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Low solid-content accelerator and preparation method thereof

A technology of accelerator and deionized water, which is applied in the field of concrete admixtures, can solve problems such as loss of strength and high cost, and achieve the effects of high fineness, narrow particle size distribution, and accelerated reaction rate

Inactive Publication Date: 2018-06-19
云南森博混凝土外加剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the loss of strength in the actual use process of this patent is relatively large, and the transportation cost of the liquid quick-setting agent is relatively high in the actual transportation process.

Method used

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  • Low solid-content accelerator and preparation method thereof
  • Low solid-content accelerator and preparation method thereof
  • Low solid-content accelerator and preparation method thereof

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Embodiment 1

[0038] Based on the above factors, the present invention is committed to inventing and preparing a kind of low-solid quick-setting agent, and its specific implementation steps are as follows:

[0039] 1. Preparation of mother liquor of low-solid accelerator

[0040] (1) Prepared weight components: activated aluminum hydroxide: 35%; aluminum sulfate: 20%; sodium silicate: 2%; sodium carbonate: 2%; sodium hydroxide: 0.5%; deionized water: 40%; Triisopropanolamine: 0.5%;

[0041] (2) Preparation steps:

[0042] 1. Add 35% active aluminum hydroxide, 20% aluminum sulfate, and 40% deionized water to the reaction kettle, heat and stir to 80°C.

[0043] 2. After all the reaction materials in the reactor are dissolved, add the remaining reaction aids: 2% sodium silicate, 2% sodium carbonate, 0.5% sodium hydroxide, and 0.5% triisopropanolamine.

[0044] 3. Keep the temperature at 85°C and react in the reactor for 120 minutes.

[0045] 4. After the time is up, move the initial product ...

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Abstract

The invention relates to a low solid-content accelerator and a preparation method thereof, which relate to a concrete additive, and especially relates to the low solid-content accelerator. The invention also relates to the preparation method of the accelerator. The low solid-content accelerator takes active aluminium hydroxide, aluminum sulfate, sodium silicate, sodium carbonate, sodium hydroxide,deionized water, and triisopropanolamine as raw materials for a reaction, and the above raw materials are subjected to a reaction to prepare mother liquor of the low solid-content accelerator; thickening agents such as sodium polyacrylate and maltodextrin as well as a stabilizing agent cellulose ether MF4 are added as a reaction auxiliary agent during usage of the mother liquor, the solid contentof the accelerator through complex formulation is 35%, an application amount of the low solid-content accelerator is reduced during usage, production usage cost can be greatly reduced, and the earlystage intensity of the concrete and the usage intensity at a later stage cannot be influenced.

Description

technical field [0001] The invention relates to a concrete admixture, in particular to a low-solid accelerator. The invention also relates to a preparation method of the quick-setting agent. Background technique [0002] my country is currently in the rapid stage of infrastructure construction. In the process of using admixtures, the use of accelerators accounts for a large proportion in the use of concrete admixtures. The use of accelerators in the process of concrete construction can Make concrete set and harden quickly without affecting the long-term strength of concrete. Accelerator is an essential admixture in shotcrete and fast blocking materials. At present, most of the accelerators on the market have relatively high solid content. Although they have a good quick-setting effect during the use of concrete, high-solid accelerators have disadvantages such as large usage and high cost. . [0003] Chinese Patent Publication No. CN101665336A discloses a method for prepar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38C04B103/12
CPCC04B40/0039C04B2103/12C04B22/06C04B22/148C04B12/04C04B22/10C04B22/062C04B22/002C04B24/122C04B24/2641C04B24/383C04B24/226
Inventor 阿光强徐兴爱阿光城郭军李金梅
Owner 云南森博混凝土外加剂有限公司
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