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A water-based permeable crystalline waterproof material

A waterproof material and a technology of osmotic crystallization, which is applied in the field of waterproofing agent and its preparation, can solve the problems of weakening the effect of protecting steel bars, etc., and achieve the effect of simple construction method, large penetration depth and good frost resistance

Active Publication Date: 2020-03-27
KELO STRUCTURE SELF WATERPROOF TECH SHENZHEN CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the prior art is that these raw materials are all powders, which need to be uniformly dispersed in water before use, which brings inconvenience to the construction process, and if the powder is not uniformly dispersed, the active substance It is difficult to penetrate into the interior of the concrete and form a good filling of the cracks in the concrete, thus weakening the effect of protecting the steel bars

Method used

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  • A water-based permeable crystalline waterproof material
  • A water-based permeable crystalline waterproof material
  • A water-based permeable crystalline waterproof material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1: A water-based osmotic crystalline waterproof material, prepared by the following process: Stir the following raw materials in parts by weight evenly and heat to 50-60°C, stir and mix for 2-3 hours, and seal and fill after natural cooling. get the finished product;

[0024] Sodium silicate aqueous solution: 70%;

[0025] Chelating agent: 8%;

[0026] Ultrafine fly ash: 3%;

[0027] Hydroxyplatinic acid: 0.4;

[0028] Ethyl orthosilicate: 0.6%;

[0029] Defoamer: 0.3%;

[0030] Water 17.7%;

[0031] Among them, the defoaming agent is emulsified silicone oil; the chelating agent is triethanolamine; the average particle size of ultrafine fly ash is 0.5 μm-1.0 μm; the molecular formula of sodium silicate is SiO 2 ·nNa 2 O·H 2 O, the numerical value of n is 2.5; Sodium silicate aqueous solution adopts following process to prepare:

[0032] S1: Selection of raw materials: 200-500 mesh quartz sand, the content of silicon dioxide in the quartz sand is greater...

Embodiment 2-6

[0035] Example 2-6: A water-based osmotic crystalline waterproof material, the difference from Example 1 is that silicic acid

[0036] The consumption of sodium aqueous solution is different, and the content of water changes correspondingly, and the concrete formula quantity sees table 1, and the waterproof material of embodiment 1-6

[0037] Sodium silicate (SiO 2 2.5Na 2 O·H 2 The mass fractions of O) are 21.17%, 18.14%, 19.64%, 22.67%, 24.18%, 25.69%, respectively.

[0038] The formula table of table 1 embodiment 1-6

[0039]

Embodiment 7-16

[0040] Examples 7-16: A water-based osmotic crystalline waterproof material. The difference from Example 1 is that the amounts of each formula are different, and the water content changes accordingly. See Table 2 for specific formula amounts.

[0041] The formula table of table 2 embodiment 7-16

[0042]

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Abstract

The invention discloses a water-based permeable crystallization type waterproof material. The water-based permeable crystallization type waterproof material comprises the following raw materials in percentages by mass: 18-26% of sodium silicate, 2-12% of a chelating agent, 1-6% of ultra-fine flyash, 0.1-1% of dihydrogen hexahydroxyplatinate, 0.2-1.2% of tetraethylortho silicate (a curing agent) and the balance of water and an auxiliary acceptable in the waterproof material. The chelating agent is bis(fatty alcohol amine) or tri(fatty alcohol amine); and the molecular formula of the sodium silicate is SiO2.nNa2O.H2O, and the value range of n is 2-3. The waterproof material is liquid, has good permeability, can permeate in concrete, and fills fractures of the concrete well.

Description

technical field [0001] The invention relates to the technical field of waterproofing agent and its preparation, in particular to a water-based permeable crystalline waterproofing material. Background technique [0002] Most modern buildings and structures use reinforced concrete structures as the main body. During the use of concrete, it is easily affected by the physical, chemical and biological effects of the surrounding environment, causing certain components in the concrete to undergo reaction denaturation, dissolution, crystallization, expansion and matrix cracking. etc., resulting in the decline of concrete performance, such as cracks, peeling, spalling, honeycomb, water leakage, exposed steel bars, steel bar corrosion, insufficient bearing capacity, etc., which not only directly reduce the performance of concrete, but more importantly, it will accelerate the corrosion of steel bars in concrete . At present, most of the most commonly used waterproof materials are surf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/26C04B111/27C04B111/72
CPCC04B28/26C04B2111/27C04B2111/72C04B2201/50C04B24/122C04B18/08C04B22/082C04B24/42
Inventor 杨飞
Owner KELO STRUCTURE SELF WATERPROOF TECH SHENZHEN CO LTD
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