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Anti-mud and anti-adsorption polycarboxylic acid high-performance pumping agent

A polycarboxylic acid-based, anti-adsorption technology, applied in the field of high-performance pumping agents, can solve the problems of enhanced adsorption capacity of admixtures and large loss of concrete slump over time, and achieves the effect of enhancing competitiveness and ensuring concrete quality

Pending Publication Date: 2022-01-21
眉山海螺新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a kind of anti-mud anti-adsorption polycarboxylic acid high-performance pumping agent, to solve the 10% concentration of concrete waste slurry used in the prior art for the production of concrete, there is an enhanced adsorption capacity of the admixture, and The technical problem of the large loss of slump of the prepared concrete over time

Method used

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  • Anti-mud and anti-adsorption polycarboxylic acid high-performance pumping agent

Examples

Experimental program
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Effect test

Embodiment 1

[0038] A kind of anti-mud and anti-adsorption polycarboxylate high-performance pumping agent provided in Example 1 of the present invention comprises the following components in weight percentage: 15% anti-mud and anti-adsorption polycarboxylic acid comprehensive mother liquor, 4% slump-preserving mother liquor, 4% % ultra-long sustained-release slump mother solution, 3% sodium gluconate, 0.03% air-entraining agent, 0.05% cellulose ether, 0.005% defoamer and 0.5% water-retaining agent;

[0039] The total proportion of the pumping agent is 100%. The above-mentioned components are weighed and mixed evenly, and the balance is made up with 73.415% water.

[0040] As an optional embodiment, the anti-mud and anti-adsorption polycarboxylic acid comprehensive mother liquor.

[0041] As an optional embodiment, the hold-down mother solution is an ultra-long sustained-release hold-down mother solution.

[0042] As an optional embodiment, the air-entraining agent is triterpene saponin. ...

Embodiment 2

[0046] A kind of anti-mud and anti-adsorption polycarboxylate high-performance pumping agent provided by Example 2 of the present invention comprises the following components in weight percentage: 20% anti-mud and anti-adsorption polycarboxylic acid comprehensive mother liquor, 4% slump-preserving mother liquor, 4% % ultra-long sustained-release slump mother solution, 3% sodium gluconate, 0.03% air-entraining agent, 0.04% cellulose ether, 0.01% defoamer and 0.7% water-retaining agent;

[0047] The total ratio of the pumping agent is 100%. The above-mentioned components are weighed and mixed evenly, and the balance is made up with 68.22% water.

[0048] As an optional embodiment, the slump-preserving mother liquor is an ordinary slump-preserving mother liquor.

[0049] As an optional embodiment, the air-entraining agent is an ether air-entraining agent.

[0050] As an optional embodiment, the cellulose ether is hydroxymethyl cellulose ether.

Embodiment 3

[0052] A kind of anti-mud anti-adsorption polycarboxylate high-performance pumping agent that the embodiment 3 of the present invention provides, comprises the following composition of weight percent: 24% anti-mud anti-adsorption polycarboxylic acid comprehensive mother liquor, 5% slump-preserving mother liquor, 5% % ultra-long sustained-release slump mother solution, 3% sodium gluconate, 0.05% air-entraining agent, 0.05% cellulose ether, 0.015% defoamer and 1.0% water-retaining agent;

[0053] The total ratio of the pumping agent is 100%. The above-mentioned components are weighed and mixed evenly, and the balance is made up with 61.885% water.

[0054] As an optional embodiment, the hold-down mother solution is an ultra-long sustained-release hold-down mother solution.

[0055] As an optional embodiment, the air-entraining agent is German Evonik 601 air-entraining agent.

[0056] As an optional embodiment, the cellulose ether is hydroxypropyl methylcellulose ether.

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Abstract

The invention discloses an anti-mud and anti-adsorption polycarboxylic acid high-performance pumping agent, and solves the technical problems that when 10% concrete waste slurry water is used for producing concrete, the adsorption capacity of an admixture is enhanced, and the slump loss of the prepared concrete is large in the prior art. The pumping agent comprises the following components in percentage by weight: 15-25% of anti-mud and anti-adsorption polycarboxylic acid comprehensive mother liquor, 1-5% of slump-retaining mother liquor, 1-5% of super-long slow-release slump-retaining mother liquor, 1-3% of sodium gluconate, 0.01-0.05% of an air entraining agent, 0.01-0.05% of cellulose ether, 0.005-0.015% of a defoaming agent and 0.1-1.0% of a water-retaining agent. The C30 concrete prepared from the concrete waste slurry water with the concentration of 10% has no slump loss within 4 hours and has constructability within 5 hours, and an available pumping agent is provided for fully utilizing the cleaning waste slurry water in a mixing plant.

Description

technical field [0001] The invention relates to a high-performance pumping agent, in particular to an anti-mud and anti-adsorption polycarboxylate high-performance pumping agent. Background technique [0002] Concrete is one of the most important civil engineering materials today. Concrete has the characteristics of abundant raw materials, low price, and simple production process, so its consumption is increasing. At the same time, concrete also has the characteristics of high compressive strength, good durability, and a wide range of strength grades. Ordinary concrete is a kind of artificial stone made by mixing cement, coarse aggregate (crushed stone or pebble), fine aggregate (sand), admixture and water, and hardening. Sand and stone act as a skeleton in concrete and inhibit the shrinkage of cement; cement and water form cement slurry, which wraps on the surface of coarse and fine aggregates and fills the gaps between aggregates. The cement paste acts as a lubricant be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38
CPCC04B40/0039C04B2103/34C04B24/32C04B24/383C04B24/10C04B2103/50C04B2103/465
Inventor 范显军张冲龚磊彭方舟李成勇周进
Owner 眉山海螺新材料科技有限公司