阅读说明：本技术 一种混凝土液体速凝剂 (Concrete liquid accelerator ) 是由 孙肖武 耿秉政 竹鹏翔 吴博 于 2020-06-10 设计创作，主要内容包括：本发明属于速凝剂技术领域,尤其是一种混凝土液体速凝剂,针对现有的粉状速凝剂存在溶解速度慢,不易分散等缺点,且仅能应用于干喷工艺施工,大部分粉状速凝剂含有强碱性物质,易对施工工人眼睛和皮肤造成伤害,且易降低混凝土强度的问题,现提出如下方案,其包括以下成分：硫酸铝35-45份,氟化钠3-9份,消泡剂6-12份,稳定剂7-10份,甘油5-10份,羟基羧酸10-15份,防腐剂4-10份,黏稠剂5-12份,异味吸附剂10-20份,水35-55份。本发明制备方便,提高了溶解速度,提高的工作效率,不会对工作人员和环境造成损害,提高混凝土的防腐性能,增强混凝土的强度。(The invention belongs to the technical field of accelerating agents, in particular to a concrete liquid accelerating agent, which aims at solving the problems that the existing powdery accelerating agent has low dissolving speed, is not easy to disperse and the like, and can only be applied to dry-spraying process construction, most of the powdery accelerating agents contain strong alkaline substances, are easy to damage eyes and skins of construction workers, and are easy to reduce the strength of concrete, and the following scheme is proposed, which comprises the following components: 35-45 parts of aluminum sulfate, 3-9 parts of sodium fluoride, 6-12 parts of a defoaming agent, 7-10 parts of a stabilizer, 5-10 parts of glycerol, 10-15 parts of hydroxycarboxylic acid, 4-10 parts of a preservative, 5-12 parts of a thickener, 10-20 parts of an odor adsorbent and 35-55 parts of water. The invention has convenient preparation, improves the dissolution speed and the working efficiency, does not cause damage to workers and environment, improves the corrosion resistance of the concrete and enhances the strength of the concrete.)

1. The concrete liquid accelerator is characterized by comprising the following components: 35-45 parts of aluminum sulfate, 3-9 parts of sodium fluoride, 6-12 parts of a defoaming agent, 7-10 parts of a stabilizer, 5-10 parts of glycerol, 10-15 parts of hydroxycarboxylic acid, 4-10 parts of a preservative, 5-12 parts of a thickener, 10-20 parts of an odor adsorbent and 35-55 parts of water.

2. The concrete liquid accelerator according to claim 1, which comprises the following components: 38-40 parts of aluminum sulfate, 5-7 parts of sodium fluoride, 8-10 parts of a defoaming agent, 8-9 parts of a stabilizer, 7-9 parts of glycerol, 11-12 parts of hydroxycarboxylic acid, 6-8 parts of a preservative, 6-10 parts of a thickener, 12-18 parts of an odor adsorbent and 40-50 parts of water.

3. The concrete liquid accelerator according to claim 1, which comprises the following components: 39 parts of aluminum sulfate, 6 parts of sodium fluoride, 9 parts of a defoaming agent, 9 parts of a stabilizing agent, 7 parts of glycerol, 10 parts of hydroxycarboxylic acid, 7 parts of a preservative, 8 parts of a thickener, 15 parts of an odor adsorbent and 46 parts of water.

4. The concrete liquid accelerator according to claim 1, wherein the preparation method comprises the following steps:

s1: adding water serving as a base into a mixer, adding aluminum sulfate and sodium fluoride into the mixer for mixing, and intermittently adding a defoaming agent;

s2: adding a stabilizer, glycerol and a preservative into a mixer for mixing, and intermittently adding a defoaming agent;

s3: adding hydroxycarboxylic acid into a mixer, mixing, intermittently adding all defoaming agents at the same time, and constantly detecting the change of the pH value;

s4: adding the odor adsorbent into a mixer, mixing to adsorb odor, precipitating, and filtering to obtain accelerator liquid;

s5: and adding a thickening agent into the accelerator liquid and stirring to make the accelerator liquid viscous.

