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Composite warm-mixing regenerant and preparation method thereof

A technology of warm-mix regenerant and regenerant, which is applied in building insulation materials, building components, climate change adaptation, etc., to achieve the effects of cost reduction, utilization rate improvement, and good road performance

Active Publication Date: 2014-12-03
BEIJING UNIV OF CIVIL ENG & ARCHITECTURE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problems existing in the prior art, the present invention provides a composite warm mix rejuvenator, the purpose of which is to solve the problem of asphalt pavement failure due to the separation of the warm mix technology and the regeneration technology during the warm mix and regeneration process of the asphalt pavement. The technical problem of being unable to realize warm mixing and regeneration at the same time, so the present invention provides a composite warm mixing rejuvenator capable of simultaneously realizing aged asphalt regeneration and asphalt warm mixing functions

Method used

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  • Composite warm-mixing regenerant and preparation method thereof
  • Composite warm-mixing regenerant and preparation method thereof

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Embodiment 1

[0077] A composite warm-mix rejuvenator, which is composed of a surfactant and an oil rejuvenator. Among them, the surfactant is fatty acid glyceride, which is a yellow, transparent, liquid substance at room temperature, and the oil regeneration agent is the extracted oil from refined lubricating oil, which is a dark yellow, viscous liquid substance at room temperature.

[0078] Taking 5000g of asphalt binder as an example, the mass ratio of new asphalt to aged asphalt is 7:3, that is, the mass of new asphalt is 3500g, and the mass of aged asphalt is 1500g. The preparation method of above-mentioned composite warm mixing regeneration agent is as follows:

[0079] (1) Take fatty acid glyceride and the extracted oil when refining lubricating oil according to a certain ratio.

[0080] The amount of fatty acid glyceride added is 0.5% of the mass of asphalt binder, that is, P 脂肪酸甘油酯 =(P 1 +P 2 ) × A = 5000 × 0.5% = 25g; when the aged asphalt is regenerated to asphalt of the same...

Embodiment 2

[0084] A composite warm-mix rejuvenator, which is composed of a surfactant and an oil rejuvenator. The surfactant is sorbitan fatty acid, which is a yellow, transparent, liquid substance at normal temperature, and the oil regeneration agent is lubricating oil, which is a dark yellow, viscous liquid substance at normal temperature.

[0085] Taking 5000g of asphalt binder as an example, the mass ratio of new asphalt to aged asphalt is 7:3, that is, the mass of new asphalt is 3500g, and the mass of aged asphalt is 1500g. The preparation method of above-mentioned composite warm mixing regeneration agent is as follows:

[0086] (1) Sorbitan fatty acid and lubricating oil are weighed according to a certain ratio.

[0087] The amount of fatty acid sorbitan added is 0.3% of the mass of asphalt binder, that is, P 脂肪酸山梨坦 =(P 1 +P 2) × A = 5000 × 0.3% = 15g; when the aged asphalt is regenerated to asphalt of the same grade as the new asphalt, the amount of oil regeneration agent adde...

Embodiment 3

[0091] A composite warm-mix rejuvenator, which is composed of a surfactant and an oil rejuvenator. Among them, the surfactants are fatty acid glycerides and polysorbates, which are yellow, transparent, and liquid substances at room temperature, and the oil regeneration agent is lubricating oil and heavy oil, which are dark yellow and viscous liquid substances at room temperature.

[0092] Taking 5000g of asphalt binder as an example, the mass ratio of new asphalt to aged asphalt is 6:4, that is, the mass of new asphalt is 3000g, and the mass of aged asphalt is 2000g. The preparation method of above-mentioned composite warm mixing regeneration agent is as follows:

[0093] (1) The mixture of fatty acid glyceride and polysorbate and the mixture of lubricating oil and heavy oil are weighed according to a certain ratio.

[0094] The addition amount of fatty acid glyceride and polysorbate is 0.4% of the mass of asphalt binder, that is, P 脂肪酸甘油酯+聚山梨酯 =(P 1 +P 2 ) × A = 5000 × 0....

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Abstract

The invention discloses a composite warm-mixing regenerant. The composite warm-mixing regenerant is a composite material of a surfactant and an oil regenerant, wherein the surfactant is one or more of fatty acid glyceride, fatty acid sorbitan, polysorbate and sucrose ester and the oil regenerant is one or more of extracted oil obtained by refining lubricating oil, lubricating oil, engine oil and heavy oil. The invention also discloses a preparation method of the composite warm-mixing regenerant. The preparation method comprises the following steps of weighing the surfactant and the oil regenerant at a certain ratio, loading the surfactant and the oil regenerant into a mixing device and mixing. According to the composite warm-mixing regenerant disclosed by the invention, by organically combining the surfactant and the oil regenerant, the composite warm-mixing regenerant for an asphalt pavement material is produced, the reduction in the mixing temperature of asphalt and an asphalt mixture and the recycling of an old asphalt mixture can be simultaneously achieved, no pollution is generated in the preparation process and the problems that the environmental pollution, waste of resources and like caused by high mixing temperature of traditional asphalt and the asphalt mixture and low utilization ratio of the old asphalt mixture are solved.

Description

technical field [0001] The invention belongs to the field of asphalt pavement warm mixing technology and regeneration technology, and relates to an additive for asphalt cement, in particular to a composite warm mixing regeneration agent and a preparation method thereof. Background technique [0002] In recent years, the warm mixing technology and recycling technology of asphalt and asphalt mixture, as a new technology for asphalt pavement construction, has been paid more and more attention by people. [0003] The regeneration technology of asphalt pavement is to re-mix the old asphalt pavement with new asphalt pavement materials in a certain proportion after the pretreatment process of milling, recycling and screening, so that it can meet certain requirements. Excellent road performance and use it to re-pave the road surface technology. The traditional asphalt pavement regeneration technology is mainly heat-recycled asphalt mixture technology. The heat-regenerated asphalt m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08K5/103C08K5/00
CPCY02A30/30Y02P20/584
Inventor 索智徐世法季节乐兴堃
Owner BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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