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High-performance liquid accelerator composition and preparation method thereof

A composition and quick-setting agent technology, which is applied in the field of high-performance liquid quick-setting agent composition and its preparation, can solve the problems of large output, cement adaptability, poor workability of slurry, easy layering and precipitation, etc., and achieve rebound The effect of small rate, overcoming health damage, and no crystal precipitation

Inactive Publication Date: 2017-03-08
四川巨星新型材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of accelerator has a large output, is easy to layer and precipitate, and has poor adaptability to different types of cement and poor workability of slurry.

Method used

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  • High-performance liquid accelerator composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Take the preparation of 1000kg product as an example

[0035] To prepare a high-performance liquid quick-setting agent composition product, the proportion is based on weight, put 235kg of tap water and 450kg of aluminum sulfate into the mixing tank, and stir for 2 to 4 hours at 95 to 105°C until the solvent is fully dissolved; then Add 190kg of hydroxyl polyether, 55kg of propylene glycol, 40kg of anionic polyacrylamide, and 10kg of emulsified silicone oil, and stir for 1 to 1.5 hours. During the process, the temperature is maintained at 95 to 105°C; then add 20kg of sulfuric acid, and stir for 20 to 40 minutes to make it evenly mixed. Cool to normal temperature, shut down, obtain the high-performance liquid quick-setting agent product of the present invention.

Embodiment 2

[0037] Take the preparation of 1000kg product as an example

[0038] Prepare a high-performance liquid quick-setting agent composition product, and its proportioning is by weight, put 365kg of tap water, 310kg of aluminum sulfate, and 130kg of calcium sulfate into the mixing tank, and stir for 2 to 4 hours under the condition of 95 to 105°C until fully Solvent; then add 110kg hydroxy polyether, 60kg ethylene glycol, 10kg ultra-high molecular weight polyacrylamide, 5kg emulsified silicone oil in sequence, and stir for 1 to 1.5 hours. ~ 40min, make it mix evenly, cool to normal temperature, stop the machine, and obtain the high-performance liquid quick-setting agent product of the present invention.

Embodiment 3

[0040] Take the preparation of 1000kg product as an example

[0041] To prepare a high-performance liquid quick-setting agent composition product, the proportion is based on weight, put 130kg of tap water and 500kg of calcium nitrate into the mixing tank, and stir for 2 to 4 hours at 95 to 105°C until the solvent is fully dissolved; then Add 200kg of hydroxycarboxylic acid, 80kg of glycerol, 50kg of nonionic polyacrylamide, 10kg of polyoxypropylene glyceryl ether, stir for 1 to 1.5 hours, and maintain the temperature at 95 to 105°C during the process; then add 30kg of permanganate and stir for 20 ~ 40min, make it mix evenly, cool to normal temperature, shut down, and obtain the high-performance liquid quick-setting agent product of the present invention.

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PUM

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Abstract

The invention discloses a high-performance liquid accelerator composition and a preparation method thereof. The high-performance liquid accelerator composition comprises the following raw materials by weight percentage: 40-60% of inorganic salt, 10-30% of a rheological agent, 5-10% of polyol, 1-5% of inorganic acid, 1-5% of a flocculating agent, 0.5-1% of an antifoaming agent, and the balance of water; wherein the weight percentage sum of the above raw materials is 100%. The high-performance liquid accelerator has the advantages of low doping amount, non alkali, non chlorine, good storage stability, no crystallization and precipitation, low viscosity, and no strength loss at anaphase, and overcomes the disadvantages of easy layering and deposition, large viscosity and strong corrosivity in the current liquid accelerators.

Description

technical field [0001] The invention relates to a high-performance liquid accelerator composition and a preparation method thereof. Background technique [0002] Shotcrete technology is developed based on the principle of sprayed cement mortar. Compared with ordinary concrete, shotcrete has the advantages of fast setting speed and high early strength, flexible operation mode, and is suitable for construction operations in special environments such as underground mines and tunnels. Accelerator application technology plays a vital role in the implementation of shotcrete. It is an indispensable additive in the shotcrete construction method. The quality of its performance directly affects the shotcrete quality and performance. The quick-setting agent can not only accelerate the hydration and hardening of cement and form sufficient strength in a short period of time, but also increase the thickness of the first shotcrete spray layer and shorten the time interval between two spray...

Claims

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Application Information

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IPC IPC(8): C04B24/42C04B24/32C04B103/12
CPCC04B40/0039C04B2103/12C04B22/148C04B24/32C04B24/02C04B24/2652C04B24/42C04B22/141C04B22/143C04B22/085C04B24/06C04B22/082
Inventor 苏笮斌李立君
Owner 四川巨星新型材料有限公司
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