admixtures to improve other properties of concrete, such as air-entraining agents, expansion agent, antifreeze, coloring agent, waterproofing agent and pumping agent, etc. Antifreeze is an admixture that can harden concrete at negative temperatures and achieve expected performance and sufficient antifreeze strength under specif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/12
CPCC04B40/0039C04B2103/601C04B24/026C04B24/124C04B22/16C04B24/122C04B24/008C04B14/185
Inventor 王飞
Owner HENAN HUANQIU AVIATION EQUIP TECH CO LTD
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