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Accelerating agent as well as preparation method and application thereof

A technology of accelerator and stabilizer, which is applied in the field of accelerator and its preparation, and can solve the problems of poor stability of liquid accelerator

Pending Publication Date: 2021-11-02
DO FLUORIDE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a quick-setting agent to solve the problem of poor stability of the current liquid quick-setting agent

Method used

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  • Accelerating agent as well as preparation method and application thereof

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Effect test

Embodiment 1

[0040] The quick-setting agent of the present embodiment is mixed by the raw material of following mass parts: 37 parts of water, 47 parts of aluminum salt, 3 parts of silicate, 3 parts of fluoride salt, 5 parts of neutralizing agent, 5 parts of stabilizing agent; Described aluminum salt is aluminum sulfate octadecahydrate, and silicate is lithium silicate (modulus is 3), and fluoride salt is magnesium fluoride, and neutralizing agent is sodium aluminate, and stabilizing agent is lactic acid; The pH value of the coagulant is 5 and the solid content is 35%.

Embodiment 2

[0042] The quick-setting agent of the present embodiment is mixed by the raw material of following mass parts: 28 parts of water, 48 parts of aluminum salt, 2 parts of silicate, 5 parts of fluoride salt, 10 parts of neutralizing agent, 7 parts of stabilizing agent; The aluminum salt is aluminum sulfate octadecahydrate, the silicate is lithium silicate (modulus 4), the fluoride salt is magnesium fluoride, the neutralizing agent is composed of sodium aluminate and aluminum hydroxide, and the sodium aluminate The mass ratio with aluminum hydroxide is 1:1, and the stabilizer is citric acid; the pH value of the quick-setting agent in this embodiment is 4, and the solid content is 42%.

Embodiment 3

[0044] The quick-setting agent of the present embodiment is mixed by the raw material of following mass parts: 23 parts of water, 49 parts of aluminum salt, 1 part of silicate, 10 parts of fluoride salt, 7 parts of neutralizing agent, 10 parts of stabilizing agent; Described aluminum salt is aluminum sulfate octadecahydrate, and silicate is lithium silicate (modulus is 5), and fluoride salt is magnesium fluoride, and neutralizing agent is lithium hydroxide, and stabilizer is salicylic acid; Present embodiment The pH value of the quick-setting agent is 3, and the solid content is 50%.

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Abstract

The invention belongs to the field of building materials, and particularly relates to an accelerator as well as a preparation method and an application thereof. The accelerator is mainly prepared by mixing water and the following raw materials in parts by mass: 35-50 parts of aluminum salt, 1-3 parts of silicate, 3-10 parts of fluoride salt, 5-10 parts of a neutralizer and 5-10 parts of a stabilizer. The aluminum salt, the silicate, the fluoride salt, the neutralizer and the stabilizer are introduced into the accelerator, so that the accelerating effect is remarkable, and the stability of the accelerator can be obviously enhanced.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to an accelerator and its preparation method and application. Background technique [0002] The quick-setting agent is an admixture that can make the concrete harden quickly when mixed into the concrete. It mainly includes inorganic salts and organic substances. It sets quickly and is widely used in underground engineering, mining engineering, embankment slope reinforcement, and emergency rescue projects. It can guarantee special construction requirements and is an indispensable additive in shotcrete construction methods. [0003] Traditional accelerators can be divided into powder accelerators and liquid accelerators. Powder accelerators are mainly used for dry shotcrete, but dry spray has the disadvantages of large dust, uneven mixing and high rebound. Liquid accelerators are mainly used for wet shotcrete. The advantages of low elastic rate and high construction qua...

Claims

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Application Information

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IPC IPC(8): C04B24/06C04B28/00C04B103/12
CPCC04B40/0039C04B28/00C04B2103/12C04B2201/50C04B22/148C04B22/08C04B22/126C04B24/06C04B22/06C04B22/062
Inventor 李凌云周小平李霞闫春生薛峰峰李亚楠毋彩娥张照坡薛文亮温丰源梁鸿军
Owner DO FLUORIDE CHEM CO LTD
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