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A kind of concrete reducer and preparation method thereof

A glue reducer and concrete technology, which is applied in the field of concrete glue reducer and its preparation, can solve problems such as the reduction of initial expansion of fresh concrete, the loss of concrete slump, and the impact on concrete construction, so as to improve the chemical reaction efficiency and concrete The effect of slump loss is small and the cost of concrete is saved

Active Publication Date: 2022-02-01
NANJING RONGFENG ES&T CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem mainly solved by the present invention: the existing concrete glue reducer has relatively poor compatibility with concrete raw materials during use, the initial expansion degree of freshly mixed concrete is obviously reduced and the slump loss of concrete is faster, which affects the quality of concrete. The problem of normal pumping construction, providing a new type of concrete reducer

Method used

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  • A kind of concrete reducer and preparation method thereof
  • A kind of concrete reducer and preparation method thereof
  • A kind of concrete reducer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A concrete glue reducer is composed of the following components in weight percentage: 20% of N-methyldiethanolamine, 30% of tetraethylene glycol, 0.01% of air bubble regulating components, and the balance is water.

[0031] The bubble regulating component is composed of sodium laurylalanine and N-hydroxyethyl lauryl glucamide in a weight ratio of 1:2.

[0032] The preparation method of the concrete adhesive reducer is characterized in that it comprises the following steps: N-methyldiethanolamine, tetraethylene glycol, and air bubble adjustment components are respectively metered and pumped into a mixing tank for stirring for 15 minutes, and then added The rest of the water, continue to stir for 30 minutes to obtain the concrete reducer.

Embodiment 2

[0034] A concrete glue reducer is composed of the following components in weight percentage: 45% of tetraethylene pentamine, 15% of hexaethylene glycol, 0.1% of air bubble regulating components, and the balance is water.

[0035] The bubble regulating component is composed of sodium laurylalanine and N-hydroxyethyl lauryl glucamide in a weight ratio of 0.5:1.

[0036] The preparation method of the concrete glue reducer is characterized in that it comprises the following steps: measure and pump tetraethylenepentamine, hexaethylene glycol, and air bubble adjustment components into a mixing tank for stirring for 20 minutes, and then add The rest of the water, continue to stir for 30 minutes to obtain the concrete reducer.

Embodiment 3

[0038] A concrete glue reducer is composed of the following components in weight percentage: 35% of 2,6-diethylaniline, 20% of ethylene glycol nonacetal, 0.05% of air bubble regulating components, and the balance is water.

[0039] The bubble regulating component is composed of sodium laurylalanine and N-hydroxyethyl lauryl glucamide in a weight ratio of 2:1.

[0040] The preparation method of the concrete glue reducer is characterized in that it comprises the following steps: after measuring diethylaniline, nonaethylene glycol, and air bubble regulating components, pump them into the mixing tank and stir for 18 minutes, and then supplement the remaining amount water, and continue to stir for 30 minutes to obtain the concrete glue reducer.

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Abstract

The invention belongs to the technical field of concrete admixtures, and discloses a concrete adhesive reducer, which is composed of the following components in percentage by weight: 20-45% of organic amine, 15-30% of low molecular weight polyethylene glycol, and air bubble regulating components 0.01‑0.1%, balance water. The concrete glue reducer of the present invention has the advantages of non-toxicity, simple process, no pollution, low energy consumption and easy industrial production, can effectively improve the workability of concrete, increase the rich slurry amount of cement-based slurry, and improve the cement-based gelling in concrete The chemical reaction efficiency of the material saves the cost of concrete.

Description

technical field [0001] The invention belongs to the technical field of concrete admixtures, in particular to a concrete glue reducer and a preparation method thereof. Background technique [0002] Ordinary cement concrete is prepared by cement-based cementitious materials, granular aggregates (also known as aggregates), water and various types of concrete admixtures in a certain proportion, mixed evenly, densely formed, and hardened after curing An artificial stone. It has the characteristics of abundant raw materials, low price, and simple production process. It is one of the most important civil engineering materials in the contemporary era. At the same time, concrete also has the characteristics of high compressive strength, good durability, and a wide range of strength grades. These characteristics make it widely used in civil engineering construction. In the 21st century, people need to pay more attention to the protection of the environment. On the premise of ensurin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/16
CPCC04B40/0039C04B24/122C04B24/026C04B24/16C04B24/124C04B24/121
Inventor 章岳
Owner NANJING RONGFENG ES&T CO LTD
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