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Concrete composite antiseptic

A technology for compounding preservatives and preservatives, applied in the field of concrete admixtures, can solve problems such as insignificant effects, and achieve the effects of reducing water-to-binder ratio, improving durability, and improving workability

Inactive Publication Date: 2014-12-03
SHAANXI TONGYU NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional method of increasing the thickness of the concrete protective layer can delay the corrosion of concrete, but the effect is not obvious

Method used

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  • Concrete composite antiseptic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Weigh raw materials according to the following parts by mass: 10 parts of superfine fly ash, 5 parts of polycarboxylate superplasticizer, 10 parts of AEA expansion agent, 1 part of superfine light calcium, 0.1 part of defoamer, 0.1 part of air-entraining agent parts, 10 parts of sodium hexametaphosphate, and then stir evenly.

[0022] The performance of the composite anticorrosion agent for concrete prepared according to the proportion of this embodiment is shown in Table 1.

Embodiment 2

[0024] Weigh raw materials according to the following parts by mass: 20 parts of superfine silicon powder, 7 parts of sulfamic acid superplasticizer, 25 parts of UEA expansion agent, 4 parts of superfine heavy calcium, 0.1 part of defoamer, dodecylbenzene 0.1 part of sodium sulfonate, 15 parts of sodium hexametaphosphate, and then stir evenly.

[0025] The performance of the composite anticorrosion agent for concrete prepared according to the proportion of this embodiment is shown in Table 1.

Embodiment 3

[0027] Weigh raw materials according to the following parts by mass: 30 parts of superfine slag powder, 10 parts of naphthalene-based superplasticizer, 30 parts of raw gypsum, 5 parts of superfine heavy calcium, 0.3 parts of defoamer, sodium dodecylbenzenesulfonate 0.2 parts, 20 parts of sodium hexametaphosphate, and then stir evenly.

[0028] The performance index of the concrete composite preservative made according to the ratio of this embodiment is shown in Table 1. Table 1 performance index table of each embodiment

[0029]

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Abstract

The concrete composite antiseptic is prepared by mixing the following raw materials in parts by weight: 30-50 parts of an active mineral admixture, 5-10 parts of efficient water reducer, 20-50 parts of a micro-expansion composition, 1-5 parts of a filling material composition, 0.1-0.3 part of an anti-foaming agent, 0.1-0.2 part of an air-entraining composition, 10-20 parts of an anti-corrosion antirust composition. The concrete composite antiseptic has the characteristics of being low in water-glue ratio, low in shrinkage ratio, free of rust damage to steel bars, high in compressive strength ratio and flexural-tensile strength ratio, capable of effectively resisting harmful substances (such as chlorine salts, sulfates and the like), and the like.

Description

technical field [0001] The invention belongs to the technical field of concrete admixtures, and specifically relates to a concrete admixture that can improve the resistance to chloride salt, sulfate plasma erosion, freeze-thaw damage, and improve concrete workability, compactness, impermeability, water resistance, shrinkage resistance and High-efficiency composite preservative with strength and other effects. Background technique [0002] Concrete structures such as bridges, tunnels, docks, dams, houses, and pipelines will corrode the concrete structures and their steel bars under the action of corrosive environments such as chloride salts, sulfates, and freeze-thaw, which will affect the life of the concrete structures. Therefore, the durability of reinforced concrete structures under the action of corrosive environment has become a concern of everyone. The traditional method of increasing the thickness of the concrete protective layer can delay the corrosion of concrete, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/04C04B22/16C04B103/61
Inventor 李春轩董鑫马瑞杰
Owner SHAANXI TONGYU NEW MATERIALS CO LTD
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