High efficiency concrete composite admixture

A technology for compounding admixtures and concrete is applied in the field of multifunctional concrete admixtures, which can solve the problems of single function and large dosage, and achieve the effects of simple process, excellent performance and improved homogeneity.

Inactive Publication Date: 2014-02-19
JIANGSU BAIRUIJI NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing concrete admixture has a single function, and if it is necessary to improve various properties, the dosage is often large

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] High-efficiency concrete composite admixture weight composition: 5% triethanolamine, 10% sodium lignosulfonate, 2% naphthalene-based superplasticizer, 1% bone glue, 5% tartaric acid, rosin 2%, sodium dodecylbenzenesulfonate 3%, the rest is water.

[0026] The production method is as follows: First, heat and melt rosin, aggregate and water at 100°C, cool to 35°C, stir in a mixer, and add sodium dodecylbenzenesulfonate, sodium ligninsulfonate, naphthalene-based high-efficiency The water reducer and triethanolamine are stirred for 4 hours.

[0027] The performance of the prepared admixture was tested, and the results are as follows: the water reduction rate is 8.4%, and the compressive strength ratio is 140% for 3d, 118% for 7d, and 112% for 28d.

Embodiment 2

[0029] Weight composition of high-efficiency concrete composite admixture: 20% triethanolamine, 15% sodium lignosulfonate, 3% naphthalene-based superplasticizer, 2% bone glue, 15% tartaric acid, 3% rosin, sodium dodecylbenzenesulfonate 5%, the rest is water.

[0030] Production method is the same as embodiment one.

[0031] The performance of the prepared admixture was tested, and the results are as follows: the water reduction rate is 8.5%, and the compressive strength ratio is 139% for 3d, 117% for 7d, and 112% for 28d.

Embodiment 3

[0033] Weight composition of high-efficiency concrete composite admixture: 10% triethanolamine, 12% sodium lignosulfonate, 2.5% naphthalene-based superplasticizer, 1.5% bone glue, 10% tartaric acid, 2.5% rosin, sodium dodecylbenzenesulfonate 4%, the rest is water.

[0034] Production method is the same as embodiment one.

[0035] The performance of the prepared admixture was tested, and the results are as follows: the water reduction rate is 8.5%, and the compressive strength ratio is 141% for 3d, 117% for 7d, and 114% for 28d.

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Abstract

The invention discloses a high efficiency concrete composite admixture, which comprises the following components: by weight, 5%-20% of triethanolamine, 10%-15% of sodium lignin sulfonate, 2% - 3% of a naphthalene-series high efficiency water reducer, 1% - 2% of bone glue, 5% - 15% of tartaric acid, 2% - 3% of rosin, 3% - 5% of sodium dodecyl benzene sulfonate, and the balance of water. The high efficiency concrete composite admixture has the advantages of simple process and excellent performances.

Description

technical field [0001] The invention specifically relates to a multifunctional concrete admixture. Background technique [0002] In order to improve and adjust the performance of concrete, admixtures are often added to it. However, the existing concrete admixture has a single function, and if multiple performances need to be improved, the dosage is usually relatively large. Contents of the invention [0003] The object of the present invention is to provide a concrete admixture with multiple functions in order to solve the defects in the prior art. [0004] In order to achieve the above object, the invention provides a kind of high-efficiency concrete composite admixture, is made up of following components by weight percentage: [0005] Triethanolamine 5%-20%, [0006] Sodium lignosulfonate 10%-15%, [0007] Naphthalene-based superplasticizer 2%-3%, [0008] Bone glue 1%-2%, [0009] Tartaric acid 5%-15%, [0010] Rosin 2%-3%, [0011] Sodium dodecylbenzene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/34C04B24/20
Inventor 王兴文孙忠步晓霞
Owner JIANGSU BAIRUIJI NEW MATERIAL
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