5. The concrete liquid accelerator as claimed in claim 4, wherein in S1, water is first added to the mixer, a funnel is provided on the mixer, an adjustable valve is provided on the funnel, a defoaming agent is added to the funnel, aluminum sulfate and sodium fluoride are introduced into the mixer, the mixer is started, the mixer stirs the aluminum sulfate, sodium fluoride and water to obtain solution one, and the defoaming agent is added intermittently during the stirring to perform a defoaming function.

6. The concrete liquid accelerator as claimed in claim 4, wherein the stabilizer, the glycerol and the preservative are added to the first solution in S2 and stirred, and the addition of the defoaming agent is controlled to obtain a second solution.

7. The concrete liquid accelerator according to claim 4, wherein the hydroxycarboxylic acid is added into the second solution in S3 and stirred, the hydroxycarboxylic acid can be added in 2-3 times, the defoamer is gradually used, and the pH value of the liquid can be detected by extracting the liquid in 2-3 times during stirring to obtain a third solution.

8. The concrete liquid accelerator as claimed in claim 4, wherein the odor adsorbent is added to the third solution in S4, and slowly stirred, the odor or pungent odor can be adsorbed and precipitated by the adsorbent particles to obtain a fourth solution, and the fourth solution is filtered and filtered by a 600-mesh screen to obtain the accelerator liquid.

9. The concrete liquid accelerator according to claim 4, wherein in S5, the mixer is cleaned, the solution four is reintroduced into the mixer, the viscosity agent is added and stirred, the viscosity agent can be added in 3-5 times or intermittently, the viscosity agent can be observed conveniently, and after the preparation, the concrete liquid accelerator is packaged.

10. The concrete liquid accelerator according to claim 4, wherein the viscosity agent is added into a funnel, the flow rate is controlled by a valve, the extracted liquid is observed during stirring, and the viscosity of the liquid can be analyzed, if appropriate.

Technical Field

The invention relates to the technical field of accelerating agents, in particular to a concrete liquid accelerating agent.

Background

The concrete accelerator is a chemical additive capable of enabling cement or concrete to quickly set, is sometimes called as an accelerator, is mainly applied to sprayed concrete construction, and is applied to the surface of the concrete in engineering construction of tunnels, underground mines and the like in a spraying mode, so that the concrete can be quickly set and hardened, and the early strength of the concrete is improved.

The existing powdery accelerating agent has the defects of low dissolving speed, difficult dispersion and the like, and can only be applied to dry-spraying process construction, most of the powdery accelerating agents contain strong alkaline substances, the eyes and the skin of construction workers are easily damaged, and the strength of concrete is easily reduced.

Disclosure of Invention

The invention aims to solve the defects that the existing powdery accelerating agent has low dissolving speed, is not easy to disperse and the like, can only be applied to dry spraying process construction, most of the powdery accelerating agents contain strong alkaline substances, are easy to damage eyes and skins of construction workers, and are easy to reduce the strength of concrete.

In order to achieve the purpose, the invention adopts the following technical scheme:

a concrete liquid accelerator comprises the following components: 35-45 parts of aluminum sulfate, 3-9 parts of sodium fluoride, 6-12 parts of a defoaming agent, 7-10 parts of a stabilizer, 5-10 parts of glycerol, 10-15 parts of hydroxycarboxylic acid, 4-10 parts of a preservative, 5-12 parts of a thickener, 10-20 parts of an odor adsorbent and 35-55 parts of water.

Preferably, the following components are included: 38-40 parts of aluminum sulfate, 5-7 parts of sodium fluoride, 8-10 parts of a defoaming agent, 8-9 parts of a stabilizer, 7-9 parts of glycerol, 11-12 parts of hydroxycarboxylic acid, 6-8 parts of a preservative, 6-10 parts of a thickener, 12-18 parts of an odor adsorbent and 40-50 parts of water.

Preferably, the following components are included: 39 parts of aluminum sulfate, 6 parts of sodium fluoride, 9 parts of a defoaming agent, 9 parts of a stabilizing agent, 7 parts of glycerol, 10 parts of hydroxycarboxylic acid, 7 parts of a preservative, 8 parts of a thickener, 15 parts of an odor adsorbent and 46 parts of water.

