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A kind of composite warm mixing regeneration agent and preparation method thereof

A warm-mixed regenerant and regenerant technology, which is applied to building thermal insulation materials, building components, buildings, etc., achieves the effects of simple preparation method, lower mixing temperature, and reduced emissions

Active Publication Date: 2017-01-04
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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  • A kind of composite warm mixing regeneration agent and preparation method thereof
  • A kind of composite warm mixing regeneration agent and preparation method thereof
  • A kind of composite warm mixing regeneration agent and preparation method thereof

Examples

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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 add...

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-mix regeneration agent, which is a composite material of a surfactant and an oil regeneration agent, and the surfactant is one or more of fatty acid glyceride, fatty acid sorbitan, polysorbate, and sucrose ester. The oil component regeneration agent is one or more of extracted oil, lubricating oil, engine oil and heavy oil when refining lubricating oil. The invention also discloses a preparation method of the composite warm-mixing regeneration agent, which comprises the following steps: weighing the surfactant and the oil regeneration agent according to a certain ratio; putting the two into mixing equipment for stirring. The present invention will show that the active agent is organically combined with the oil regeneration agent, and a composite warm-mix regeneration agent for asphalt pavement materials is invented, which can realize the reduction of the mixing temperature of asphalt and asphalt mixture and the recycling of old asphalt mixture, and the preparation process is free It solves the problems of environmental pollution and waste of resources caused by the high mixing temperature of traditional asphalt and asphalt mixture and the low utilization rate of old materials.

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 Patents(China)
IPC IPC(8): C08L95/00C08K5/103C08K5/00
Inventor 索智徐世法季节乐兴堃
Owner BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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