Steel slag powder artificial fish reef material and preparation method thereof

A technology of artificial fish reefs and steel slag powder, applied in clay preparation devices, chemical instruments and methods, manufacturing tools, etc., to achieve the effects of low cost, simple process, and improved biological aggregation effect

Inactive Publication Date: 2020-01-17
ZHEJIANG UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a steel slag powder artificial fish reef material and its preparation method for the growth scene of marine organisms such as underwater algae and fish

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  • Steel slag powder artificial fish reef material and preparation method thereof

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Embodiment Construction

[0022] The steel slag powder artificial fish reef material provided in the present invention has the following mass percentage relationship of the raw material formula: oyster shell powder 15-40%; steel slag powder 30-60%; fly ash 5-10%; slag powder 5-10% ; Portland cement 5-10%.

[0023] Among them, oyster shell powder is obtained from natural oyster shells by drying, crushing, and screening, and the particle size of the powder is between 1mm and 5mm; steel slag powder is obtained from steel slag through magnetic separation, grinding, and powder selection, and the specific surface area is between 1mm and 5mm. 300~500m 2 Between / kg; CaO content in fly ash exceeds 10%, fineness ≤ secondary ash; slag powder is granulated blast furnace slag powder, activity index ≥ S75 grade ash; Portland cement is silicic acid of grade 42.5 and above salt cement.

[0024] The preparation method of the steel slag powder artificial fish reef material comprises the following steps:

[0025] (1)...

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Abstract

The invention relates to a marine ranch technology, and aims to provide a steel slag powder artificial fish reef material and a preparation method thereof. A raw material formula of the steel slag powder artificial fish reef material comprises the following components in percentage by mass: 15-40% of oyster shell powder, 30-60% of steel slag powder, 5-10% of fly ash, 5-10% of slag powder and 5-10%of Portland cement. According to the invention, a large amount of the steel slag powder is utilized, so the method is low in cost, simple and convenient in process and suitable for large-scale production and has popularization significance. The obtained material has the same early strength and later strength as an artificial fish reef, has 90-d strength of more than 30 MPa, and can resist the influence of sea tides, sea waves and ocean currents in long-term service. The artificial fish reef material in the invention is nearly neutral in surface alkalinity, has an oyster shell active channel for living, is rich in iron, calcium and other elements, and provides a suitable gathering living place for marine organisms.

Description

technical field [0001] The invention relates to a steel slag powder artificial fish reef material and a preparation method thereof, belonging to the technical field of marine ranching. Background technique [0002] With the rapid development of marine economy, the construction of marine ranch has become one of the important directions in the field of marine engineering. At present, there have been a large number of deep-sea cage culture reports, but the species of cultured species is relatively single, the scale of culture is limited, and no group biological gathering place has been formed. From the perspective of marine ranches in Shandong, Guangdong and other places, artificial reefs that use materials to imitate the living environment of marine organisms have become the mainstream direction of marine ranch construction, and inorganic materials have become one of the main preparation materials for artificial reefs. However, traditional cement and concrete systems will pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/08B28B1/54B28C5/00
CPCB28B1/54B28C5/00C04B28/08C04B2201/50C04B7/02C04B18/142C04B18/08C04B18/0427C04B2103/302
Inventor 徐强詹树林杨辉樊先平罗仲宽
Owner ZHEJIANG UNIV
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