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Preparation method of fishing reef material with high durability

A technology of durability and reef, applied in the field of preparation of high-durability reef materials, can solve the problems of unfavorable algae adhesion and growth, short service life of reef materials, and reduced alkalinity of reef materials, etc. and growth, increase service life, reduce the effect of salt erosion and biocorrosion

Inactive Publication Date: 2017-05-24
吴迪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention: the ordinary Portland cement used in the existing reinforced concrete artificial fish reef has a high pH value, which is unfavorable for the attachment and growth of algae, and due to salt erosion and biological corrosion in the ocean, the fish reef material The defects of short service life and poor durability provide a method for preparing high-durability fish reef materials. The invention first uses converter steel slag and blast furnace slag as raw materials, and adopts the method of cascade mixed grinding to grind the two into mixed powder. , and then mix it with dried and pulverized oyster shell powder to make a composite auxiliary cementitious material, then remove impurities and calcinate the phosphogypsum for activation, and finally combine the obtained activated phosphogypsum with the composite auxiliary cementitious material, ordinary Portland cement After mixing and grinding, mixing with quartz sand, water reducing agent, etc. and casting to form, the high-durability fish reef material can be obtained. The high-durability fish reef material prepared by the present invention reduces the amount of Portland cement and can make the fish reef The alkalinity of the material is greatly reduced, which is conducive to the attachment and growth of aquatic organisms, and through the synergistic effect of steel slag and slag oyster shell powder, the fish reef material is dense during the hydration process, reducing the penetration and erosion of salt, and improving the strength of the material and durability, which is of great significance to promote marine ecological restoration

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] First weigh 20kg of converter steel slag, pass through a 100-mesh sieve, put the sieved converter steel slag in a drying oven, dry it at 105°C to constant weight, and then transfer it to a ball mill for ball milling until the specific surface area is 300m 2 / kg, then add 25kg of blast furnace slag, and continue ball milling until the specific surface area is 400m 2 / kg to obtain the mixed powder; then weigh 15kg of discarded oyster shells, wash them with water, place them in a drying oven, and dry them at 105°C to constant weight, then transfer them to a pulverizer for crushing, and pass through an 80-mesh sieve to obtain Oyster shell powder, weigh 10kg of oyster shell powder, put it into a mixer with 45kg of the above-mentioned mixed powder and mix evenly to obtain a composite auxiliary cementitious material, and set aside; then weigh 8kg of phosphogypsum, place it in a drying oven, and heat it at 105°C Dry to constant weight, put it into a pulverizer and pulverize it,...

example 2

[0020] First weigh 23kg of converter steel slag, pass through a 100-mesh sieve, put the sieved converter steel slag in a drying oven, dry it to constant weight at 108°C, and then transfer it to a ball mill for ball milling until the specific surface area is 350m 2 / kg, then add 28kg of blast furnace slag, and continue ball milling until the specific surface area is 450m 2 / kg to obtain the mixed powder; then weigh 18kg of discarded oyster shells, wash them with water, place them in a drying oven, dry them at 108°C to constant weight, then transfer them to a pulverizer for pulverization, and pass through a 80-mesh sieve to obtain Oyster shell powder, weigh 11kg of oyster shell powder, put it into a mixer with 48kg of the above-mentioned mixed powder, and mix evenly to obtain a composite auxiliary cementitious material, and set aside; then weigh 9kg of phosphogypsum, place it in a drying oven, and place it in a drying oven at 108°C Dry to constant weight, then put it into a pulve...

example 3

[0023] First, weigh 25kg of converter steel slag, pass it through a 100-mesh sieve, put the sieved converter steel slag in a drying oven, dry it at 110°C to constant weight, and then transfer it to a ball mill for ball milling until the specific surface area is 400m 2 / kg, then add 30kg of blast furnace slag, and continue ball milling until the specific surface area is 500 m 2 / kg to obtain the mixed powder; then weigh 20kg of discarded oyster shells, wash them with water, place them in a drying oven, and dry them at 110°C to constant weight, then transfer them to a pulverizer for crushing, and pass through an 80-mesh sieve to obtain Oyster shell powder, weigh 12kg of oyster shell powder, put it into a mixer with 50kg of the above-mentioned mixed powder and mix evenly to obtain a composite auxiliary cementitious material, and set aside; then weigh 10kg of phosphogypsum, place it in a drying oven, and heat it at 110°C Dry to constant weight, put it into a pulverizer and pulveri...

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Abstract

The invention discloses a preparation method of a fishing reef material with high durability and belongs to the technical field of preparation of fishery infrastructures. The preparation method comprises steps as follows: firstly, steelmaking slag and blast furnace slag are taken as raw materials and are ground to be fine with a step mixed grinding method, mixed powder is prepared and then mixed with dried and smashed oyster shell powder, and a composite supplementary cementitious material is prepared; phosphogypsum is subjected to impurity removing, calcining and activating treatment; finally, the obtained activated phosphogypsum is subjected to mixed grinding with the supplementary cementitious material and ordinary Portland cement, a mixture is mixed with quartz sand, a water reducing agent and the like to be subjected to casting molding, and the fishing reef material with high durability can be obtained. According to the prepared fishing reef material with high durability, the use amount of Portland cement is reduced, alkalinity of the fishing reef material can be greatly reduced, and attachment and growth of aquatic organisms are promoted; under the synergistic effect of steel slag, mineral waste residues and the oyster shell powder, the fishing reef material is densified in a hydration process, permeating erosion capacity of salts is reduced, the durability is improved, and the preparation method of the fishing reef material with high durability has the great significance of promoting marine ecological restoration.

Description

technical field [0001] The invention discloses a preparation method of a high-durability fish reef material, which belongs to the technical field of fishery infrastructure preparation. Background technique [0002] Artificial reefs are structures artificially placed in waters. They can not only provide fish with a habitat to avoid wind and waves and natural enemies, but also change the flow of water, promote the growth of algae and other organisms, and then attract fish to come for food. Artificial reefs provide places for habitat, growth and reproduction of aquatic organisms such as algae and fish, and play an important role in restoring the aquatic ecological environment and protecting and multiplying fishery resources. [0003] The mechanism of marine ecological restoration of artificial reefs is through the adsorption of algae by artificial reefs, the filter-feeding effect of attached organisms on reefs, the inhibition of red tide triggers by a large number of organisms ...

Claims

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Application Information

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IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/00758C04B2111/24C04B2201/52C04B18/142C04B18/141C04B14/28C04B22/144C04B14/06C04B2103/302
Inventor 吴迪张潇薛国忠
Owner 吴迪