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A kind of conditioner for polycarboxylate pumping agent

A technology of polycarboxylic acid series and pumping agent, which is applied in the field of polycarboxylic acid pumping agent to achieve the effects of improving cohesion, controlling slump loss and reducing bleeding rate

Active Publication Date: 2016-01-20
曹乃镛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the influence of mud content on concrete performance during the use of current polycarboxylate pumping agent, the present invention provides a regulator for polycarboxylate pumping agent, which can effectively inhibit the impact of mud content in concrete aggregate on polycarboxylate The influence of the dosage of acid superplasticizer, reduce the dosage of polycarboxylate superplasticizer, improve the workability of concrete, and maintain the performance of polycarboxylate superplasticizer

Method used

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  • A kind of conditioner for polycarboxylate pumping agent
  • A kind of conditioner for polycarboxylate pumping agent
  • A kind of conditioner for polycarboxylate pumping agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1 , Preparation of regulator for polycarboxylate pumping agent

[0024] Including the following steps:

[0025] Step (1) Weigh each component according to the following ratio:

[0026]

[0027] Step (2) Mix the solid dispersant water glass, cellulose ether, and powder defoamer aluminum stearate with a high-efficiency centrifugal mixer;

[0028] Step (3) Turn on the power, start the air compressor, stop automatically when it reaches 0.4MPa, turn on the dust removal fan, and start the high-speed mixer for stirring;

[0029] Step (4) Adding sodium sulfate, polyhydroxy aldehyde, sodium phosphate and sodium citrate in sequence;

[0030] Step (5) After the blanking is completed, stir at high speed for 5 minutes; transport the mixed semi-finished product to the grinding equipment, and grind to 100 mesh to obtain.

Embodiment 2

[0031] Example 2 , Preparation of regulator for polycarboxylate pumping agent

[0032] Including the following steps:

[0033] Step (1) Weigh each component according to the following ratio:

[0034]

[0035] Step (2) Mix the solid dispersant triethylhexyl phosphoric acid, cellulose ether, and powder defoamer propylene glycol fatty acid ester with a high-efficiency centrifugal mixer;

[0036] Step (3) Start the air compressor, stop automatically when it reaches 0.4MPa, turn on the dust removal fan, start the high-speed mixer, and stir;

[0037] Step (4) adding sodium sulfate, polyhydroxy aldehyde, potassium phosphate and potassium citrate in sequence;

[0038] Step (5) After the blanking is completed, stir at high speed for 5 minutes; transport the mixed semi-finished product to the grinding equipment, and grind to 100 mesh to obtain.

Embodiment 3

[0039] Example 3 , Preparation of regulator for polycarboxylate pumping agent

[0040] Including the following steps:

[0041] Step (1) Weigh each component according to the following ratio:

[0042]

[0043]

[0044] Step (2) The solid dispersant polyacrylamide, cellulose ether, and powder defoamer polyethylene glycol fatty acid ester are mixed with a high-efficiency centrifugal mixer;

[0045] Step (3) Start the air compressor, stop automatically when it reaches 0.4MPa, turn on the dust removal fan, and start the high-speed mixer for stirring;

[0046] Step (4) adding sodium sulfate, polyhydroxy aldehyde, sodium metaphosphate and sodium citrate in sequence;

[0047] Step (5) After the blanking is completed, stir at high speed for 5 minutes; transport the mixed semi-finished product to the grinding equipment, and grind to 100 mesh to obtain.

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Abstract

The invention provides a regulator for polycarboxylate pumping agents. The regulator comprises the following components in percentage by weight: 25-45% of sulfate, 10-20% of citrate, 20-25% of phosphate or metaphosphate, 20-25% of polyhydroxy aldehyde, 0.5-2% of solid defoaming agent, 1-5% of cellulose ether and the balance of solid dispersant. The regulator for polycarboxylate pumping agents provided by the invention can effectively inhibit effect of mud content in concrete aggregate on dosage of a polycarboxylate water reducing agent, reduce the doping amount of the polycarboxylate water reducing agent, perfect the concrete workability and maintain the use efficiency of the polycarboxylate water reducing agent.

Description

technical field [0001] The invention belongs to the technical field of polycarboxylate pumping agents, and in particular relates to a regulator for polycarboxylate pumping agents. Background technique [0002] The largest component of concrete is aggregate, accounting for about 75% of the volume of concrete. The mud content in concrete is basically brought in by the aggregate. The amount of mud content directly affects the mechanical properties and construction performance of concrete. The particles of mud are generally small, usually less than 0.05mm. Usually, the mud powder is wrapped on the surface of the aggregate to form a relatively weak interface layer, which affects the bonding force between cement and aggregate in concrete; Form a weak area in the middle and become a weak area in the concrete, and the amount of mud will increase the amount of fine powder of the material in the concrete, thereby increasing the specific surface area of ​​the material, absorbing a la...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/38C04B22/14
Inventor 曹乃镛
Owner 曹乃镛
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