Composite material for constructing ecological artificial fishing rock and manufacturing method

Abstract

The invention discloses a composite material for constructing an ecological artificial fishing rock and a manufacturing method. The composite material comprises BFRP bars for replacing steel bars anda mixed material consisting of cement, water, river sand, crushed oyster shells, crushed stones and an additive, wherein the mass ratio of the cement to the water to the river sand to the crushed oyster shells to the crushed stones to the additive is 1 to 0.33-0.45 to 0.91 to 0.60 to 2.36 to 0.02, the mixing amount of the BFRP bars accounts for 0.1% of the volume of the mixed material of the artificial fishing rock, and the longitudinal BFRP bar reinforcement ratio is 0.2%. The cement is 42.5-grade ordinary Portland cement; the particle size of the river sand is 1-2mm; the particle size of thecrushed oyster shells is 1-2mm; the particle size of the crushed stones is 0.5-3.0cm; the additive is polycarboxylate superplasticizer; and the content of the superplasticizer is 2.0% of the cement content. The composite material provided by the invention has high cost performance and a remarkable ecological effect, and the manufacturing method is simple and convenient, easy to implement, effective and convenient to popularize.

Description

technical field [0001] The invention relates to a composite material and a manufacturing method for constructing an ecological artificial fish reef. Background technique [0002] Artificial fish reef is a structure artificially placed in the natural water environment to restore and optimize the ecological environment of the water area. Through its production and placement, it can multiply and trap various marine organisms to achieve the purpose of improving the ecological environment of the water area. At present, there is an increasing preference for concrete reefs at home and abroad. However, studies have found that traditional reinforced concrete fish reefs have poor crack resistance, low compressive strength, and steel bars are prone to corrosion. Corrosion of steel bars is the most important cause of durability failure of reinforced concrete structures. Corrosion of reinforced steel bars will seriously affect the overall structure to a large extent, and bring safety ha...

AI Technical Summary

Problems solved by technology

[0004] Composite material of the present invention, considers effectively overcoming a series of environmental problems that steel bar corrodes brings, replaces steel bar with basalt fiber reinforced plastic bar (hereinafter referred to as "BFRP bar"); The poor compatibility of seawater makes it difficult for the surface pore fluid to be close to seawater in a short period of time after the artificial reef is put in, causing the pH value of the surrounding seawater to rise, which is not conducive to the attachment and reproduction of algae and microorganisms. Oyster shells partially replace river sand in artificial reef concrete to make ecological artificial reefs to solve the problems of poor compatibility with seawater and low compressive strength of traditional artificial reefs