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A kind of sponge city energy-saving thixotropic degradable mortar

A sponge city and thixotropic technology, applied in the field of building materials, can solve the problems of increasing the cost of mortar preparation, the impact of the impact resistance of the mortar, the impact of the water permeability of the mortar, etc., so as to improve the durability and chemical erosion resistance and high compressive strength. , the effect of increasing strength

Active Publication Date: 2022-02-18
绍兴职业技术学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition of a large number of nanomaterials will not only increase the preparation cost of the mortar, but also have a certain impact on the water permeability of the mortar, and the impact resistance of the mortar will also be affected.

Method used

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  • A kind of sponge city energy-saving thixotropic degradable mortar

Examples

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Effect test

Embodiment 1

[0028] (1) Dissolve ethyl orthosilicate in absolute ethanol, and dropwise add polyvinyl alcohol aqueous solution with a mass concentration of 5%, stir and hydrolyze for 1 hour at room temperature, then filter, and place the filtered precipitate in a muffle furnace after drying Calcination treatment at 400-500°C for 30 minutes in an air atmosphere to prepare porous silica; wherein, the mass ratio of tetraethyl orthosilicate to polyvinyl alcohol is 10:0.0035;

[0029](2) Mix 10 parts of acrylamide, 1 part of N,N-methylene acrylamide and deionized water, then add 0.05 parts of triethanolamine as a catalyst, add 0.01 parts of ammonium persulfate and react at 30-40°C for 1 hour, After the reaction, cool to room temperature, add 5 parts of the porous silicon oxide prepared above to the reaction solution, stir at room temperature for 2 hours, filter, and wash the obtained precipitate with deionized water until neutral, and dry to obtain a polyacrylamide coating. Covered porous silica...

Embodiment 2

[0034] (1) Dissolve ethyl orthosilicate in absolute ethanol, and dropwise add polyvinyl alcohol aqueous solution with a mass concentration of 5%, stir and hydrolyze for 5 hours at room temperature, then filter, and place the filtered precipitate in a muffle furnace after drying Calcination treatment at 400-500°C for 30 minutes in an air atmosphere to prepare porous silica; wherein, the mass ratio of ethyl orthosilicate to polyvinyl alcohol is 10:0.0065;

[0035] (2) Mix 10 parts of acrylamide, 3 parts of N,N-methylene acrylamide and deionized water, then add 0.05 parts of triethanolamine as a catalyst, add 0.01 parts of ammonium persulfate and react at 30-40°C for 1 hour, After the reaction, cool to room temperature, add 5 parts of the porous silicon oxide prepared above to the reaction solution, stir at room temperature for 2 hours, filter, and wash the obtained precipitate with deionized water until neutral, and dry to obtain a polyacrylamide coating. Covered porous silica; ...

Embodiment 3

[0040] (1) Dissolve ethyl orthosilicate in absolute ethanol, and dropwise add polyvinyl alcohol aqueous solution with a mass concentration of 5%, stir and hydrolyze for 2 hours at room temperature, then filter, and place the filtered precipitate in a muffle furnace after drying Calcination treatment at 400-500°C for 30 minutes in an air atmosphere to prepare porous silica; wherein, the mass ratio of tetraethyl orthosilicate to polyvinyl alcohol is 10:0.004;

[0041] (2) Mix 10 parts of acrylamide, 1.5 parts of N,N-methylene acrylamide and deionized water, then add 0.05 parts of triethanolamine as a catalyst, add 0.01 parts of ammonium persulfate and react at 30-40°C for 1 hour, After the reaction, cool to room temperature, add 5 parts of the porous silicon oxide prepared above to the reaction solution, stir at room temperature for 2 hours, filter, and wash the obtained precipitate with deionized water until neutral, and dry to obtain a polyacrylamide coating. Covered porous si...

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Abstract

The invention provides a sponge city energy-saving thixotropic degradable mortar, which comprises the following components in parts by weight: 50-80 parts of cement, 60-90 parts of machine-made sand, 2-4 parts of nano filler, and 103 parts of porous ceramsite , 0.01-0.06 parts of water reducing agent; the mortar uses cement as the cementitious material, adding nano-fillers with a composite structure, the inner layer of the nano-fillers is porous nano-silica, and the surface is aminated and coated with a layer of polypropylene amide hydrogel, and finally deposit aligned titanium oxide nanorods on the surface of the polyacrylamide hydrogel; the nanofiller improves the anti-pollution and impact resistance of the mortar to a certain extent. The present invention also adds porous ceramsite to the mortar, and the addition of the porous ceramsite endows the mortar with super-strength and high water permeability.

Description

Technical field: [0001] The invention relates to the field of building materials, in particular to a sponge city energy-saving thixotropic degradable mortar. Background technique: [0002] In recent years, heavy rain disasters have occurred frequently in cities in my country, and traditional urban roads and drainage facilities generally have problems of high drainage pressure and serious loss of rainwater resources. The urban waterlogging caused by it has seriously affected people's lives. In order to deal with the problem of urban waterlogging, it is necessary to explore a new model of ideal urban development, thus proposing the concept of "sponge city". The essence of sponge city construction is to change the traditional concept of urban construction and development, follow nature, and live in harmony with nature in a low-impact development model, so as to realize the coordinated development of people, cities and their resources and environment. Harmonious coexistence of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/08C04B28/04C04B38/00C04B33/135C04B33/13C04B33/04C04B111/40
CPCC04B28/04C04B38/009C04B33/1355C04B33/13C04B33/04C04B2111/40C04B2111/00284C04B2201/50Y02P40/60
Inventor 汤薇蒋晓杰沈书增祝张法童仙敏
Owner 绍兴职业技术学院
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