High-strength steel slag concrete for building artificial fish reef

Abstract

The invention relates to a high-strength steel slag concrete for building an artificial fish reef. The high-strength steel slag concrete is prepared from, by mass, 400-450 parts of ordinary Portland cement clinker, 1200-1500 parts of waste steel slag, 580-620 parts of dry river sand, 185-200 parts of water and 25-35 parts of an additive, wherein the crushing value of the waste steel slag is smaller than 20%, the loose stacking density of coarse aggregate of the steel slag ranges from 1.60 g / cm<3> to 1.70 g / cm<3>, the close packing density ranges from 1.80 g / cm<3> to 1.85 g / cm<3>, the average water absorption ranges from 3.3% to 3.6%, and the alkalinity ranges from 2.30% to 2.35%. The high-strength concrete artificial fish reef prepared from the steel slag has the advantages of being large in density, high in strength, coarse in surface, good in stability and high in abrasion resistance and durability; meanwhile, the cost of the concrete is reduced, and a new way is found for utilizing the waste steel slag.

Description

technical field [0001] The invention belongs to the technical field of marine artificial fish reef building materials, and in particular relates to a high-strength steel slag concrete used for building artificial fish reefs. Background technique [0002] Artificial reefs are structures artificially placed in the sea, which can provide a safe place for the habitat, growth and breeding of fish and other aquatic organisms, and create a suitable growth environment. In recent years, my country's coastal fishery industry structure is being adjusted, and the construction of artificial reef fisheries, as an important measure to restore and improve the marine ecological environment, multiply and optimize fishery resources, protect biodiversity, and promote the sustainable and healthy development of the marine economy, has been recognized Widely recognized and achieved good results. However, the marine environment is complex and harsh, and the concrete used to build marine artificial ...

AI Technical Summary

Problems solved by technology

However, the marine environment is complex and harsh, and the concrete used to build artificial fish reefs requires high requirements. Therefore, the structural size and shape of artificial fish reefs are limited by the concrete used to build artificial fish reefs

[0003] At present, foreign artificial reef materials mainly include concrete and steel, of which concrete reefs account for 80%, and steel reefs account for 20%. In recent years, they are developing in the direction of large volume, large porosity and complex structure. The high-rise fish reef structure is more than 70 meters high. At present, the most widely used and successful concrete artificial fish reef is the concrete artificial fish reef. The concrete artificial fish reef is easy to carry out structural design, suitable for manufacturing complex shapes and hole structures, and is conducive to the growth of rocky fish. However, compared with steel structure fish reefs, the overall structural strength of concrete fish reefs is not enough, and the surface hardness and erosion resistance are poor, especially for fish reefs with tall structures. Therefore, it is very important to further improve the strength of concrete fish reefs. necessary

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