High-chlorine silicon slurry modified premixed concrete surface hardener and preparation method thereof

A ready-mixed concrete and hardening agent technology, applied in the field of building materials, can solve the problems of unknown surface hardening agent use effect, immature technical scheme, unclear dosage of alcohol amine compound and specific compound, etc., so as to improve hardness, improve applicability, The effect of improving wear resistance

Active Publication Date: 2020-04-28
深圳市恒星建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the above-mentioned application, the alcoholamine compound needs to react with Cl under the action of catalyst A - The reaction generates an alcohol amine hydrochloride complex, but the amount of the alcohol amine compound and the specific compound corresponding to the catalyst A are not clear, and the effect of using the surface hardening agent prepared is also unknown, which has caused its technical solution immature

Method used

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  • High-chlorine silicon slurry modified premixed concrete surface hardener and preparation method thereof
  • High-chlorine silicon slurry modified premixed concrete surface hardener and preparation method thereof
  • High-chlorine silicon slurry modified premixed concrete surface hardener and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] (1) Add 100g of high-chloride silicon slurry into 125g of absolute ethanol, and fully stir for 3 minutes;

[0056] (2) Slowly add 36g of calcium hydroxide and 7g of lithium hydroxide to the resultant of step (1), stir, and control the temperature below 65°C, and continue stirring for 6 minutes after the addition is completed;

[0057] (3) Add 13g of triethanolamine, 23g of magnesium silicate, 4g of EDTA, 19g of ethylene glycol and 2g of tributyl phosphate to the resultant of step (2), stir, and continue stirring after the addition is complete 5 minutes, thereby making the high chloride silicon slurry modified ready-mixed concrete surface hardener according to the present invention.

Embodiment 2

[0059] (1) Add 100g of high-chloride silicon slurry into 124g of absolute ethanol, and fully stir for 4 minutes;

[0060] (2) Slowly add 38g of calcium hydroxide and 6g of lithium hydroxide to the resultant of step (1), stir, and control the temperature below 65°C, and continue stirring for 7 minutes after the addition is completed;

[0061] (3) Add 14g of triethanolamine, 22g of magnesium silicate, 5g of EDTA, 18g of ethylene glycol and 3g of tributyl phosphate to the resultant of step (2), stir, and continue stirring after the addition is complete 6 minutes, thus making the high chloride silicon slurry modified ready-mixed concrete surface hardener according to the present invention.

Embodiment 3

[0063] (1) Add 100g of high-chloride silicon slurry into 128g of absolute ethanol, and fully stir for 4 minutes;

[0064] (2) Slowly add 34g of calcium hydroxide and 7g of lithium hydroxide to the resultant of step (1), stir, and control the temperature below 65°C, and continue stirring for 7 minutes after the addition is completed;

[0065] (3) Add 12g of triethanolamine, 23g of magnesium silicate, 4g of EDTA, 20g of ethylene glycol and 2g of tributyl phosphate to the resultant of step (2), stir, and continue stirring after the addition is complete 4 minutes, thus making the high chloride silicon slurry modified ready-mixed concrete surface hardener according to the present invention.

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PUM

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Abstract

The invention discloses a high-chlorine silicon slurry modified premixed concrete surface hardener which can permeate into concrete to generate gelling substances, fill and adhere internal capillary micropores and gaps and inhibit concrete fission and erosion, thereby enhancing the surface compactness, resilience strength, hardness and wear resistance of the concrete. In addition, the invention further discloses a preparation method of the high-chlorine silicon slurry modified premixed concrete surface hardener, and the preparation method is simple, feasible, energy-saving, efficient and suitable for large-scale production.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a high-chloride silicon slurry modified ready-mixed concrete surface hardener and a preparation method thereof. Background technique [0002] Concrete is the foundation of modern society. It is widely used in various civil and architectural structures, such as various buildings, roads, bridges, dams, etc. Human activities are already inseparable from the use of concrete. During construction, the cementitious material in concrete undergoes complex chemical reactions with water to form hard hydrates, which bind the coarse and fine aggregates together to form a structure with high compressive strength. However, during this process, the concrete microstructure contains a large number of interpenetrating capillary pores, and the precipitation and evaporation of water when the concrete hardens and dries will also create gaps. Over time, acidic substances, dust, and moisture in the env...

Claims

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Application Information

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IPC IPC(8): C04B24/12
CPCC04B40/0039C04B22/122C04B22/06C04B24/026C04B22/064C04B22/062C04B24/122C04B22/08C04B24/121C04B24/003
Inventor 俞建松俞裕星许广森陈经怀
Owner 深圳市恒星建材有限公司
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