A kind of glue reducer for concrete 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 the problems of large air-entrainment, inability to handle concrete, and large fluctuations in concrete strength, so as to achieve reduced bleeding, guaranteed strength, and high porosity. low effect

Inactive Publication Date: 2015-09-16
JIANGSU YOURUI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: Aiming at the problem that the addition of the common adhesive reducer in the prior art will bring about large air-entrainment, and the concrete cannot be processed due to too many air bubbles, resulting in large fluctuations in the strength of the concrete , provide a kind of glue reducer for concrete and preparation method thereof

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A kind of preparation method of glue reducer for concrete, this preparation method has following preparation steps:

[0016] (1) Prepare the following formula components in terms of mass percentage: 35% mixed alcohol amine, 12% mixed alcohol, 10% melamine superplasticizer, 3.5% catalyst, and the balance is water;

[0017] (2) Add mixed alcohol amine, mixed alcohol, 2% by mass catalyst, and 65-80% by mass water into the reaction vessel in order, stir well, keep warm at 60°C for 1 hour, then add melamine for efficient water reduction agent and the remaining mass parts of the catalyst, continue to keep warm and stir for 0.5h, and finally add 20-35% water to dilute to obtain the finished product of glue reducer for concrete.

Embodiment 2

[0019] A kind of preparation method of glue reducer for concrete, this preparation method has following preparation steps:

[0020] (1) Prepare the following formula components in terms of mass percentage: 25% mixed alcohol amine, 20% mixed alcohol, 5% melamine superplasticizer, 2% catalyst, and the balance is water;

[0021] Step (2) is the same as the first embodiment.

Embodiment 3

[0023] A kind of preparation method of glue reducer for concrete, this preparation method has following preparation steps:

[0024] (1) Prepare the following formula components in terms of mass percentage: 45% mixed alcohol amine, 5% mixed alcohol, 15% melamine superplasticizer, 5% catalyst, and the balance is water;

[0025] Step (2) is the same as the first embodiment.

[0026] Apply the adhesive reducer obtained in the above-mentioned Examples 1 to 3 to the adhesive reducer experiment of the comparative sample in the table below, and the results are as follows: C30 concrete (unit: kg)

[0027]

[0028] It can be seen from the above table that the adhesive reducer of the present invention can improve the service performance of concrete while reducing the amount of cement by 10% to 20%. It is a high-tech energy-saving and environmentally friendly product that meets the requirements of green high-performance concrete. The concept of green high performance concrete (GHPC) p...

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Abstract

The invention relates to the technical field of researches of glue reducing agents for concrete and particularly relates to a glue reducing agent for the concrete and a preparation method of the glue reducing agent. The glue reducing agent is composed of the following formula components: 25-45% of mixed alcohol amine, 5-20% of mixed alcohol, 5-15% of a melamine efficient water reducing agent, 2-5% of a catalyst and the balance of water. The glue reducing agent has the very strong dispersity and the strong chelating effect; the glue reducing agent is used in the concrete and 10-20% of main raw materials of the concrete can be reduced; the concrete workability is improved; the bleeding is reduced and the pumping resistance is reduced, so that the concrete is dense and the concrete durability is improved; the problems that more air bubbles are formed in the concrete and cannot be treated, and the strength fluctuation of the concrete is great after similar products are added and great air bleeding is caused can be overcome; the glue reducing agent for the concrete is suitable for popularization and application.

Description

technical field [0001] The invention relates to the technical field of research and development of a glue reducer for concrete, in particular to a glue reducer for concrete and a preparation method thereof. Background technique [0002] Concrete is a kind of artificial stone made of cement cementitious material, granular aggregate and water in a certain proportion. It is uniformly stirred, compacted and formed, cured and hardened. It has the characteristics of rich raw materials, low price and simple production process. It is one of the most important civil engineering materials in contemporary times. Concrete has the characteristics of high compressive strength, good durability, and a wide range of strength grades. It is widely used in civil engineering, shipbuilding, machinery industry, ocean development, geothermal engineering and other fields. [0003] Concrete admixtures based on water reducers are important components of concrete, which have the characteristics of red...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/16C04B24/00
Inventor 钱丽明
Owner JIANGSU YOURUI TECH
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