Self-repairing geopolymer-based permeable crystallization waterproof material and preparation method thereof

A technology of osmotic crystalline waterproofing and geopolymers, applied in cement production, etc., can solve problems such as poor durability, poor toughness, and bulging, and achieve good self-healing performance, good toughness and durability, and high compressive strength.

Active Publication Date: 2022-01-28
SHANGHAI LIYANG ROAD REINFORCEMENT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional waterproof materials often use asphalt, rubber, cement, etc. The former two have problems such as water channeling, delamination, bulging, and poor durability. Cement-based waterproof materials have poor toughness after film formation, and will settle and dislocate with structures Affect the waterproof effect; and asphalt, rubber, and cement waterproof materials have high energy consumption, which will generate a large amount of greenhouse gases during the production process and seriously pollute the environment; they have high strength, good toughness, good durability, compact structure, and self-repairing Strong waterproof material is the future development trend

Method used

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  • Self-repairing geopolymer-based permeable crystallization waterproof material and preparation method thereof
  • Self-repairing geopolymer-based permeable crystallization waterproof material and preparation method thereof
  • Self-repairing geopolymer-based permeable crystallization waterproof material and preparation method thereof

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preparation example Construction

[0038] The invention provides a method for preparing the above-mentioned self-repairing geopolymer-based permeable crystalline waterproof material, comprising the following steps:

[0039] (1) Determine the ratio of water to material to be 0.35-0.55, first prepare the mixed solution A, accurately weigh 20-30 parts of alkaline activator, 2-5 parts of surface modifier, 2-10 parts of silane impregnating agent, and 2 parts of penetrant -3 parts, 0.1-0.5 parts of early strength agent and 1 / 3 of the total water consumption, put it into a planetary mixer, stir until the solute is completely dissolved and the mixture is uniform, after the stirring is completed, put it in a beaker to cool for later use, and mix for later use The temperature of liquid A is equivalent to room temperature.

[0040] (2) Then prepare mixed solution B, accurately weigh 20-50 parts of metakaolin, 10-30 parts of finely ground slag powder, 5-8 parts of fly ash, 3-5 parts of fused silica powder, and 0.5-2 parts ...

Embodiment 1

[0045] A self-healing geopolymer-based permeable crystalline waterproof material provided in this embodiment includes the following parts by weight:

[0046]

[0047] A self-healing geopolymer-based permeable crystalline waterproof material provided in this embodiment, the preparation method thereof comprises the following steps:

[0048] (1) Determine that the water-material ratio is 0.50, first prepare mixed solution A, accurately weigh 20 parts of alkaline activator, 2 parts of surface modifier, 5 parts of silane impregnating agent, 2 parts of penetrating agent, 0.2 part of early strength agent and Put 1 / 3 of the total water consumption into a planetary mixer and stir until the solute is completely dissolved and the mixture is uniform. After the stirring is completed, place it in a beaker to cool it for later use. The temperature of the spare mixture A is equivalent to room temperature.

[0049] (2) Then prepare mixed solution B, accurately weigh 20 parts of metakaolin, ...

Embodiment 2

[0053] A self-healing geopolymer-based permeable crystalline waterproof material provided in this embodiment includes the following parts by weight:

[0054]

[0055] A self-healing geopolymer-based permeable crystalline waterproof material provided in this embodiment, the preparation method thereof comprises the following steps:

[0056] (1) Determine that the water-material ratio is 0.50, first prepare mixed solution A, accurately weigh 20 parts of alkaline activator, 2 parts of surface modifier, 5 parts of silane impregnating agent, 2 parts of penetrating agent, 0.2 part of early strength agent and Put 1 / 3 of the total water consumption into a planetary mixer and stir until the solute is completely dissolved and the mixture is uniform. After the stirring is completed, place it in a beaker to cool it for later use. The temperature of the spare mixture A is equivalent to room temperature.

[0057] (2) Then prepare mixed solution B, accurately weigh 30 parts of metakaolin, ...

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Abstract

The invention discloses a self-repairing geopolymer-based permeable crystallization waterproof material and a preparation method thereof. The self-repairing geopolymer-based permeable crystallization waterproof material is prepared from the following components in parts by weight: 20 to 50 parts of metakaolin, 10 to 30 parts of ground superfine slag powder, 5 to 8 parts of fly ash, 3 to 5 parts of fused silica powder, 20 to 30 parts of an alkaline activator, 2 to 5 parts of a surface modifier, 2 to 10 parts of a silane impregnant, 2 to 3 parts of a penetrant, 0.5 to 2 parts of a water reducing agent, 5 to 15 parts of an expanding agent, 0.1 to 1 part of a retarder and 0.1 to 0.5 part of an early strength agent. The self-repairing geopolymer-based permeable crystallization waterproof material provided by the invention not only has relatively high compressive strength, but also has relatively good toughness, durability and good self-healing performance; and when a waterproof layer or a repaired crack is damaged, the alkali excitation reaction and the active substance are activated again when encountering water and are condensed into a compact crystal, so that a self-repairing effect is achieved.

Description

technical field [0001] The invention relates to a geopolymer waterproof material and a preparation method thereof, in particular to a self-repairing geopolymer-based permeable crystal waterproof material and a preparation method thereof. Background technique [0002] In bridges, tunnels, and road projects, most of the diseases are related to water erosion. Water erosion is slow and long-lasting. Under the influence of water, temperature, humidity and other factors, structures will gradually produce Tiny cracks that are difficult to find, therefore, waterproofing is an urgent task during the construction, maintenance and repair of structures. Traditional waterproof materials often use asphalt, rubber, cement, etc. The former two have problems such as water channeling, delamination, bulging, and poor durability. Cement-based waterproof materials have poor toughness after film formation, and will settle and dislocate with structures Affect the waterproof effect; and asphalt, r...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B7/26C04B111/27C04B111/20
CPCC04B28/006C04B7/243C04B2111/27C04B2201/50C04B2111/20C04B14/06C04B24/42C04B2103/302C04B2103/22C04B2103/10C04B2103/0068C04B24/32C04B22/062C04B12/04Y02P40/10
Inventor 季晓丽郝庆凯李熙
Owner SHANGHAI LIYANG ROAD REINFORCEMENT TECH
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