Marine environment-applied corrosion-resistant and high-tenacity concrete and preparation method thereof

A marine environment and concrete technology, applied in the field of building materials, can solve the problems of being unable to resist long-term immersion in sea water, erosion, affecting the ecological construction effect of marine ecological engineering, reducing the service life and use effect of facilities, etc. Good toughness, low cost effect

Inactive Publication Date: 2017-09-08
FUJIAN JIANGXIA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the large-scale economic and social construction in our country, especially the construction of island ecological engineering facilities is increasing day by day. At this stage, the facilities processed by ordinary waterproof concrete materials cannot resist the long-term immersion and erosion of seawater, which reduces the service life and use effect of the facilities.
As far as marine ecological engineering is concerned, the existing concrete facilities of marine ecological engineering are easily damaged due to seawater erosion, which affects the effect of ecological construction of marine ecological engineering.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The ratio is as follows: 250 parts of cement, 5 parts of water reducer, 100 parts of water, 25 parts of toughening material, 15 parts of dispersant, 150 parts of filler, 400 parts of fine aggregate, 300 parts of coarse aggregate, and 300 parts of sea sand , 15 parts of polyacrylate.

[0053] The water reducer is a commercially available naphthalene series high-efficiency water reducer, and its water reducing rate is 18-24%;

[0054] The dispersant is methyl cellulose.

[0055] The toughening material described in A is modified halloysite, and its preparation method comprises the following steps:

[0056] (1) Stir the activated halloysite and thionyl chloride in the organic solvent J at 40 °C for 8 h, then ultrasonicate at 70 °C for 10 h in a 20 kHz, 100 KW ultrasonic cleaner, and then Centrifuge at 4000 rpm for 25 min, separate the solid and wash it with organic solvent K, then dry it in vacuum at 35 °C for 36 h;

[0057] (2) Mix the halloysite, bifunctional organic ...

Embodiment 2

[0087] The ratio is as follows: 300 parts of cement, 4 parts of water reducing agent, 100 parts of water, 30 parts of composite toughening material, 10 parts of dispersant, 150 parts of filler, 450 parts of fine aggregate, 300 parts of coarse aggregate, 300 parts of sea sand Parts, polyacrylate 15 parts.

[0088] The water reducer is a commercially available naphthalene series high-efficiency water reducer, and its water reducing rate is 18-24%;

[0089] The dispersant is methyl cellulose.

[0090] The toughening material described in A is modified halloysite, and its preparation method comprises the following steps:

[0091] (1) Stir the activated halloysite and thionyl chloride in the organic solvent J at 50 °C for 12 h, then ultrasonicate at 80 °C for 12 h in a 20 kHz, 100 KW ultrasonic cleaner, and then Centrifuge at 5000 rpm for 30 min, separate the solid and wash it with organic solvent K, then dry it in vacuum at 40°C for 48 h;

[0092] (2) The halloysite, bifunction...

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Abstract

The invention provides a marine environment-applied corrosion-resistant and high-tenacity concrete and a preparation method thereof. The marine environment-applied corrosion-resistant and high-tenacity concrete is prepared from the main raw materials of, by weight part, 200-300 parts of cement, 4-6 parts of water reducer, 100-200 parts of water, 20-30 parts of toughening materials, 10-15 parts of dispersing agent, 100-200 parts of filling, 400-500 parts of fine aggregate, 200-300 parts of coarse aggregate, 300-500 parts of marine sand and 10-20 parts of polyacrylate, wherein the water reducer is commercially-available naphthalene-based superplasticizer with a water-reducing rate of 18-24%; the dispersing agent is methyl cellulose. The marine environment-applied corrosion-resistant and high-tenacity concrete can improve the corrosion-resistant capability by 50-80% and the durability by more than 60%.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a marine environment corrosion-resistant high-toughness concrete and a preparation method thereof. Background technique [0002] With the large-scale economic and social construction in our country, especially the construction of island ecological engineering facilities is increasing day by day. At this stage, the facilities processed by ordinary waterproof concrete materials cannot resist the long-term immersion and erosion of seawater, which reduces the service life and use effect of the facilities. Specifically for marine ecological engineering, the existing concrete facilities of marine ecological engineering are easily damaged due to seawater erosion, which affects the effect of ecological construction of marine ecological engineering. In order to improve the service life of concrete facilities in marine ecological engineering and effectively resist se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B20/02C04B14/10C04B14/28C04B14/06C04B111/24
CPCC04B28/00C04B20/023C04B20/04C04B2111/24C04B2201/50C04B24/226C04B24/383C04B14/068C04B24/2641C04B14/10C04B14/28C04B14/00C04B20/02
Inventor 吴建国
Owner FUJIAN JIANGXIA UNIV
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