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Water-based road asphalt rehabilitating agent and preparation method thereof

A technology of road asphalt and restoration agent, which is applied in the direction of roads, roads, on-site paved cohesive pavements, etc. It can solve the problems of blank materials, achieve excellent permeability, improve road surface structure, and simple construction technology

Active Publication Date: 2011-09-21
CHONGQING SINCERE BOND PAVEMENT MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the domestic market, low-grade asphalt pavement preventive maintenance materials represented by emulsified asphalt and modified emulsified asphalt still account for a large proportion, while high-performance and environmentally friendly asphalt restoration materials are in the blank

Method used

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  • Water-based road asphalt rehabilitating agent and preparation method thereof
  • Water-based road asphalt rehabilitating agent and preparation method thereof
  • Water-based road asphalt rehabilitating agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Take 300g of AH-70 petroleum asphalt (model SK70#), 150g of water, 30g of ethyl acetate, 20g of ethanol, 40g of SBR latex, 150g of EVA emulsion, French Rhodia asphalt emulsifier DVAP BIT AM-90 (slow cracking and fast setting) Type quaternary ammonium salt cationic asphalt emulsifier) ​​20g, DN-630 silane coupling agent 5g, fumed silica 10g and calcined kaolin (250 mesh) 275g.

[0032] The preparation method is as follows: mix 150g of water and 20g of DVAP BIT AM-90 evenly at 55-60 DEG C; dilute 300g of SK70# petroleum asphalt with 30g of ethyl acetate and 20g of ethanol; dilute 350g of the diluted asphalt solution and 40g of SBR latex , 150g EVA emulsion was added successively to the prepared 170g emulsifier aqueous solution, emulsified in the asphalt emulsification equipment, and then 5g DN-630 silane coupling agent, 10g fumed silica and 275g calcined kaolin were added successively, and in the high-speed stirring kettle , Continuous high-speed stirring for 15 to 30 min...

Embodiment 2

[0038] The SBR latex in Example 1 was replaced with SBS latex, and the rest remained unchanged, and the effect was similar to that of Example 1.

Embodiment 3

[0040] The SBR latex in Example 1 was replaced with EBS latex, and the rest remained unchanged, and the effect was similar to that of Example 1.

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PUM

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Abstract

The invention discloses a water-based road asphalt rehabilitating agent and a preparation method thereof. The formula of the water-based road asphalt rehabilitating agent comprises the following components in percentage by weight: 20 to 30 percent of asphalt, 10 to 20 percent of water, 5 to 10 percent of solvent, 10 to 20 percent of modifier, 0.5 to 2 percent of emulsifier, 0.5 to 1 percent of adhesion promoter, 0.5 to 2 percent of antisettling agent and 25 to 40 percent of filler. The preparation method comprises the following steps of: mixing the water and the emulsifier at the temperature of between 55 and 60 DEG C uniformly; adding the asphalt and the modifier which are diluted by the solvent sequentially; emulsifying the materials in asphalt emulsifying equipment; adding the adhesion promoter, the antisettling agent and the filler sequentially; and continuously stirring for 15 to 30 minutes under the conditions of normal temperature, normal pressure and high speed to obtain the finished product. The water-based road asphalt rehabilitating agent has high permeability, cohesive property and durability, is used for beautifying road surface and repairing early diseases such as ageing of the asphalt road surface, pitting surface, water seepage and the like, prolongs the service life of the road by 2 to 3 years, and has remarkable economic and social benefits.

Description

technical field [0001] The invention relates to an early stage disease that can beautify and repair asphalt pavement aging, pockmarked surface, tiny cracks, water seepage, etc. It can quickly penetrate the asphalt pavement surface, seal the pavement, treat the pockmarked surface, stabilize the looseness, bridge the tiny cracks, and seal the water. The invention discloses a road asphalt restoring agent for improving the anti-skid ability of the road and the appearance of the beautiful pavement and a preparation method thereof, belonging to the related field of the maintenance and repair of the asphalt pavement. Background technique [0002] As asphalt pavement is more and more widely used in highway and urban road construction, the common diseases of asphalt pavement such as pavement aging, cracks, pockmarks, looseness, sanding and water damage are the biggest killers that affect the normal use of roads and shorten their service life. If comprehensive treatment is not carried...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L9/08C08L53/02C08L11/02C08L23/08C08L31/04C08L33/04E01C7/35
Inventor 吴祥燕刘帮银谌香玲
Owner CHONGQING SINCERE BOND PAVEMENT MATERIALS
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