Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High polymer modified asphalt waterproof membrane for railway concrete bridge deck and preparation method

A technology of asphalt waterproofing membrane and polymer modification, applied in asphalt coatings, bridges, bridge parts, etc., can solve the problems of affecting the quality of the membrane, reducing production efficiency, good sealing, etc., and improving high-temperature rheological properties , the effect of reducing temperature sensitivity

Active Publication Date: 2021-01-19
河南华瑞兴业防水科技有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] After modifying asphalt by SBS, the performance of the asphalt system is improved, and the viscosity is also greatly increased, which reduces the production efficiency. Adding a large amount of SBS will make the asphalt rubber have high viscosity, good sealing performance, and poor air permeability, which is not easy to be mixed with the rubber. The overflow of gas causes a large number of "pit spots" on the surface of the membrane, and holes appear inside the asphalt coating layer, which seriously affects the quality of the membrane. At present, the preparation process of most waterproof membranes on the market is relatively complicated, and the effect of waterproof membranes is not ideal.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High polymer modified asphalt waterproof membrane for railway concrete bridge deck and preparation method
  • High polymer modified asphalt waterproof membrane for railway concrete bridge deck and preparation method
  • High polymer modified asphalt waterproof membrane for railway concrete bridge deck and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1: as figure 1 Shown, a kind of high polymer modified asphalt waterproof membrane material for railway concrete bridge deck, including base layer, the top and bottom of base base layer are coated with coating layer, and the outermost part of coating layer is coated with isolation layer, that is, on the base layer The upper and lower layers of the base layer are all coated with a coating layer. After bonding, an isolation layer is coated on the outermost of the upper coating layer and the lower coating layer. The base layer is a filament polyester tire, and the isolation layer is fine sand.

[0041] The coating layer is composed of the following raw materials: No. 10 asphalt 15 Kg, AH-70 asphalt 28 Kg, softening oil 12 Kg, SBS-1401 5 Kg, maleic anhydride grafted polypropylene wax 1 Kg, rubber powder 9 Kg, talcum powder 16 Kg.

[0042] The softening oil is a base lubricating oil with a pour point less than -20°C and a flash point greater than 230°C.

[0043] ...

Embodiment 2

[0055] Embodiment 2: as figure 1 Shown, a kind of high polymer modified asphalt waterproof membrane material for railway concrete bridge deck, including base layer, the top and bottom of base base layer are coated with coating layer, and the outermost part of coating layer is coated with isolation layer, that is, on the base layer The upper and lower layers of the base layer are all coated with a coating layer. After bonding, an isolation layer is coated on the outermost of the upper coating layer and the lower coating layer. The base layer is a filament polyester tire, and the isolation layer is fine sand.

[0056] The coating layer is composed of the following raw materials: No. 10 asphalt 25 Kg, AH-90 asphalt 48 Kg, softening oil 16 Kg, SBS-4403 9 Kg, maleic anhydride grafted polypropylene wax 4 Kg, rubber powder 4 Kg, talcum powder 25 Kg.

[0057] The softening oil is an aromatic oil with a pour point less than -20°C and a flash point greater than 230°C.

[0058] Rubber ...

Embodiment 3

[0070] Embodiment 3: as figure 1 Shown, a kind of high polymer modified asphalt waterproof membrane material for railway concrete bridge deck, including base layer, the top and bottom of base base layer are coated with coating layer, and the outermost part of coating layer is coated with isolation layer, that is, on the base layer The upper and lower layers of the base layer are all coated with a coating layer. After bonding, an isolation layer is coated on the outermost of the upper coating layer and the lower coating layer. The base layer is a filament polyester tire, and the isolation layer is fine sand.

[0071] The coating layer is composed of the following raw materials: No. 10 asphalt 20 Kg, AH-70 asphalt 35 Kg, softening oil 14 Kg, SBS-LG411 7 Kg, maleic anhydride grafted polypropylene wax 2.5 Kg, rubber powder 12 Kg, talcum powder 20 Kg.

[0072] The softening oil is base lubricating oil or aromatic oil with a pour point less than -20°C and a flash point greater than...

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

PropertyMeasurementUnit
pour pointaaaaaaaaaa
flash pointaaaaaaaaaa
softening pointaaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of building coiled materials, and in particular to a high-polymer modified asphalt waterproof coiled material for a railway concrete bridge deck. The coiled materialcomprises a reinforcement base layer; the top and the bottom of the reinforcement base layer are both coated with a coating layer; and the outermost part of each coating layer is coated with an isolation layer. The coating layer is composed of the following raw materials in parts by weight: 15-25 parts of asphalt No.10, 28-48 parts of AH asphalt, 12-16 parts of softening oil, 5-9 parts of styrene-butadiene-styrene (SBS), 1-4 parts of maleic anhydride grafted polypropylene wax, 9-14 parts of rubber powder and 16-25 parts of talcum powder. According to the invention, the maleic anhydride grafted polypropylene wax is used as a chemical modifier, so that stability of the whole formula is improved, and the effect of the waterproof coiled material is more ideal.

Description

technical field [0001] The invention relates to the field of construction coils, in particular to a polymer-modified asphalt waterproof coil for railway concrete bridge decks and a preparation method thereof. Background technique [0002] Polymer modified asphalt waterproofing membranes, especially SBS modified asphalt waterproofing membranes, have been introduced into China from abroad in the 1980s. Because of their superior waterproof performance, they have developed rapidly and occupied a dominant position in the market. They are the current domestic application The widest range of waterproofing materials. [0003] SBS is basically in a physically dispersed state in asphalt, and is distributed in the asphalt medium as fine particles, showing a two-phase structure. A large number of studies have shown that the compatibility between SBS and asphalt depends on the content of aromatic and saturated components in asphalt. When the modified asphalt is in the solidified state,...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C09D195/00C09D191/00C09D121/00C09D153/02C09D7/61E01D19/08
CPCC08L2201/08C08L2205/025C08L2205/035C09D195/00C09D7/61E01D19/083C08L75/00C08L91/00C08L53/02C08L51/06C08L21/00C08K3/34
Inventor 赵春华欧阳宗将
Owner 河南华瑞兴业防水科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com