Improved solvent cold laid asphalt as well as preparation process and using method thereof

A cold-paved asphalt and improved technology, applied in the direction of on-site coagulation pavement, building components, building thermal insulation materials, etc., can solve the problems of being easily affected by the climate, unable to construct, and the environmental pollution has a great impact on the health of workers. The effect of convenient and open traffic, convenient construction and operation, and good storage stability

Inactive Publication Date: 2014-07-16
CHANGAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both traditional thermal repair and thermal regeneration repair methods are easily affected by the climate. Heating and rolling are required during construction, which has a relatively large impact on environmental pollution and workers' health. Construction cannot be carried out in low temperature seasons and rainy seasons, which is harmful to climate conditions. Higher requirements are put forward for road repair technology under the conditions

Method used

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  • Improved solvent cold laid asphalt as well as preparation process and using method thereof
  • Improved solvent cold laid asphalt as well as preparation process and using method thereof
  • Improved solvent cold laid asphalt as well as preparation process and using method thereof

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preparation example Construction

[0034] The invention also discloses a preparation method of the improved solvent cold paving asphalt, which comprises the following steps:

[0035] 1) According to the mass parts, add 2-6 parts of tackifier, 0.5-3 parts of plasticizer, 1~5 parts of reinforcing agent, 0.5~2.5 parts of anti-settling agent, 0.5~ 3 parts of softener and 0.1 to 2 parts of surfactant are miscible and stirred evenly to obtain mixture A;

[0036] 2) Take 100 parts of road petroleum asphalt and heat it to a molten state, and then pour the molten road petroleum asphalt into a mixing equipment with a rotation speed of 200 ~ 500r / min;

[0037] 3) Add 15-30 parts of diluent to the road petroleum asphalt in the mixing equipment, and fully mix to form diluted asphalt;

[0038] 4) Add mixture A to the diluted bitumen and mix it evenly to obtain mixture B;

[0039] 5) Add 0.2-0.5 parts of PA-1 to the mixture B and mix evenly to obtain an improved solvent cold paving asphalt; among them, in step 1) to step 5), the total...

Embodiment 1

[0041] First, mix 2.9% of tackifier, 0.7% of plasticizer, 3.7% of reinforcing agent, 1.8% of anti-settling agent, 1.5% of softener and 0.6% of surfactant in mass percentage, and stir thoroughly. , Ready; secondly, pour the 73.7% of the base asphalt heated to the molten state into the mixing equipment, adjust the speed of the mixing equipment, and control its speed at 200~500r / min; again add 14.7% of the diluent to the asphalt and stir fully Form the diluted asphalt; then add the pre-prepared mixture of tackifier, plasticizer, reinforcing agent, anti-settling agent, softener and surfactant into the diluted asphalt and stir it fully; finally add 0.4% anti-stripping agent , Stir thoroughly. It is bound to stir for several minutes when adding each additive, and the total stirring time should be controlled within 30 minutes.

[0042] Precautions:

[0043] After heating the base asphalt to a molten state, you should stop for a few minutes before adding the diluent into the asphalt, bec...

Embodiment 2

[0052] 1) In terms of parts by mass, combine 2 parts of terpene resin, 0.5 parts of dioctyl phthalate DOP, 1 part of carbon black, 0.5 parts of white carbon black anti-settling agent, and 0.5 parts of Mineral oil and 0.1 part of C l7 ~C 20 Or C 7 ~C 9 Alkyl propylene diamine dihydrochloride and alkyl amine hydrochloride are miscible, and stir evenly to obtain mixture A;

[0053] 2) Take 100 parts of 70# base pitch and heat it to a molten state, and then pour the melted state 70# base pitch into a mixing equipment with a rotation speed of 200~500r / min;

[0054] 3) Add 15 parts of gasoline to 70# base asphalt in the mixing equipment, and fully mix to form diluted asphalt;

[0055] 4) Add mixture A to the diluted bitumen and mix it evenly to obtain mixture B;

[0056] 5) Add 0.2 parts of PA-1 to the mixture B and stir evenly to obtain an improved solvent cold paving asphalt; among them, in step 1) to step 5), the total mixing time is less than or equal to 30 minutes.

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Abstract

The invention discloses an improved solvent cold laid asphalt as well as a preparation process and using method thereof. The improved solvent cold laid asphalt is at a liquid state under normal temperature or low temperature; cold oil and cold materials can be directly blended for construction on the spot without heating, and the construction can be carried out at high/low temperature seasons and rain/snow weather, and a large number of machinery and labor are not required in the construction process, the construction is simple and convenient and the repair effect is good; traffic can be immediately opened after repair without affecting the travel of people; the improved solvent cold laid asphalt is usually used for daily maintenance, such as pot slot repair and emergency repair; meanwhile, the improved solvent cold laid asphalt has the advantages of no deterioration, no layering and the like after being stored for a long time.

Description

Technical field [0001] The invention belongs to the technical field of materials used in road engineering, and specifically relates to an improved solvent cold paving asphalt and a preparation process and a use method thereof. Background technique [0002] Asphalt pavement repair is mainly to repair and strengthen diseases such as potholes, looseness, and local network cracks. At the same time, it can also treat diseases such as local subsidence, crowding, and slippage cracks. The current common treatment methods in my country are mainly heat repair Methods, including the use of heat sources (liquefied petroleum gas, infrared heating technology, etc.) thermal regeneration method, jet repair method, etc. Both traditional thermal repair and thermal regeneration repair methods are easily affected by the climate. Heating and rolling are required during construction, which will have a greater impact on environmental pollution and workers’ health. They cannot be constructed in low-tempe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L45/00C08L45/02C08L57/02C08L93/04C08K13/02C08K5/12C08K5/11C08K3/04C08K3/36C08K3/22C08K3/34E01C7/26
Inventor 郑木莲闫春梅陈楚鹏
Owner CHANGAN UNIV
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