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

Abstract

The invention discloses a slag base polymer used for the outer protective layer of marine concrete and a preparation method thereof. The material uses geopolymer as a base material and is composed of chemical additives. The geopolymer of the invention has the characteristics of good waterproof performance, high compressive strength, etc., and in addition, the geopolymer also has high construction performance and durability. The waterproof slag-based polymer of the invention can be widely used in basic engineering fields such as the outer protective layer of marine concrete, and has high application and popularization value.

Description

technical field

[0001] The invention relates to the technical field of geopolymer-based materials, in particular to a slag-based polymer 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 materi...

Examples

Embodiment 1

[0024] In this example, 33 parts of slag and 49 parts of quartz sand weighed are poured into the mixer, stirred at a slow speed for 100 seconds to obtain a mixture, and then 0.01 part of water reducer and 0.02 part of defoamer are added to 10 parts of compound alkali Fully stir in the 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 ultrasonically oscillate for 0.5 hours to obtain acidified carbon nanotubes. tube mixed solution, and finally the acidified carbon nanotube mixed solution was added to the mixture and stirred for 150 seconds, then poured, vibrated, and cured under standard curing conditions for 28 days to obtain the slag-based polymer used for the outer protective layer of marine concrete .

Embodiment 2

[0026] In this example, 33 parts of slag and 49 parts of quartz sand weighed are poured into the mixer, stirred at a slow speed for 100 seconds to obtain a mixture, and then 0.01 part of water reducer and 0.02 part of defoamer are added to 10 parts of compound alkali Fully stir in the excitation solution, then use 300W power to ultrasonically oscillate 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 power to ultrasonically oscillate for 0.6 hours to obtain acidified carbon nanotubes. tube mixed solution, and finally the acidified carbon nanotube mixed solution was added to the mixture and stirred for 150 seconds, then poured, vibrated, and cured under standard curing conditions for 28 days to obtain the slag-based polymer used for the outer protective layer of marine concrete .

Embodiment 3

[0028] In this example, 36 parts of slag and 46 parts of quartz sand weighed are poured into the mixer, stirred at a slow speed for 100 seconds to obtain a mixture, and then 0.02 parts of water reducer and 0.01 part of defoamer are added to 10 parts of compound alkali Fully stir in the 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 ultrasonically oscillate for 0.5 hours to obtain acidified carbon nanotubes. tube mixed solution, and finally the acidified carbon nanotube mixed solution was added to the mixture and stirred for 150 seconds, then poured, vibrated, and cured under standard curing conditions for 28 days to obtain the slag-based polymer used for the outer protective layer of marine concrete .

technical field

[0001] The invention relates to the technical field of geopolymer-based materials, in particular to a slag-based polymer 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 materi...

Examples

Embodiment 1

[0024] In this example, 33 parts of slag and 49 parts of quartz sand weighed are poured into the mixer, stirred at a slow speed for 100 seconds to obtain a mixture, and then 0.01 part of water reducer and 0.02 part of defoamer are added to 10 parts of compound alkali Fully stir in the 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 ultrasonically oscillate for 0.5 hours to obtain acidified carbon nanotubes. tube mixed solution, and finally the acidified carbon nanotube mixed solution was added to the mixture and stirred for 150 seconds, then poured, vibrated, and cured under standard curing conditions for 28 days to obtain the slag-based polymer used for the outer protective layer of marine concrete .

Embodiment 2

[0026] In this example, 33 parts of slag and 49 parts of quartz sand weighed are poured into the mixer, stirred at a slow speed for 100 seconds to obtain a mixture, and then 0.01 part of water reducer and 0.02 part of defoamer are added to 10 parts of compound alkali Fully stir in the excitation solution, then use 300W power to ultrasonically oscillate 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 power to ultrasonically oscillate for 0.6 hours to obtain acidified carbon nanotubes. tube mixed solution, and finally the acidified carbon nanotube mixed solution was added to the mixture and stirred for 150 seconds, then poured, vibrated, and cured under standard curing conditions for 28 days to obtain the slag-based polymer used for the outer protective layer of marine concrete .

Embodiment 3

[0028] In this example, 36 parts of slag and 46 parts of quartz sand weighed are poured into the mixer, stirred at a slow speed for 100 seconds to obtain a mixture, and then 0.02 parts of water reducer and 0.01 part of defoamer are added to 10 parts of compound alkali Fully stir in the 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 ultrasonically oscillate for 0.5 hours to obtain acidified carbon nanotubes. tube mixed solution, and finally the acidified carbon nanotube mixed solution was added to the mixture and stirred for 150 seconds, then poured, vibrated, and cured under standard curing conditions for 28 days to obtain the slag-based polymer used for the outer protective layer of marine concrete .

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