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Organic composite reinforcing steel bar rust inhibitor for reinforced concrete and method for preparing same

A technology of reinforced concrete and composite steel bars, applied in the organic composite steel bar rust inhibitor and its preparation, the field of organic steel bar rust inhibitor

Inactive Publication Date: 2010-09-29
BEIJING NEW VISION BUILDING CONSTR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the research and development and production of environmentally friendly organic composite rust inhibitors in my country are still in their infancy, and there are no mature and large-scale environmentally friendly organic composite steel rust inhibitor products.

Method used

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  • Organic composite reinforcing steel bar rust inhibitor for reinforced concrete and method for preparing same
  • Organic composite reinforcing steel bar rust inhibitor for reinforced concrete and method for preparing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Weigh 100g of epoxy-modified diethylenetriamine and put it into a glass container. When heated to 30°C, add 749g of water and 150g of sodium monofluorophosphate successively, and stir until the liquid is uniform; then add 1g of defoamer, fully Stir until the solids are uniformly dissolved, and then stand until clear to obtain a uniform liquid product.

Embodiment 2

[0019] Weigh 200g of epoxy-modified triethylenetetramine and add it to a glass container. When heated to 35°C, add 648.5g of water, 100g of sodium monofluorophosphate, and 50g of cyclohexylamine carbonate (CHC) successively, and stir until the liquid is uniform. state; then weigh 1.5g of defoamer, add it to a glass container, stir well until the solid is uniformly dissolved, and then stand until it becomes clear to obtain a uniform liquid product.

Embodiment 3

[0021] Weigh 300g of epoxy-modified tetraethylenepentamine and add it to a glass container. When heated to 40°C, add 545g of water, 50g of sodium monofluorophosphate, and 100g of cyclohexylamine carbonate (CHC) successively, and stir until the liquid is uniform. ; Then weigh 5.0g of defoamer, add it to the glass container, stir well until the solid is uniformly dissolved, and let it stand until it becomes clear to obtain a uniform liquid product.

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PUM

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Abstract

The invention provides an organic composite reinforcing steel bar rust inhibitor for reinforced concrete and a method for preparing the same. The organic composite reinforcing steel bar rust inhibitor of the invention comprises the following components in percentage by mass: 10.0 to 30.0 percent of epoxy modified polyamine, 5.0 to 15.0 percent of sodium monoflurophosphate, 0.01 to 10.0 percent of cyclohexylamine carbonate (CHC), 0.01 to 0.5 percent of antifoaming agent and 45 to 84 percent of water. The organic composite reinforcing steel bar rust inhibitor of the invention has good rust inhibiting effect on the reinforcing steel bar in the concrete, has long duration for corrosion inhibition, has no adverse effect on the durability of the concrete and can be widely applied to newly constructed reinforced concrete structures such as harbor work, coastal buildings, buildings at alkaline land, civil buildings and the like with requirements on corrosion resistance of the reinforcing steel bar.

Description

technical field [0001] The invention relates to an organic steel bar rust inhibitor for reinforced concrete, in particular to an organic compound steel bar rust inhibitor and a preparation method thereof, and also introduces the application of the organic compound steel bar rust inhibitor, which belongs to building material technology field. Background technique [0002] A structure made of reinforced concrete, which performs at least two functions, namely absorbing compressive strain and protecting the reinforcement from corrosion. The role of reinforcement is to bear tensile stress and shear stress. [0003] Corrosion of concrete and steel bars every year not only causes major economic losses in engineering construction to the country, but also causes waste of resources and environmental pollution, and even causes major loss of life and property. At present, in order to prevent and control the corrosion of steel bars in concrete and prolong the service life of structures...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/12C04B24/40C04B22/16C04B103/61
CPCC04B2111/24C04B2111/28C04B2111/74C04B40/0046
Inventor 周玉生王强邹新仲晓林邵正明王晓丰孙俊
Owner BEIJING NEW VISION BUILDING CONSTR TECH
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