Method for paving combination paving layer for tunnel road surface

A paving layer and road surface technology, applied in the field of building materials, can solve the problems of life safety, poor driving comfort, low sound absorption coefficient, etc., achieve good isolation effect, improve anti-skid ability, and good fire performance

Active Publication Date: 2010-03-17
WUHAN MUNICIPAL CONSTR GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, traffic design codes require that cement concrete pavement be used for tunnel pavement. Due to the dense structure of concrete pavement pavement and relatively low sound absorption coefficient, the noise pollution generated by vehicles driving on cement concrete pavement is very serious. In addition, the rigid

Method used

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  • Method for paving combination paving layer for tunnel road surface
  • Method for paving combination paving layer for tunnel road surface
  • Method for paving combination paving layer for tunnel road surface

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0073] Example 1:

[0074] Such as figure 1 As shown, a paving method of a combined paving layer of a tunnel pavement includes the following steps:

[0075] 1) Preparation of flame retardant high viscosity modified asphalt:

[0076] The flame-retardant high-viscosity modified asphalt is composed of styrene-butadiene-styrene block copolymer (SBS), tackifier, compatibilizer, stabilizer, flame-retardant smoke suppressant and matrix asphalt. The quality of each component The ratio is matrix asphalt: styrene-butadiene-styrene block copolymer: tackifier: compatibilizer: stabilizer: flame retardant and smoke suppressant = 100: 7.0: 1.5: 6.0: 0.5: 7.0; After the base pitch is melted, add styrene-butadiene-styrene block copolymer, stir at 150℃ for 10min at low speed, and then pass through a high-speed shearing machine, stir at 160℃ for 45min at high speed at 3000r / min, Then place it at 140℃ for 60min to fully swell it, and finally add the tackifier, compatibilizer, stabilizer and flame ret...

Example Embodiment

[0112] Example 2:

[0113] A method for paving a combined paving layer of a tunnel road surface, which includes the following steps:

[0114] 1) Preparation of flame retardant high viscosity modified asphalt:

[0115] The flame-retardant high-viscosity modified asphalt is composed of styrene-butadiene-styrene block copolymer (SBS), tackifier, compatibilizer, stabilizer, flame-retardant smoke suppressant and matrix asphalt. The quality of each component The ratio is matrix asphalt: styrene-butadiene-styrene block copolymer: tackifier: compatibilizer: stabilizer: flame retardant and smoke suppressant = 100:11.2:3.0:13.9:1.2:11.6; After the base pitch is melted, add styrene-butadiene-styrene block copolymer, stir at 170℃ for 15min at low speed, then pass through a high-speed shearing machine, stir at 180℃ for 60min at high speed, rotate at 4000r / min, Then place it at 150℃ for 90min to fully swell it, and finally add the tackifier, compatibilizer, stabilizer and flame retardant and smo...

Example Embodiment

[0151] Example 3:

[0152] A method for paving a combined paving layer of a tunnel road surface, which includes the following steps:

[0153] 1) Preparation of flame retardant high viscosity modified asphalt:

[0154] The flame-retardant high-viscosity modified asphalt is composed of styrene-butadiene-styrene block copolymer (SBS), tackifier, compatibilizer, stabilizer, flame-retardant smoke suppressant and matrix asphalt. The quality of each component The ratio is matrix asphalt: styrene-butadiene-styrene block copolymer: tackifier: compatibilizer: stabilizer: flame retardant and smoke suppressant = 100:5.2:1.0:5.0:0.2:6.5; After the base pitch is melted, add styrene-butadiene-styrene block copolymer, stir at 150℃ for 10min at low speed, and then pass through a high-speed shearing machine, stir at 160℃ for 45min at high speed at 3000r / min, Then place it at 140℃ for 60min to fully swell it, and finally add the tackifier, compatibilizer, stabilizer and flame retardant and smoke supp...

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Abstract

The invention belongs to the field of building materials and particularly relates to a method for paving a pavement paving layerfor a tunnel road surface. The method is characterized by comprising thefollowing steps: firstly, preparing flame retardant high-viscosity modified asphalt which is prepared from styrene-butadiene-styrene block copolymer, tackifier, compatibilizer, stabilizer, flame retardant and smoke suppressant and base asphalt; secondly, cleaning the surface of a concrete layer 1 of the tunnel surface; thirdly, paving and spreading a bottom surface adhesive layer, i.e. spreadingand paving modified emulsion asphalt on the concrete layer 1 of the cleaned tunnel surface by utilizing an asphalt spreading and paving vehicle to obtain a bottom surface bonding layer 2, wherein thespreading and paving quantity of the modified emulsion asphalt is 0.8-1.0kg/m<2>; fourthly, paving a mid-surface layer which can highly resist rutting; fifthly, paving a waterproof and oilproof bonding layer; and sixthly, paving a fireproof, noise reducing and anti-slip top surface layer. The combination paving layer obtained from the method has the characteristics of excellent pavement performance, fireproofness, slip resistance and noise reduction.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a paving method for a tunnel pavement pavement layer. Background technique [0002] With the take-off of the world economy, all major economic countries in the world have accelerated the pace of road construction, and regard the establishment of a road network extending in all directions, smooth, convenient, comfortable and safe as the primary goal of promoting the rapid development of their own economy. However, limited land and space resources cannot meet the increasing traffic demand. In the middle and late 20th century, with the maturity of shield tunneling technology, people began to focus on the development of underground space, and the number and length of road tunnels continued to increase. [0003] The interior of the tunnel is a semi-enclosed space. Once a traffic accident occurs, a vehicle fires, gasoline and other flammable liquids flow and spread, and t...

Claims

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Application Information

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IPC IPC(8): E01C19/10E01C19/16E01C19/18E01C19/22
Inventor 丁庆军李潜黄绍龙胡曙光沈凡孙政
Owner WUHAN MUNICIPAL CONSTR GROUP
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