Air-entraining composite concrete waterproof agent and preparation method thereof

A technology of concrete waterproofing agent, phenyl salicylate, which is applied in the field of building materials and can solve problems such as single effect, complex formula, and poor waterproofing

Pending Publication Date: 2016-07-27
WENDENG LANDAO ARCHITECTURAL ENG CO LTD
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, existing concrete air-entraining agents have complex formu

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] 20 parts of tetraethyl orthosilicate; 3 parts of sodium stearate; 5 parts of phenyl salicylate; 5 parts of polyvinyl alcohol; 0.5 parts of alum; 1 part of silk powder; 4 parts of sodium fluorosilicate; dodecyl 1 part of sodium sulfonate; 8 parts of propylene glycol; 10 parts of silicon dioxide; 4 parts of bentonite; 13 parts of rosin; 2 parts of sodium alginate; 1.5 parts of sodium hydroxide; 0.2 parts of sulfuric acid. According to the preparation process, the composite silicon waterproof agent is obtained.

[0011] The bleeding rate ratio of the obtained product was 49, the 7-day compressive strength was 114, and the 28-day compressive strength was 102. The penetration ratio is 28%. The 48h water absorption ratio was 63%, and the 28-day shrinkage rate was 122%.

Embodiment 2

[0013] 40 parts of tetraethyl orthosilicate; 3 parts of sodium stearate; 5 parts of phenyl salicylate; 5 parts of polyvinyl alcohol; 0.5 parts of alum; 1 part of silk powder; 4 parts of sodium fluorosilicate; dodecyl 1 part of sodium sulfonate; 8 parts of propylene glycol; 10 parts of silicon dioxide; 4 parts of bentonite; 13 parts of rosin; 2 parts of sodium alginate; 1.5 parts of sodium hydroxide; 0.2 parts of sulfuric acid. According to the preparation process, the composite silicon waterproof agent is obtained.

[0014] The bleeding rate ratio of the obtained product is 40, the 7-day compressive strength is 130, and the 28-day compressive strength is not 112. The penetration ratio is 25%. The 48h water absorption ratio is 65%, and the 28-day shrinkage rate is 125%.

Embodiment 3

[0016] 40 parts of tetraethyl orthosilicate; 3 parts of sodium stearate; 15 parts of phenyl salicylate; 5 parts of polyvinyl alcohol; 0.5 part of alum; 1 part of silk powder; 4 parts of sodium fluorosilicate; dodecyl 1 part of sodium sulfonate; 8 parts of propylene glycol; 10 parts of silicon dioxide; 4 parts of bentonite; 13 parts of rosin; 2 parts of sodium alginate; 1.5 parts of sodium hydroxide; 0.2 parts of sulfuric acid. According to the preparation process, the composite silicon waterproof agent is obtained.

[0017] The bleeding rate ratio of the obtained product was 41, the 7-day compressive strength was 138, and the 28-day compressive strength was 117. The penetration ratio is 21%. The 48h water absorption ratio is 60%, and the 28-day shrinkage rate is 115%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an air-entraining composite concrete waterproof agent and a preparation method thereof. The air-entraining composite concrete waterproof agent comprises the following components: tetraethyl orthosilicate, sodium stearate, phenyl salicytate, polyvinyl alcohol, alum, silk white powder, sodium fluosilicate, sodium dodecyl sulfate, propylene glycol, silicon dioxide, bentonite, rosin, sodium alginate, sodium hydroxide and sulfuric acid. Micro-bubbles can be uniformly introduced; and the waterproof agent has good air entraining property and bubble stability, obviously improves the anti-seepage and waterproof property, enhances the compactibility and compressive strength, improves the working performance of concrete, enhances the concrete durability, has the characteristics of safety and no toxicity or corrosion and is suitable for the concrete requiring certain air content in ports, wharfs, water conservancy projects, highway pavements, freeze-thaw resistance, corrosion resistance, anti-seepage projects and the like.

Description

Technical field [0001] The invention relates to the field of building materials, in particular to an air-entraining composite concrete waterproofing agent. Background technique [0002] With the development of the construction industry, impermeability and waterproofing have become an important practical function of buildings. Traditional concrete waterproofing agents have problems such as large amount of water-repellent, difficult to maintain, and high total amount of alkali. There are phenomena such as pumping, shrinkage, cracking and leakage during use. Mainly organic silicon and inorganic aluminum salts. Organosilicon waterproofing agent realizes waterproofing by forming a hydrophobic molecular layer, which has a single function and cannot compensate for the shrinkage and cracks of concrete, which affects the waterproof performance of concrete. The waterproof mechanism of inorganic aluminum salt waterproofing agent is to form dense concrete to achieve impermeability and wate...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C04B24/38
CPCC04B40/0039C04B2103/304C04B2103/65C04B24/045C04B24/04C04B24/2623C04B22/142C04B22/126C04B24/16C04B24/02C04B22/06C04B22/08C04B24/34C04B24/38C04B22/141
Inventor 李文博
Owner WENDENG LANDAO ARCHITECTURAL ENG CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap