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Nano spraying quick-setting rubber asphalt waterproof coating for metro tunnels

A technology for quick-setting rubber asphalt and waterproof coatings, which is applied in asphalt coatings, natural rubber coatings, chloroprene homopolymer coatings, etc., and can solve the problems of high bonding strength, elongation at break and tensile properties of waterproof materials The aging resistance is not strong, the construction steps are complicated, etc., to achieve the effect of convenient construction, good mechanical properties and anti-aging performance, and rapid film formation

Inactive Publication Date: 2013-03-13
SHANDONG NORTH CHUANGXIN WATERPROOF SCI & TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional waterproofing membranes used in tunnel construction have many disadvantages
1. The construction steps are complicated and have certain risks; 2. The aging resistance is not strong and the service life is short; 3. The subway tunnel has high requirements on the bonding strength, elongation at break and tensile performance of waterproof materials. Performance is often not balanced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1 : Preparation of coagulant components

[0015] Formula: calcium chloride 99.6%, sodium chloride 0.2%, composite aluminum-iron polymer 0.2%. Dissolve the above-mentioned metal salts in water in proportion, mix them evenly respectively, and prepare them with a concentration of 20%.

Embodiment 2

[0016] Example 2 : Preparation of coagulant components

[0017] Formula: Calcium Chloride 95%, Sodium Chloride 2%, Composite Aluminum Iron Polymer 3%. Dissolve the above-mentioned metal salts in water in proportion, mix well respectively, and prepare to a concentration of 1%.

Embodiment 3

[0018] Example 3 : Preparation of coagulant components

[0019] Formula: Calcium Chloride 97%, Sodium Chloride 1%, Composite Aluminum Iron Polymer 2%. The above-mentioned metal salts are dissolved in water according to the proportion, respectively mixed evenly, and prepared to a concentration of 10%.

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Abstract

The invention relates to a nano spraying quick-setting rubber asphalt waterproof coating for metro tunnels. The coating is a water-based spraying coating prepared by adding a nano accessory ingredient into a liquid rubber asphalt mastic emulsion component which is prepared from modified-emulsified asphalt and high-molecular polymer rubber latex and then mixing the liquid rubber asphalt mastic emulsion component with a coagulating agent component in proportion. A spraying quick-setting modified asphalt waterproof material is obtained by adding the nano accessory ingredient into the product and has better mechanical property and anti-aging property. After the nano accessory ingredient is added, an elastic coating film has strong bonding strength which is 0.9MPa, tensile strength which is greater than 1 MPa, high elastic recovery rate which is greater than 1000%, and excellent anti-aging property, has saline-alkaline tolerance and has the advantages of convenience in construction, high efficiency and quick forming of films. The nano spraying quick-setting rubber asphalt waterproof coating is suitable for metro tunnels and underground waterproof engineering, and can be used for overcoming the defects of the traditional coiled material in the metro tunnel construction and satisfying the high requirement on the waterproof material in the metro tunnel engineering at the same time.

Description

technical field [0001] The invention relates to a waterproof coating, in particular to a nano-spray quick-setting rubber asphalt waterproof coating for subway tunnels. technical background [0002] With the rapid development of my country's urban transportation construction, the application field of subway underground engineering continues to expand. While the subway is convenient for urban citizens to travel, it also puts forward higher requirements for the construction safety and waterproof of the subway. At present, the waterproof materials used in subway tunnels are still mainly traditional synthetic resin waterproof membranes. Traditional waterproofing membranes used in tunnel construction have many disadvantages. 1. The construction steps are complicated and have certain risks; 2. The aging resistance is not strong and the service life is short; 3. The subway tunnel has high requirements on the bonding strength, elongation at break and tensile performance of waterpro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D195/00C09D107/02C09D109/08C09D109/10C09D109/04C09D123/16C09D111/02C09D125/10C09D125/12C09D123/22C09D7/12
Inventor 王荣博辛海洋劳振兴王希孝刘清珅刘方浩
Owner SHANDONG NORTH CHUANGXIN WATERPROOF SCI & TECH GRP CO LTD
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