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Anti-corrosion and anti-rust concrete and preparation method thereof

A concrete and anti-rust technology, which is applied in the field of anti-corrosion and anti-rust concrete and its preparation, can solve the problems of inability to absorb sulfate ions, limited anti-corrosion effect, etc., and achieve the purpose of enhancing surface density and hardness, increasing adsorption force, and avoiding corrosion Effect

Active Publication Date: 2021-07-30
青岛兴业商砼有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing anti-corrosion and rust inhibitors for planting can improve the chloride ion penetration resistance of concrete, can significantly alleviate the damage of chloride ions to the passivation film of steel bars, and have a significant anti-rust effect. By certain physical means, sulfate ions can be prevented from entering concrete. However, the composition ratio cannot absorb sulfate ions entering the concrete, and the anti-corrosion effect is limited

Method used

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  • Anti-corrosion and anti-rust concrete and preparation method thereof
  • Anti-corrosion and anti-rust concrete and preparation method thereof
  • Anti-corrosion and anti-rust concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1-3

[0044] In the preparation example 1-3, the epoxy resin is selected from the epoxy resin of E-44 sold by Wuxi Changqian Chemical Co., Ltd., and the polyamide resin is selected from the polyamide sold by Dongguan Guangye Plastic Raw Materials Co., Ltd. as the model 101L Resin, sodium sulfonated humate are selected from Beijing Jintong Letai Chemical Products Co., Ltd., and dibutyl tin dilaurate is selected from the dibutyl tin dilaurate sold by Shandong Baiqian Chemical Co., Ltd. as T12, The tartaric acid is selected from the tartaric acid sold by Shenzhen Morningside Biotechnology Co., Ltd. as product number 216.

preparation example 1

[0045] Preparation Example 1: (1) Add petroleum ether to epoxy resin and polyamide resin, heat to 140°C until the epoxy resin is completely dissolved, take N-methylpyrrolidone, stir at room temperature for 20h, epoxy resin, polyamide The mass ratio of amide resin and petroleum ether is 1:0.8:3, and the mass ratio of epoxy resin and N-methylpyrrolidone is 1:0.1;

[0046] (2) Dry tartaric acid at 120°C for 24 hours, add it to the result of step (1), add sodium sulfonated humate and dibutyltin dilaurate, stir at room temperature for 2 hours, heat up to 80°C to continue the reaction 2h, put it in an oven at 100°C and dry for 12h, grind and sieve, so that the average particle size of the resin powder is ≤0.025mm, and the mass ratio of epoxy resin, tartaric acid, and dibutyltin dilaurate is 1:0.13:0.05 , the mass ratio of epoxy resin and sodium sulfonated humate is 1:0.2;

[0047] (3) Soak the resin powder in a mixed solution of calcium acetate and kaolin with a concentration of 2m...

preparation example 2

[0048] Preparation Example 2: (1) Add petroleum ether to epoxy resin and polyamide resin, heat to 145°C until the epoxy resin is completely dissolved, take N-methylpyrrolidone, stir at room temperature for 22h, epoxy resin, polyamide The mass ratio of amide resin and petroleum ether is 1:0.9:4, and the mass ratio of epoxy resin and N-methylpyrrolidone is 1:0.15;

[0049] (2) Dry tartaric acid at 130°C for 22 hours, add it to the result of step (1), add sodium sulfonated humate and dibutyltin dilaurate, stir at room temperature for 3 hours, heat up to 85°C to continue the reaction 1.5h, put into 110 ℃ oven and dry for 11h, grind, sieve, make the average particle diameter of resin powder≤0.025mm, the mass ratio of epoxy resin, tartaric acid, dibutyltin dilaurate is 1:0.14: 0.06, the mass ratio of epoxy resin and sodium sulfonated humate is 1:0.4;

[0050] (3) Soak the resin powder in a mixed solution of calcium acetate and kaolin with a concentration of 3moL / L for 3h, filter, w...

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Abstract

The invention discloses an anti-corrosion and anti-rust concrete and a preparation method thereof. The anti-corrosion and anti-corrosion concrete includes the following components by weight: 270-290 parts of cement, 60-70 parts of mineral powder, 70-90 parts of fly ash, 673-727 parts of sand, 950-970 parts of stone, and 111-165 parts of water , 30-40 parts of admixture; admixture includes pumping agent and anti-corrosion and rust inhibitor; anti-corrosion and rust inhibitor includes the following components by weight: 5-9 parts of modified epoxy resin, 1-5 parts of GWZB820 type reinforcing agent , 1.5‑3.5 parts of oleic acid, 2.3‑3.1 parts of 2BaO·SiO 2 , 3.2-4.8 parts of polyaluminum phosphate, 2.6-3.4 parts of water glass, 1.5-3.5 parts of sodium molybdate, 1.8-2.6 parts of double decyl dimethyl ammonium chloride. The anti-corrosion and anti-rust concrete of the present invention has the advantages of good anti-corrosion and anti-rust effects, excellent durability, and strong heat preservation and heat insulation.

Description

technical field [0001] The invention relates to the technical field of concrete preparation, more specifically, it relates to an anti-corrosion and anti-rust concrete and a preparation method thereof. Background technique [0002] The offshore area of ​​coastal cities has always been a prime location for the city. More and more high-rise and super high-rise buildings are being built along the coastline in Qingdao. Soil and other weak foundations, most of which are in contact with the strongly weathered bedrock surface are gravel, breccia or medium and coarse sand and other water-rich and highly permeable soil layers, which forms the geological inhomogeneity of Qingdao City In coastal areas, due to the influence of seawater, the geological inhomogeneity and complexity are more obvious. The damage to the underground concrete structures near the sea is extremely concealed, and it is difficult to be found and repaired after being buried deep underground for a long time. Therefor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B24/28C04B111/20
CPCC04B28/00C04B40/0039C04B2111/20C04B2201/32C04B2201/50C04B18/08C04B14/06C04B14/02C04B18/141C04B2103/61C04B24/281C04B24/04C04B22/06C04B22/16C04B22/00C04B22/08C04B24/12
Inventor 周正阳孙丕强崔敬知周金玲
Owner 青岛兴业商砼有限公司
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