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A kind of flame-retardant cement-based permeable crystalline waterproof coating and preparation method thereof

A permeable crystalline waterproof and cement-based technology, applied in the field of building materials, can solve the problems of good flame retardancy, low price, and low price, and achieve the effect of good flame retardancy and low price

Active Publication Date: 2022-02-01
CHINA RAILWAY TUNNEL GROUP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a flame-retardant cement-based permeable crystalline waterproof coating, which has good flame-retardant performance and low price; and solves the problems that steel slag and semi-dry desulfurization ash are difficult to use and the added value is not high

Method used

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  • A kind of flame-retardant cement-based permeable crystalline waterproof coating and preparation method thereof
  • A kind of flame-retardant cement-based permeable crystalline waterproof coating and preparation method thereof
  • A kind of flame-retardant cement-based permeable crystalline waterproof coating and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0056] Taking the preparation of 100g of the product in the present invention as an example, it is prepared from the following raw materials: Portland cement 49.9g, quartz sand 28g, phosphoric acid modified steel slag powder 5g, graphene modified sodium silicate 1.6g, desulfurization ash ~Slaked lime 3g, bentonite~citric acid~isobutyltriethoxysilane 3g, vinyl acetate~VAE rubber powder 9g, ethylenediaminetetraacetic acid~tartaric acid~silicone oil 0.5g. Among them, bentonite ~ citric acid ~ isobutyltriethoxysilane is the core masterbatch.

[0057] The Portland cement mentioned above is grade 42.5 Portland cement. The particle size of the quartz sand is all in the range of 0.5 mm to 3 mm. Phosphoric acid modified steel slag powder is a flame retardant filler. The test shows that the specific surface area of ​​phosphoric acid modified steel slag powder is 400cm 2 / g~450cm 2 In the range of / g, the mass ratio of phosphoric acid and steel slag powder is 4:100. Graphene-modified...

Embodiment 2

[0065] The differences between this embodiment and Embodiment 1 are listed below, and the contents not listed are the same.

[0066] Taking the preparation of 100g of the product in the present invention as an example, it is prepared from the following raw materials: Portland cement 48g, filler quartz sand 30g, phosphoric acid modified steel slag powder 8, graphene modified sodium silicate 1g, desulfurization ash ~ Slaked lime 3.5g, bentonite-citric acid-isobutyltriethoxysilane mixture 1g, vinyl acetate-VAE rubber powder 7g, ethylenediaminetetraacetic acid-tartaric acid-silicone oil 1.5g.

[0067] Phosphoric acid modified steel slag powder is flame retardant filler, the mass ratio of phosphoric acid and steel slag powder is 2:100.

[0068] In the graphene-modified sodium silicate, the mass ratio of graphene and sodium silicate is 2:1000. The molecular formula of sodium silicate is SiO 2 ·nNa 2 O·H 2 O, where the value of n is 3.

[0069] A mixture of semi-dry desulfurizat...

Embodiment 3

[0076] The differences between this embodiment and Embodiment 1 are listed below, and the contents not listed are the same.

[0077] Taking the preparation of 100g of the product of the present invention as an example, it is prepared from the following raw materials: Portland cement 53.3g, filler quartz sand 20g, phosphoric acid modified steel slag powder 9, graphene modified sodium silicate 1.4g, desulfurization ash ~ Slaked lime 5g, bentonite-citric acid-isobutyltriethoxysilane mixture 4g, vinyl acetate-VAE rubber powder 6g, ethylenediaminetetraacetic acid-tartaric acid-silicone oil 1g.

[0078] In the phosphoric acid modified steel slag powder, the mass ratio of phosphoric acid and steel slag powder is 3:100. In the graphene-modified sodium silicate, the mass ratio of graphene and sodium silicate is 3:1000. The molecular formula of sodium silicate is SiO 2 ·nNa 2 O·H 2 O, where the value of n is 2.

[0079] In the mixture of semi-dry desulfurization ash and hydrated li...

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Abstract

The invention discloses a flame-retardant cement-based permeable crystalline waterproof coating, which is prepared from the following raw materials in mass percentage: Portland cement 40%-60%, quartz sand 20%-30%, phosphoric acid modified steel slag powder 5% %~10%, graphene-modified sodium silicate 1%~2%, desulfurization ash~slaked lime mixture 2.5%~5%, bentonite~citric acid~isobutyltriethoxysilane mixture 1%~5%, acetic acid Vinyl ester-VAE rubber powder mixture 5%-10%, ethylenediaminetetraacetic acid-tartaric acid-silicone oil mixture 0.5%-1.5%; the total mass content of the above raw materials is 100%. The flame-retardant cement-based permeable crystalline waterproof coating has good flame-retardant performance and low price; and solves the problems that steel slag and semi-dry desulfurization ash are difficult to use and have low added value.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a flame-retardant cement-based permeable crystalline waterproof coating and its preparation. Background technique [0002] With the continuous development of China's engineering construction, water leakage problems in corresponding tunnels, underground works, houses, etc. are emerging one after another, and the demand for waterproof materials is also increasing. For example, in the field of tunnel construction, there will be higher requirements for the flame retardant performance of waterproof coatings. Similarly, for house construction, if the waterproof coating has good flame retardant performance, the safety of the house will be increased. [0003] At present, the types of waterproof materials in our country are complex, and the waterproof technology is constantly updated. Commonly used waterproof materials include waterproof membranes, waterproof coati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B111/27C04B111/28
CPCC04B28/04C04B2111/28C04B2111/27C04B2201/50C04B2201/10C04B14/06C04B18/142C04B22/165C04B14/022C04B22/00C04B18/062C04B22/064C04B14/104C04B24/06C04B24/42C04B24/2623C04B24/26C04B24/123
Inventor 贺雄飞刘永胜洪侨亨邹翀张迅张浩王刚蒋永星杨朝帅宋妍王春玲牛富生
Owner CHINA RAILWAY TUNNEL GROUP CO LTD