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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 coagulation pavement, etc. It can solve the problems of blank materials and achieve excellent permeability, simple preparation process, and low equipment requirements.

Active Publication Date: 2012-08-01
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 AH-70 petroleum asphalt (model SK70#) 300g, water 150g, ethyl acetate 30g, ethanol 20g, SBR latex 40g, EVA emulsion 150g, 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 water and 20g DVAP BIT AM-90 at 55~60℃; dilute 300g SK70# petroleum asphalt with 30g ethyl acetate and 20g ethanol; dilute 350g asphalt solution, 40g SBR latex , 150g of EVA emulsion was added to the prepared 170g of emulsifier aqueous solution in turn, emulsified in the asphalt emulsification equipment, and then added in turn with 5g of DN-630 silane coupling agent, 10g of fumed silica and 275g of calcined kaolin, in a high-speed stirring tank , Stir continuously at high speed for 15-30 minutes at normal temperature and pressure, and the finished product is obt...

Embodiment 2

[0038] SBR latex is replaced by SBS latex among the embodiment 1, all the other remain unchanged, and effect is similar to embodiment 1.

Embodiment 3

[0040] In embodiment 1, SBR latex is replaced by EBS latex, all the other remain unchanged, and the effect is similar to that of embodiment 1.

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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 adhesionpromoter, 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 a kind of beautifying and repairing asphalt pavement aging, pockmarked surface, tiny cracks, water seepage and other early diseases, which can quickly penetrate the surface layer of asphalt pavement, seal the road surface, control the pockmarked surface, stabilize looseness, bridge small cracks, and achieve water sealing. The invention discloses a road asphalt recovery agent for improving road skid resistance and beautiful pavement appearance and a preparation method thereof, belonging to the related field of asphalt pavement maintenance and repair. Background technique [0002] As asphalt pavement is more and more widely used in the construction of expressways and urban roads, 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 the service life. If comprehensive treatment is not carried ou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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