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A kind of large-aperture ecological concrete for artificial coast and its preparation method

An ecological concrete and artificial coast technology, applied in the field of building materials, can solve problems such as low internal porosity, inability to attach and grow microorganisms, poor water and air permeability of concrete, and achieve the effect of promoting repair

Active Publication Date: 2015-09-23
MARINE BIOLOGY INST OF SHANDONG PROVINCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Ordinary marine concrete has poor water permeability and air permeability, and the internal porosity is low, so microorganisms cannot attach and grow. For a long time after the project is completed, there is almost no marine organisms attached to the surface.
Existing ecological concrete is generally used for embankment slope protection, the strength is generally less than 10MP, and the frost resistance and sulfate corrosion resistance cannot meet the requirements for coastal use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0026] A large-aperture ecological concrete for artificial coasts, composed of the following components by weight fraction (1kg each):

[0027] 301 parts of cement, 1532 parts of coarse aggregate, 210 parts of medium sand, 129 parts of s95 grade mineral powder, 5.16 parts of admixture, 99.5 parts of water;

[0028] The strength grade of the cement is 42.5MPa, and the apparent density is: 3190kg / m 3 ;

[0029] The particle size of the coarse aggregate is 5-16 mm, and the content of needle-like particles in the coarse aggregate is less than 2.1%;

[0030] The fineness modulus of the fine aggregate is 2.38;

[0031] The apparent density of the fly ash is 2370kg / m 3 ;

[0032] The apparent density of the mineral powder is 2840kg / m 3 ;

[0033] The admixture is a polycarboxylate superplasticizer;

[0034] A kind of large-aperture ecological concrete for artificial coast as above, the specific preparation method is as follows:

[0035] 1) Mixing and forming

[0036] The fee...

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PUM

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Abstract

The invention relates to a large aperture ecological concrete used for artificial coast. The large aperture ecological concrete comprises, by weight: 301 parts of cement, 1532 parts of coarse aggregate, 210 parts of medium sand, 129 parts of S95 grade mineral powder, 5.16 parts of an admixture, and 99.5 parts of water. Under the premise of meeting the basic functional requirements of concrete, the porous structure of the large aperture ecological concrete used for artificial coast can provide attachment and growth space for marine organisms, and a biological membrane formed on the surface can purify sea water, thereby reducing the damage of coastal projects to the marine ecological system.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a large-aperture ecological concrete used for artificial coasts and a preparation method thereof. Background technique [0002] Artificial coastal projects have brought enormous pressure to the local marine ecological environment, which is highlighted in the destruction or loss of the original marine habitat; marine pollution has intensified, and sea eutrophication has become increasingly serious. [0003] Ordinary marine concrete has poor water and air permeability, low internal porosity, and microorganisms cannot attach and grow. For a long time after the project is completed, there is almost no marine organisms attached to the surface. Existing ecological concrete is generally used for embankment slope protection, and its strength is generally less than 10MP, and its frost resistance and sulfate corrosion resistance cannot meet the requirements for coastal use. In the preven...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B38/00
Inventor 王其翔刘洪军郭一令张延青杨飞周健赵文溪
Owner MARINE BIOLOGY INST OF SHANDONG PROVINCE