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Method for preparing artificial pebbles by dredging soil without burning

A technology of cobblestone and dredged soil is applied in the field of preparing artificial cobblestone by dredging soil-free burning method, which can solve the problems of not found patent publications and the like, and achieve the effects of compact internal structure, improved strength and simple operation.

Active Publication Date: 2020-12-25
TIANJIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Through the search, no patent publications related to the patent application of the present invention were found

Method used

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  • Method for preparing artificial pebbles by dredging soil without burning
  • Method for preparing artificial pebbles by dredging soil without burning
  • Method for preparing artificial pebbles by dredging soil without burning

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A method for preparing artificial inorganic type cobblestones by dredging soil without burning method, the steps are:

[0043] ⑴Raw material preparation: screen the dredged soil, cement, mineral powder, fly ash, quicklime, and phosphogypsum with a 1mm standard sieve, and take materials smaller than 1mm with a moisture content of less than 10%;

[0044] ⑵Four kinds of material preparation:

[0045] ① Unburned ceramsite shell materials, the weight percentages of the constituent materials are: cement 15-25%, mineral powder 60-75%, fly ash 5-15%, quicklime 1-5%, phosphogypsum 1-5% %, carbon fiber 0.5~1.0%;

[0046] ②Cobblestone core and shell materials, the weight percentages of the constituent materials are: cement 20-30%, mineral powder 55-70%, fly ash 5-15%, quicklime 1-5, phosphogypsum 1-5%;

[0047] ③ cobblestone shell material, the weight percentages of the constituent materials are: cement 50-70%, glass powder 30-50%, nano-SiO 2 0.2~1.0%, dispersible rubber powde...

Embodiment 2

[0057] A method for preparing artificial inorganic type cobblestones by dredging soil without burning method, the steps are:

[0058] ⑴Raw material preparation: screen the dredged soil, cement, mineral powder, fly ash, quicklime, and phosphogypsum with a 1mm standard sieve, and take materials smaller than 1mm with a moisture content of less than 10%;

[0059] ⑵Four kinds of material preparation:

[0060] ① Unburned ceramsite shell materials, the weight percentages of the constituent materials are: cement 15-25%, mineral powder 60-75%, fly ash 5-15%, quicklime 1-5%, phosphogypsum 1-5% %, glass fiber 0.2~0.5%;

[0061] ②Cobblestone core and shell materials, the weight percentages of the constituent materials are: cement 20-30%, mineral powder 55-70%, fly ash 5-15%, quicklime 1-5, phosphogypsum 1-5%;

[0062] ③ cobblestone shell material, the weight percentages of the constituent materials are: cement 50-70%, glass powder 30-50%, nano-SiO 2 0.2~1.0%, dispersible rubber powder...

Embodiment 3

[0073] A method for preparing artificial composite cobblestones by dredging soil without burning method, the steps are:

[0074] ⑴Raw material preparation: screen the dredged soil, cement, mineral powder, fly ash, quicklime, and phosphogypsum with a 1mm standard sieve, and take materials smaller than 1mm with a moisture content of less than 10%;

[0075] ⑵Four kinds of material preparation:

[0076] ① Unburned ceramsite shell materials, the weight percentages of the constituent materials are: cement 15-25%, mineral powder 60-75%, fly ash 5-15%, quicklime 1-5%, phosphogypsum 1-5% %, carbon fiber 0.5~1.0%;

[0077] ②Cobblestone core and shell materials, the weight percentages of the constituent materials are: cement 20-30%, mineral powder 55-70%, fly ash 5-15%, quicklime 1-5, phosphogypsum 1-5%;

[0078] ③ cobblestone shell material, the weight percentages of the constituent materials are: cement 50-70%, glass powder 30-50%, nano-SiO 2 0.2~1.0%, dispersible rubber powder 0.2...

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Abstract

The invention relates to a method for preparing artificial pebbles by dredging soil without burning method. The steps are: (1) preparation of raw materials; (2) preparation of four kinds of materials; (3) preparation of high-strength non-burning ceramsite; (4) preparation of cobblestone core; ; ⑹ polishing; ⑺ curing; ⑻ finished product. The invention uses dredged soil as raw material to prepare artificial cobblestone with core-shell structure, which can not only broaden the application scope of resource utilization of dredged soil, but also provides a preparation method for artificial cobblestone. It can meet the decorative effect of cobblestone.

Description

technical field [0001] The invention belongs to the technical field of dredging industry and building materials, and relates to the environment-friendly utilization of dredged bottom mud, in particular to a method for preparing artificial pebbles from dredged soil without burning. Background technique [0002] Every year, countries around the world, including my country, carry out large-scale dredging and dredging projects, which generate hundreds of millions of tons of dredged sediment. Therefore, the resource utilization of dredged sediment has become an urgent problem to be solved. [0003] At present, the resource utilization direction of dredged soil obtained by dehydration of dredged sediment is mainly to use it as raw material to prepare building materials. The most researched is to prepare ceramsite by sintering method, and the process is mature, which has been widely used in many building aggregates. Applying dredged sediment to building materials not only solves th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/02C04B111/54
CPCC04B28/02C04B2201/50C04B2201/20C04B2111/542C04B18/0436C04B18/12C04B18/08C04B22/064C04B22/144C04B14/386C04B14/22C04B14/06C04B2103/0057B24B1/00C04B20/12C04B28/04C04B28/26Y02W30/91C04B18/021C04B20/1077C04B20/126C04B20/1085C04B20/0076C04B14/42C04B14/062C04B24/02C04B24/10C04B2103/54C04B38/00
Inventor 吴燕李娜薛凯茹
Owner TIANJIN UNIV OF SCI & TECH