Production process of early-strength alkali-free accelerating agent and product obtained with production process

A production process and technology of accelerators, which are applied in the field of concrete admixture preparation technology, can solve the problems of large damage to construction workers, high prices of low-alkali accelerators, and large loss of concrete strength.

Active Publication Date: 2017-06-13
山西华凯伟业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High-alkali accelerators have little strength loss in the later stage, but the production process consumes high energy, high cost, and cause great harm to construction personnel; low-alkali accelerators are expensive, and the late concrete strength loss is large

Method used

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  • Production process of early-strength alkali-free accelerating agent and product obtained with production process
  • Production process of early-strength alkali-free accelerating agent and product obtained with production process
  • Production process of early-strength alkali-free accelerating agent and product obtained with production process

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preparation example Construction

[0074] A fifth aspect of the present invention provides a method for preparing high-strength concrete, at least including the following steps:

[0075] Weigh each component according to the ratio, add cement, mineral powder water reducer, alkali-free quick-setting agent and water into the mixer and stir evenly to obtain a mixed solution, finally add crushed stone and machine-made sand, and stir evenly to obtain high-strength concrete .

Embodiment 1

[0079] Embodiment 1 of the present invention provides a kind of early-strength type non-alkali quick-setting agent production process, wherein, early-strength type non-alkali quick-setting agent, by weight, comprises the following components:

[0080]

[0081] The production process of the early-strength type alkali-free accelerator at least includes the following steps:

[0082] (1) Take the following components respectively according to the proportioning ratio: aluminum sulfate, sodium fluoride, ethanolamine, water;

[0083] (2) First add water to the reaction kettle, heat to 40°C, add aluminum sulfate and stir until it is completely dissolved, then add sodium fluoride, after the sodium fluoride is completely dissolved, then add ethanolamine, and after the ethanolamine is completely dissolved, the early Strong alkali-free accelerator.

Embodiment 2

[0085] Embodiment 2 of the present invention provides a kind of early-strength type non-alkali quick-setting agent production process, wherein, early-strength type non-alkali quick-setting agent, by weight, comprises the following components:

[0086]

[0087] The production process of the early-strength type alkali-free accelerator at least includes the following steps:

[0088] (1) Take the following components respectively according to the proportioning ratio: aluminum sulfate, sodium fluoride, ethanolamine, water;

[0089] (2) First add water to the reaction kettle, heat it to 60°C, add aluminum sulfate and stir until it is completely dissolved, then add sodium fluoride, after the sodium fluoride is completely dissolved, then add ethanolamine, and after the ethanolamine is completely dissolved, the early Strong alkali-free accelerator.

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PUM

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Abstract

The invention relates to the field of concrete admixtures and particularly provides a production process of an early-strength alkali-free accelerating agent. The process at least comprises steps as follows: (1) components including aluminum sulfate, sodium fluoride, ethanolamine and water are weighed in proportion respectively; (2) water is added to a reaction kettle firstly and heated to 40-60 DEG C, aluminum sulfate is added and stirred till complete dissolution, sodium fluoride is added, ethanolamine is added after sodium fluoride is completely dissolved, and the early-strength alkali-free accelerating agent is obtained after ethanolamine is completely dissolved.

Description

technical field [0001] The invention relates to the field of preparation technology of concrete admixture, and more specifically, the invention provides a preparation technology of early-strength type alkali-free accelerator and its products. Background technique [0002] Concrete quick-setting agent is a chemical admixture that can make cement or concrete set quickly, and is sometimes called a setting accelerator. At present, accelerators have been widely used in shotcrete construction of tunnels, urban construction, water conservancy and electric power culverts, water diversion tunnels and other underground projects, self-waterproof shotcrete support, leak prevention, plugging construction, rapid construction of ground concrete and emergency concrete construction. Emergency and other projects. [0003] At present, concrete accelerators are divided into solid accelerators and liquid accelerators according to their physical properties. The solid powder quick-setting agent ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B24/12C04B24/38C04B103/12
CPCC04B28/00C04B40/0039C04B2103/12C04B2111/00293C04B2201/50C04B22/148C04B22/126C04B24/122C04B22/002C04B24/383C04B24/38C04B14/06C04B14/024C04B18/141C04B14/02C04B24/24
Inventor 阎国胜郭新岳马建强曹龙
Owner 山西华凯伟业科技有限公司
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