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Anticorrosion anticrack reinforcing agent for concrete

A reinforcing agent and concrete technology, which is applied in the field of anti-corrosion and anti-cracking reinforcing agents for concrete, which can solve the problems of poor shrinkage reduction effect and severe erosion of underground structures, and achieve the effects of increased life, enhanced volume stability, and increased strength

Active Publication Date: 2013-05-15
江苏瑞海新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] ②The coastal underground is rich in chlorine salt, which erodes the underground structure severely;
The product has excellent expansion performance in the later stage, but poor shrinkage effect in the early stage

Method used

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  • Anticorrosion anticrack reinforcing agent for concrete
  • Anticorrosion anticrack reinforcing agent for concrete

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The purpose of this embodiment is to achieve the best shrinkage reduction effect, to meet the engineering anti-crack, anti-carbonization and anti-corrosion and anti-cracking reinforcing agent for low-cost concrete that is resistant to chlorine salt erosion. The components are as follows by weight %:

[0037] Ethylene oxide polymer 5%, polypropylene fiber 4%, anti-chlorine salt erosion component 80%, polysiloxane 10%, rosin 0.5%, citric acid 0.5%.

[0038] The above-mentioned components are crushed into granules that can be put into the grinder, mixed evenly, and the mixed material is ground until the particle size reaches 300-500 mesh, and mixed with polyacrylonitrile fiber to prepare the anti-corrosion and anti-cracking enhancer for A-type concrete.

Embodiment 2

[0040] The purpose of this embodiment is to achieve shrinkage reduction effect, while satisfying engineering anti-cracking, anti-corrosion and anti-corrosion anti-crack reinforcing agent for concrete of chlorine salt erosion, each component is as follows by weight %:

[0041] Ethylene oxide polymer 2%, polyacrylonitrile fiber 6%, anti-chlorine salt corrosion component 60%, polysiloxane 30%, rosin 0.5%, citric acid 1.5%.

[0042] The above-mentioned components are broken into grindable granules, mixed evenly, and the mixed material is ground until the particle size reaches 300-500 mesh, and mixed with polyacrylonitrile fibers to prepare a B-type concrete anti-corrosion and anti-cracking enhancer.

Embodiment 3

[0044] The purpose of this embodiment is to achieve a medium shrinkage effect, while satisfying engineering anti-crack, anti-carbonization and anti-corrosion anti-cracking reinforcing agent for concrete, the components are as follows by weight %:

[0045] Ethylene oxide polymer 3%, polyacrylonitrile fiber 6%, anti-chlorine salt corrosion component 70%, polysiloxane 20%, rosin 0.5%, citric acid 0.5%.

[0046] The above-mentioned components are crushed into granules that can be put into the grinder, mixed uniformly, the mixed material is ground until the particle size reaches 300-500 mesh, and mixed with polyacrylonitrile fiber to prepare the anti-corrosion and anti-cracking enhancer for C-type concrete.

[0047] The various indicators of the anti-corrosion and anti-crack reinforcing agent for concrete of embodiment 1-3

[0048]

[0049]

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Abstract

An anticorrosion anticrack reinforcing agent for concrete comprises the following compositions in percentage by weight: 2-5% of shrinkage composition, 4-8% of early-stage plastic prevention shrinkage composition, 60-80% of chlorine salt corrosion prevention composition, 10-30% of carbonization prevention composition, 0-0.5% of entraining composition, and 0-2% of condensation slowing down composition. The early-stage plastic prevention shrinkage composition refers to polypropylene fiber and polyacrylontrile fiber, the chlorine salt corrosion prevention composition is of an inorganic non-metallic compound and comprises a mixture of superfine mining powder and manganese oxide, and the carbonization prevention composition is of an activated silicon compound. The anticorrosion anticrack reinforcing agent for concrete has the characteristics of being wide in raw material sources, low in cost, simple and convenient to operate, and free from pollution.

Description

technical field [0001] The patent application of the present invention relates to an anti-corrosion and anti-cracking enhancer for concrete that is mixed into cement mortar to reduce concrete cracks and carbonation and resist chlorine salt corrosion. Background technique [0002] In developed coastal cities, the underground structure and civil air defense structure have to face the following natural conditions and characteristics: [0003] ① With the increase of excavation depth, the groundwater becomes more and more abundant; [0004] ②The coastal underground is rich in chlorine salt, which erodes the underground structure severely; [0005] ③The wind force along the coast is relatively strong, which forms a thrust on the above-ground buildings, and at the same time requires the underground structures to resist large shear forces; [0006] ④ CO2 concentrations in developed coastal cities are generally higher than those in central and western regions; [0007] At present,...

Claims

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Application Information

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IPC IPC(8): C04B24/40C04B16/06
Inventor 蒋成飞
Owner 江苏瑞海新材料科技有限公司
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