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A concrete reinforcement additive

A technology for reinforcing additives and concrete, applied in the field of concrete reinforcing additives, can solve problems such as cost waste

Active Publication Date: 2018-02-27
HUZHOU GREEN BUILDING MATERIALS DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Domestic and foreign research data show that under normal circumstances, about 10% to 30% of the cement in concrete cannot function normally, and this part of cement that can only function as a filler is the biggest waste of cost in concrete applications.

Method used

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  • A concrete reinforcement additive
  • A concrete reinforcement additive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Concrete reinforcement additive, which is prepared by the following method:

[0025] Add polyether macromonomer and sulfonate in water, raise the temperature to 60 degrees, sulfonate for half an hour, add initiator, add acrylic acid monomer dropwise while stirring, control the dropping time at 0.5 hour, keep the temperature for one hour after dropping, Cool down to 45 degrees, add alcohol amine dropwise, control the dropping time within 1 hour, and keep the temperature for one hour to complete the finished product.

[0026] The mass ratio of described sulfonate and polyether macromonomer is 1:3,

[0027] The mass ratio of the initiator to the polyether macromonomer is 1:3.

[0028] An environmentally friendly colorless transparent liquid (odorless, non-toxic, non-flammable) is obtained.

[0029] The hard insoluble matter generated by the reaction of this product can fill and block the capillary pores in the concrete, increase the compactness inside the concrete and im...

Embodiment 2

[0031] Concrete reinforcement additive, which is prepared by the following method:

[0032] Add polyether macromonomer and sulfonate in water, heat up 60 degrees, sulfonate for half an hour, add initiator, add acrylic acid monomer dropwise while stirring, control the dropping time in 1 hour, keep the temperature for one hour after dropping, Cool down to 45 degrees, add alcohol amine dropwise, control the dropping time at 0.5 hour, and keep the temperature for one hour after dropping to get the finished product.

[0033] An environmentally friendly colorless transparent liquid (odorless, non-toxic, non-flammable) is obtained.

[0034] The mass ratio of described sulfonate and polyether macromonomer is 1:3.5,

[0035] The mass ratio of the initiator to the polyether macromonomer is 1:2.5.

[0036] The hard insoluble matter generated by the reaction of this product can fill and block the capillary pores in the concrete, increase the compactness inside the concrete and improve t...

Embodiment 3

[0038] Concrete reinforcement additive, which is prepared by the following method:

[0039] Add polyether macromonomer and sulfonate in water, raise the temperature to 60 degrees, sulfonate for half an hour, add the initiator, add acrylic acid monomer dropwise while stirring, control the dropping time at 0.6 hours, keep the temperature for one hour after dropping, Cool down to 45 degrees, add alcohol amine dropwise, control the dropping time at 0.9 hours, and keep the temperature for one hour after dropping to get the finished product.

[0040] The mass ratio of described sulfonate and polyether macromonomer is 1:3.1,

[0041] The mass ratio of the initiator to the polyether macromonomer is 1:2.9.

[0042] An environmentally friendly colorless transparent liquid (odorless, non-toxic, non-flammable) is obtained.

[0043]The hard insoluble matter generated by the reaction of this product can fill and block the capillary pores in the concrete, increase the compactness inside th...

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Abstract

The invention discloses a novel concrete strengthening auxiliary. A preparation method of the concrete strengthening auxiliary comprises the steps that polyether macromonomers and sulfonate are added to water, the temperature is increased to 60 DEG C, and sulfonation is conducted for half an hour; an initiating agent is added, an acrylic monomer is dropwise added during stirring, the time of dropping is controlled to range from 0.5 h to 1 h, and after dropping addition is completed, the temperature is kept constant for one hour; the temperature is decreased to 45 DEG C, alkylol amine is dropwise added, the time of dropping is controlled to range from 0.5 h to 1 h, after dropping addition is completed, the temperature is kept constant for one hour, and a finished product is obtained. The mass ratio of the sulfonate to the polyether macromonomers is 1 to 3-3.5, and the mass ratio of the initiating agent to the polyether macromonomers is 1 to 2.5-3. The whole concrete performance is improved, and meanwhile it is found that a specific formula has an extremely significant and unexpected effect of excellently improving the shrinkage resistance performance of concrete.

Description

technical field [0001] The invention relates to the technical field of concrete additives, in particular to a concrete reinforcement additive. Background technique [0002] With the continuous advancement of concrete technology, people expect concrete to have more excellent properties, such as high strength, high workability and high durability. In addition to ordinary C10, C30, and C40, the emergence of high-performance concrete such as C60, C80, etc. has aroused the interest of scholars and engineers at home and abroad, and has been used in nuclear power nuclear islands, marine structures, high-rise buildings, viaducts, and cut-off walls. Under construction. The research and application of high-strength and high-performance concrete started relatively late in China, but the research and application of high-performance concrete have developed rapidly in the past ten years, and the continuous development of new, high-efficiency, and composite functional concrete admixtures ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/32C04B24/16
Inventor 张海棠朱士荣朱维梁卞顺发
Owner HUZHOU GREEN BUILDING MATERIALS DEV
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