Preferably, the concrete liquid accelerator comprises the following preparation steps:

s1: adding water serving as a base into a mixer, adding aluminum sulfate and sodium fluoride into the mixer for mixing, and intermittently adding a defoaming agent;

s2: adding a stabilizer, glycerol and a preservative into a mixer for mixing, and intermittently adding a defoaming agent;

s3: adding hydroxycarboxylic acid into a mixer, mixing, intermittently adding all defoaming agents at the same time, and constantly detecting the change of the pH value;

s4: adding the odor adsorbent into a mixer, mixing to adsorb odor, precipitating, and filtering to obtain accelerator liquid;

s5: and adding a thickening agent into the accelerator liquid and stirring to make the accelerator liquid viscous.

Preferably, in S1, water is first added into the mixer, a funnel is arranged on the mixer, an adjustable valve is arranged on the funnel, a defoaming agent is added into the funnel, aluminum sulfate and sodium fluoride are introduced into the mixer, the mixer is started, the mixer stirs the aluminum sulfate, the sodium fluoride and the water to obtain a first solution, and the defoaming agent is added intermittently during the stirring to achieve a defoaming effect.

Preferably, in the step S2, a stabilizer, glycerin and a preservative are added to the first solution, and the mixture is stirred, and the addition of the defoamer is controlled to obtain a second solution, wherein the stabilizer increases the stability of the accelerator, the glycerin has a preservative effect, and the preservative can improve the preservative property of the concrete.

Preferably, in the step S3, the hydroxycarboxylic acid is added into the second solution, and the mixture is stirred, the hydroxycarboxylic acid can be added in 2-3 times, and the antifoaming agent is gradually used, and the solution can be extracted and tested for PH value in 2-3 times while stirring, so as to obtain a third solution, wherein the hydroxycarboxylic acid has acidity and can reduce alkalinity of the accelerating agent.

Preferably, in S4, the odor adsorbent is added into the solution three and slowly stirred, the odor or pungent odor can be adsorbed and precipitated by the adsorbent particles to obtain a solution four, the solution four is filtered and filtered by a 600-mesh filter screen to obtain the accelerator liquid, and the adsorbent is activated carbon adsorbent particles or alum adsorbent particles and has a size larger than that of the filter screen.

Preferably, in S5, the mixer is cleaned, the solution four is reintroduced into the mixer, the viscosity agent is added and stirred, the viscosity agent can be added for 3-5 times or intermittently, the viscosity agent can be observed conveniently, and after preparation, the mixture is packaged, wherein the viscosity agent is powdery and is very soluble in water.

Preferably, add the viscidity agent in the funnel, through valve control flow, extract liquid during the stirring and observe, can carry out the analysis to liquid viscosity, suitable can, it can be with convenient to carry to modulate the viscidity form, rocks when avoiding carrying greatly.

Compared with the prior art, the invention has the advantages that:

(1) the solution can be conveniently used by preparing the accelerator liquid, and the dissolution speed and the working efficiency are improved;

(2) the adsorbent particles are used to adsorb peculiar smell or pungent smell, so that the influence of the pungent smell on workers is avoided;

(3) the accelerator liquid is made into a sticky shape, so that the accelerator liquid is convenient to carry and avoids large shaking during carrying;

(4) the hydroxycarboxylic acid has acidity, so that the alkalinity of the accelerator can be reduced, the accelerator is prepared into acidic liquid, and the harm of the alkalinity to the environment or workers is avoided;

(5) the defoaming agent can play a defoaming role during preparation and stirring, and simultaneously can prevent liquid from colliding with concrete to generate a large amount of bubbles during spraying and using;

(6) the stabilizer increases the stability of the accelerator, the glycerin has an anti-corrosion effect, the service life of the accelerator can be prolonged, and the preservative can improve the anti-corrosion performance of the concrete and enhance the strength of the concrete.

The invention has convenient preparation, improves the dissolution speed and the working efficiency, does not cause damage to workers and environment, improves the corrosion resistance of the concrete and enhances the strength of the concrete.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.