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Geopolymer for outer protective layer of marine concrete and preparation method thereof

A technology for marine concrete and external protection, applied in cement production and other directions, can solve the problems of high cost of waterproof layer, difficult construction, poor waterproofness, etc., and achieve the effects of reducing construction cost, saving cost and simple preparation method.

Active Publication Date: 2020-11-27
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional exterior cement-based material waterproof layer is expensive, difficult to construct, and poor waterproof, which limits its application.

Method used

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  • Geopolymer for outer protective layer of marine concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In this example, 33 parts of paraffin wax emulsion and 49 parts of quartz sand weighed were poured into the mixer, stirred at a slow speed for 100 seconds to obtain a mixture, and then 0.01 parts of water reducer and 0.02 parts of defoamer were added to 10 parts of compound Fully stir in the alkali excitation solution, then use 300W power to ultrasonically oscillate for 0.5 hours to obtain a mixed solution, then add 0.01 parts of acid-treated multi-walled carbon nanotubes to the above mixed solution, and use 300W power to oscillate for 0.5 hours to obtain acidified carbon nanotubes. Nanotube mixed solution, finally add the acidified carbon nanotube mixed solution into the mixture and stir for 150 seconds, then pour, vibrate, and maintain for 28 days under standard curing conditions to obtain the slag base polymerization for the outer protective layer of marine concrete things.

Embodiment 2

[0026] In this example, 33 parts of paraffin wax emulsion and 49 parts of quartz sand weighed were poured into the mixer, stirred at a slow speed for 100 seconds to obtain a mixture, and then 0.01 parts of water reducer and 0.02 parts of defoamer were added to 10 parts of compound Fully stir in the alkali excitation solution, then use 300W power to ultrasonically oscillate for 0.5 hours to obtain a mixed solution, then add 0.01 parts of acid-treated multi-walled carbon nanotubes to the above mixed solution, and use 300W power to oscillate for 0.5 hours to obtain acidified carbon nanotubes. Nanotube mixed solution, finally add the acidified carbon nanotube mixed solution into the mixture and stir for 150 seconds, then pour, vibrate, and maintain for 28 days under standard curing conditions to obtain the slag base polymerization for the outer protective layer of marine concrete things.

Embodiment 3

[0028] In this example, 33 parts of paraffin wax emulsion and 49 parts of quartz sand weighed were poured into the mixer, stirred at a slow speed for 100 seconds to obtain a mixture, and then 0.01 parts of water reducer and 0.02 parts of defoamer were added to 10 parts of compound Fully stir in the alkali excitation solution, then use 300W power to ultrasonically shake for 0.6 hours to obtain a mixed solution, then add 0.01 parts of acid-treated multi-walled carbon nanotubes to the above mixed solution, and use 300W to ultrasonically shake for 0.6 hours to obtain acidified carbon nanotubes. Nanotube mixed solution, finally add the acidified carbon nanotube mixed solution into the mixture and stir for 150 seconds, then pour, vibrate, and maintain for 28 days under standard curing conditions to obtain the slag base polymerization for the outer protective layer of marine concrete things.

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Abstract

The invention discloses a slag-based geopolymer for an outer protective layer of marine concrete and a preparation method of the slag-based geopolymer. The material takes a geopolymer as a base material and is formed by internally doping chemical additives. The geopolymer disclosed by the invention has the characteristics of good waterproof performance, high compressive strength and the like; andin addition, the geopolymer also has relatively high construction performance and durability. The waterproof slag-based geopolymer disclosed by the invention can be widely applied to the field of basic engineering such as marine concrete outer protective layers and the like, and has very high application and popularization values.

Description

technical field [0001] The invention relates to the technical field of geopolymer-based materials, in particular to a geopolymer used for the outer protective layer of marine concrete and a preparation method thereof. Background technique [0002] With the continuous expansion of marine infrastructure, marine concrete has become an urgently needed construction material. Corrosion of steel bars and other damages occur in concrete, which greatly reduces its service life. Therefore, it is necessary to apply a waterproof layer to the marine concrete to improve its waterproofness and durability. However, the traditional exterior cement-based material waterproof layer has high cost, difficult construction, and poor waterproof performance, which limit its application. Geopolymer is a new type of environmentally friendly gelling material produced by using fly ash, slag and other industrial waste silicon-aluminum materials through alkali excitation. The cementitious material has t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B7/14C04B12/00C04B111/24
CPCC04B28/006C04B7/14C04B12/005C04B2111/00017C04B2111/24C04B14/06C04B14/026C04B2103/302C04B2103/50Y02P40/10
Inventor 李杉李发平卢亦焱闫东明蔡新华王思雨
Owner WUHAN UNIV
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