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Asphalt pavement conditioning curing agent and preparation method thereof

A technology of asphalt pavement and curing agent, which is applied in the preparation of asphalt pavement conditioning and curing agent, and in the field of asphalt pavement maintenance and repair. It can solve the problems of not too obvious effect, high cost of pavement renovation, and great impact of traffic, etc., and achieve good repair effect , Adhesive tightly, prevent the effect of water seepage on the road surface

Active Publication Date: 2008-08-06
CHONGQING SINCERE BOND PAVEMENT MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the usability of the newly built pavement can be obtained, there are still some defects: the pavement renovation has a greater impact on traffic, especially for some busy urban arterial roads and expressways with a large traffic volume; in addition, the cost of pavement renovation is relatively high , waste asphalt mixture pollutes the environment
However, the effect of this technology on the treatment of cracks of 3-5 mm, asphalt aging and falling off, severe loosening and other diseases is not obvious.

Method used

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  • Asphalt pavement conditioning curing agent and preparation method thereof
  • Asphalt pavement conditioning curing agent and preparation method thereof
  • Asphalt pavement conditioning curing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Get 200g of coal tar pitch, 60g of toluene, 32g of xylene, 5g of butanol, 10g of polycyclic aromatic hydrocarbons, 10g of phenol, 20g of anthracene, 34g of thermoplastic acrylic resin (produced by Foshan Gaoming Tongde Chemical Co., Ltd., brand AC1024), phthalic acid Dioctyl ester 10g, calcined kaolin (specification 325 mesh) 12g, rubber powder (specification 120 mesh) 10g, calcium carbonate (specification 325 mesh) 5g, carbon black (specification 325 mesh) 5g, add in the stirring tank successively, continuously stir, Then, reflux and stir at 150°C for 4 hours, and cool to normal temperature to obtain a uniform viscous liquid mixture which is the asphalt pavement conditioning and curing agent of the present invention.

[0033] Asphalt aging regeneration test: Take 26.4g of this curing agent and mix evenly with 600g of 70# base asphalt of SK Company in Korea after 85 minutes of aging. See Table 1-1 for the index comparison of 70# base asphalt of Korea SK Company before a...

Embodiment 2

[0041] Get 140g of petroleum pitch (brand AH-70), 10g of benzene, 80g of toluene, 20g of xylene, 15g of butyl acetate, 5g of acetone, 10g of resorcinol, 40g of kerosene, 10g of naphthalene, 20g of anthracene, 20g of lubricating oil, carbon five Petroleum resin 8g, C9 petroleum resin 12g, vegetable oil 7g, dibutyl phthalate 3g, clay (325 mesh specification) 10g, montmorillonite (325 mesh specification) 8g, calcined kaolin (325 mesh specification) 5g, carbon Black (specification: 325 mesh) 2g, put into the stirring tank successively, continuously stir, then under 60 ℃, condense and reflux stir for 0.5h, cool to normal temperature, obtain uniform viscous liquid mixture which is the asphalt pavement conditioning and maintenance agent of the present invention .

[0042] Asphalt aging regeneration test: Take 26.4g of this curing agent and mix evenly with 600g of 70# base asphalt of SK Company in Korea after 85 minutes of aging. See Table 2 for the index comparison of the 70# base a...

Embodiment 3

[0047] Get petroleum pitch (brand AH-90) 100g, thinner 120g, resorcinol 10, naphthalene 10, anthracene 20g, light mineral oil 20g, lubricating oil 20g, kerosene 30g, C9 petroleum resin 12g, silicone resin ( Polysiloxane) 5g, dibutyl phthalate 4g, clay (325 mesh specification) 10g, montmorillonite (325 mesh specification) 8g, calcined kaolin (325 mesh specification) 5g, carbon black (325 mesh specification) ) 2g, added in the stirring tank successively, continuously stirred, then condensed and refluxed and stirred for 3h at 120°C, cooled to normal temperature to obtain a uniform viscous liquid mixture which is the asphalt pavement conditioning and curing agent of the present invention.

[0048] Asphalt aging regeneration test: Take 26.4g of this curing agent and mix evenly with 600g of 70# base asphalt of SK Company in Korea after 85 minutes of aging. See Table 3 for the index comparison of the 70# base asphalt of Korea SK Company before and after aging, and after adding asphal...

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Abstract

The invention discloses asphalt pavement conditioning curing agent and a preparation process. The formulation comprises the following components with percentage by weight, 10-15% refined asphalt, 23-50% organic solution, 3-23% surface modifier, 2-10% functional auxiliary agent and 5-25% regenerative agent. The preparation process comprises conducting reasonable proportioning for refined asphalt, organic solution and regenerative agent, surface modifier and functional auxiliary agent, putting into a stirred tank in turn, starting a stirrer to stir continuously, stirring for 0.5-4h in condensation reflux under the temperature of 60-150 DEG C, and then cooling down to ambient temperature, finally obtaining the product of asphalt pavement conditioning curing agent when the mixture is completely cooled down. The curing agent has simple making art, low device requirement, low usage cost and simple construction technology, which can significant increase penetration degree, softening point and ductility of aging asphalt, beautifies the appearance of asphalt pavement, improves the quality of pavement, increases the cling ability of the pavement, and prolongs the service life of the pavement.

Description

technical field [0001] The invention relates to an asphalt pavement conditioner that can regenerate and restore the aging asphalt pavement, restore its performance to some performance indicators of the original new asphalt pavement, and can automatically bridge tiny cracks, effectively seal water, improve road friction coefficient and beautiful pavement appearance The invention discloses a preparation method of a curing agent, which belongs to the related field of asphalt pavement maintenance and repair. Background technique [0002] In recent years, semi-rigid asphalt concrete roads have become the main structural type of roads in our country. Asphalt pavement is dominated by the advantages of flat surface, comfortable driving, low noise, good vibration damping, and renewable utilization of old asphalt mixture. In the process of use, under the action of various natural factors (such as oxygen, temperature, ultraviolet rays, water, etc.) Ruts, potholes, looseness, various ...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08K5/00E01C7/00C08L57/02C08L75/04C08L33/00C08L83/00C08K3/00
Inventor 张会平刘帮银鄢瑛吴祥燕
Owner CHONGQING SINCERE BOND PAVEMENT MATERIALS
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