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Concrete conditioner and preparation method thereof

A technology for concrete and conditioner, which is applied in the field of preparation of concrete conditioner and concrete conditioner, and achieves the effects of excellent performance, less bleeding and segregation, and excellent workability.

Active Publication Date: 2022-07-29
SHIJIAZHUANG CHANGAN YUCAI BUILDING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above water retaining agent is very effective, it is not designed for machine-made sand concrete.

Method used

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  • Concrete conditioner and preparation method thereof
  • Concrete conditioner and preparation method thereof
  • Concrete conditioner and preparation method thereof

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preparation example Construction

[0028] The present invention also provides a method for preparing a concrete conditioner. The method includes the following steps: obtaining the lubricating component A, dissolving the polyether macromonomer and its homopolymer in water, and stirring uniformly to obtain the lubricating component. A. Obtain the gas-stabilizing component B, add the nanoparticles into deionized water, and ultrasonically disperse them uniformly to obtain a nano-dispersion; add a surfactant to the nano-dispersion to obtain a modified nano-solution; add a salt-resistant concrete water-retaining agent to the modified In the nano-solution, the gas-stabilizing component B is obtained. According to the ratio of 30-60% of lubricating component A, 5-20% of gas-stabilizing component B, and the balance is water, the concrete conditioner is prepared by mixing evenly.

[0029] Wherein, the polyether macromonomer homopolymer can preferably be prepared by the following method: by weight, put 50-70 parts of pol...

Embodiment 1

[0039] A concrete conditioner mainly includes two components in the following mass percentages: 60% of lubricating component A and 5% of gas-stabilizing component B, and the balance is water.

[0040] Lubricating component A consists of polyether macromonomers and their homopolymers.

[0041] In terms of mass components, 10 parts of PEG600, 7 parts of TPEG1200, 13 parts of HPEG2400, and 30 parts of polyether macromonomer homopolymer were dissolved in 100 parts of water, and stirred for 2 hours to obtain lubricating component A.

[0042] The preparation method of the polyether macromonomer homopolymer is as follows: according to the mass components, put 50 parts of TPEG2400 and 100 parts of water into a reaction kettle, heat and stir evenly, and dissolve 0.3 parts of chain transfer agent thioglycolic acid in 20 parts of water, A dripping solution was obtained. The temperature of the reaction kettle was raised to 55°C, 0.8 parts of initiator ammonium persulfate was added to the...

Embodiment 2

[0045] A concrete conditioner mainly includes two components in the following mass percentages: 40% of lubricating component A and 13% of gas-stabilizing component B, and the balance is water.

[0046] Lubricating component A consists of polyether macromonomers and their homopolymers.

[0047] In terms of mass components, 3 parts of TPEG1200, 6 parts of TPEG2400, 2 parts of TPEG3000, 9 parts of TPEG4000, 5 parts of TPEG5000, and 40 parts of polyether macromonomer homopolymer were dissolved in 100 parts of water, and stirred for 2 hours. Lubricating component A is obtained.

[0048] The preparation method of the polyether macromonomer homopolymer is as follows: according to the mass components, put 70 parts of TPEG5000 and 100 parts of water into a reaction kettle, heat and stir evenly, dissolve 0.7 parts of chain transfer agent thioglycolic acid in 20 parts of water, A dripping solution was obtained. The temperature of the reaction kettle was raised to 80°C, 8 parts of initi...

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Abstract

The invention provides a concrete conditioner and a preparation method thereof. In terms of mass percentage, the preparation raw materials of the concrete conditioner include: 30-60% of lubricating component A and 5-20% of gas-stabilizing component B, and the balance is Water; lubricating component A contains polyether macromonomer and its homopolymer; gas-stabilizing component B contains modified nano-solution and salt-resistant concrete water-retaining agent. The concrete conditioner of the present invention can effectively improve the fluidity of concrete by using polyethers for lubrication, and using modified nano-solution and salt-resistant concrete water-retaining agent for gas stabilization, so that the concrete can maintain excellent workability. Not easy to bleed and segregate.

Description

technical field [0001] The invention relates to the field of concrete building materials, in particular to a concrete conditioner, and at the same time, the invention also relates to a preparation method of a concrete conditioner. Background technique [0002] Concrete is the most widely used construction engineering material in the world. It is composed of cementitious materials (such as lime, cement, etc.), granular aggregates (also called aggregates), water, and admixtures and admixtures added when necessary. It is a kind of artificial stone which is prepared according to a certain proportion, uniformly stirred, compacted, cured and hardened. Coarse and fine aggregates account for more than 75% of the total volume of concrete and play the role of "skeleton" in concrete. Sand as fine aggregate accounts for about 20% to 40% of the volume of concrete, and it mainly plays the role of filling the voids of coarse aggregate and optimizing aggregate gradation. In recent years, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/32C08F299/02
CPCC04B40/0039C08F299/022C04B24/32C04B14/06C04B24/005C04B14/045C04B14/28Y02W30/91
Inventor 王玉乾王进春宋欣倪涛封柯汪咏梅黄玉美王龙飞李茜茜董树强吕东伟
Owner SHIJIAZHUANG CHANGAN YUCAI BUILDING MATERIALS