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Concrete water reducer and preparation method thereof

A concrete water-reducing agent and water-reducing agent technology, applied in the field of concrete additives, can solve the problems of poor plasticizing effect, single performance, difficult to control, etc. Effect

Inactive Publication Date: 2017-05-31
戚明海
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the water-reducing agents currently used in the market have the disadvantages of large dosage, poor water-reducing performance, and poor plasticizing effect, and the performance of concrete water-reducing agents on the market is single, only has the function of water-reducing, and must be compounded with other materials. to change its adaptability, and it is difficult to control

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A concrete water reducer, which is made by mixing the following raw materials in parts by weight:

[0032] Polycarboxylate superplasticizer 40 parts

[0033] Sodium alkylbenzene sulfonate 10 parts

[0034] Sodium carboxymethyl cellulose 3 parts

[0035] Calcium formate 5 parts

[0036] Ethylene glycol 7 parts

[0037] 10 parts of triterpene saponins

[0038] Mass concentration is 20 parts of citric acid solution of 98%

[0039] Aluminum sulfate 5 parts

[0040] 3 parts cellulose ether

[0041] 50 parts of water.

[0042] Wherein, the weight average molecular weight of the polycarboxylate water reducer is 15,000-80,000.

[0043] A preparation method of concrete water reducer, comprising the following steps:

[0044] (1) Add polycarboxylate superplasticizer, sodium alkylbenzene sulfonate, sodium carboxymethyl cellulose, calcium formate, low molecular weight alcohol and aluminum sulfate in the reaction kettle in sequence, heat and stir to 30°C , keep stirring for...

Embodiment 2

[0048] A concrete water reducer, which is made by mixing the following raw materials in parts by weight:

[0049] Polycarboxylate superplasticizer 30 parts

[0050] Sodium alkylbenzene sulfonate 7 parts

[0051] Sodium carboxymethyl cellulose 5 parts

[0052] Calcium formate 1 part

[0053] Glycerol 15 parts

[0054] 3 parts triterpene saponins

[0055] Mass concentration is 10 parts of citric acid solution of 98%

[0056] 3 parts aluminum sulfate

[0057] xanthan gum 2 parts

[0058] 40 parts of water.

[0059] Wherein, the weight average molecular weight of the polycarboxylate water reducer is 15,000-80,000.

[0060] A preparation method of concrete water reducer, comprising the following steps:

[0061] (1) Add polycarboxylate superplasticizer, sodium alkylbenzene sulfonate, sodium carboxymethylcellulose, calcium formate, low molecular weight alcohol and aluminum sulfate in the reaction kettle in sequence, heat and stir to 40°C, Keep stirring for 30min;

[0062] ...

Embodiment 3

[0065] A concrete water reducer, which is made by mixing the following raw materials in parts by weight:

[0066] Polycarboxylate superplasticizer 50 parts

[0067] Sodium alkylbenzene sulfonate 3 parts

[0068] Sodium carboxymethyl cellulose 1 part

[0069] 3 parts calcium formate

[0070] Methanol 5 parts

[0071] 7 parts of triterpene saponins

[0072] Mass concentration is 15 parts of citric acid solution of 98%

[0073] 2 parts aluminum sulfate

[0074] 1 part cellulose ether

[0075] 20 parts of water.

[0076] Wherein, the weight average molecular weight of the polycarboxylate water reducer is 15,000-80,000.

[0077] A preparation method of concrete water reducer, comprising the following steps:

[0078] (1) Add polycarboxylate water reducer, sodium alkylbenzene sulfonate, sodium carboxymethylcellulose, calcium formate, low molecular weight alcohol and aluminum sulfate in the reaction kettle in sequence, heat and stir to 60°C, Keep stirring for 30min;

[0079...

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PUM

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Abstract

The invention relates to a concrete water reducer and a preparation method thereof, wherein the water reducer is prepared by mixing raw materials, by weight, 30-50 parts of polycarboxylate superplasticizer, 3-10 parts of sodium alkyl benzene sulfonate, 1-5 parts of sodium carboxymethylcellulose, 1-5 parts of calcium formate, 5-15 parts of low mass molecule alcohol, 3-10 parts of triterpenoid saponin, 10-20 parts of citric acid solution with 98% of mass concentration, 2-5 parts of aluminum sulfate, 1-3 parts of viscosity modifier, and 20-50 parts of water. The concrete water reducer prepared by the invention is high in water reducing rate, strong in adaptation, anti-freezing and suitable for popularization.

Description

technical field [0001] The invention relates to the technical field of concrete additives, in particular to a concrete water reducer and a preparation method thereof. Background technique [0002] As a new type of material, concrete water reducing agent can reduce mixing water consumption and improve concrete strength under the condition of constant workability and cement dosage of concrete; or save cement consumption under the condition of constant workability and strength , so concrete water reducer can not only improve the level of construction technology, improve the performance of concrete, but also save a lot of cement and manpower and material resources, and has a high value, which is already a recognized fact. [0003] However, the water-reducing agents currently used in the market have the disadvantages of large dosage, poor water-reducing performance, and poor plasticizing effect, and the performance of concrete water-reducing agents on the market is single, only h...

Claims

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Application Information

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IPC IPC(8): C04B24/38C04B103/30
CPCC04B40/0039C04B2103/302C04B24/20C04B24/383C04B24/04C04B24/10C04B24/06C04B22/148
Inventor 戚明海
Owner 戚明海
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