Asphalt resin-based cold regenerant and regenerated mixture

A technology of asphalt resin and cold regenerant, which is used in building thermal insulation materials, building components, buildings, etc., can solve the problems of poor pavement, low strength, and limited amount of used materials, and achieves low temperature sensitivity, high pavement strength, and construction. Efficient effect

Active Publication Date: 2014-05-28
何小兵
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  • Abstract
  • Description
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Problems solved by technology

[0004] In the existing technology, the regeneration of asphalt is divided into hot regeneration, warm regeneration and cold regeneration; in the hot regeneration process, the mixture is made of old asphalt materials, new mineral materials, regeneration agent and new asphalt, and the greater the amount of old materials , the higher the heating temperature of the old material, the obvious thermal aging of the old material, which will have a very bad effect on the road surface in the later stage. Therefore, the amount of old material is limited
[0005] In order to expand the utilization rate of old materials, the warm regeneration technology that integrates warm mixing technology and factory mixing hot regeneration technology has been developed. The temperature of recycled asphalt is 30°C-50°C lower than that of thermal regeneration, which reduces the aging of recycled asphalt; however, at this temperature, the old asphalt will still aggravate t

Method used

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  • Asphalt resin-based cold regenerant and regenerated mixture
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  • Asphalt resin-based cold regenerant and regenerated mixture

Examples

Experimental program
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Effect test

Embodiment 1

[0042] The asphalt resin-based cold rejuvenator of this embodiment comprises by weight: resin emulsion 60, cement 10, phase solvent 25, aggregate surface hydrophobic agent 0.15, curing agent 5, coupling agent 0.1 and antiaging agent 0.25;

[0043] In this embodiment, the resin emulsion is an epoxy resin emulsion; the curing agent is 2, 4, 6 tris(dimethylaminomethyl)phenol, and phenalkamine, aldimine, ketimine, triethanolamine can be used , T31 curing agent or 593 curing agent, or a mixture of several types. The results of the test have proved that there is no obvious difference in the effect of the obtained product; the cement uses high-alumina cement, which can be sulfoaluminate cement or Portland cement, or it can be Several kinds of mixtures have been proved by tests that there is no significant difference in the effect of the obtained products; the phase solvent adopts aromatic oil, and can use naphthenic oil, dimethyl succinate, dimethyl glutarate, dimethyl adipate, Hydro...

Embodiment 2

[0050] The asphalt resin-based cold regeneration agent of the present embodiment comprises by weight: resin emulsion 10, cement 25, phase solvent 5, aggregate surface hydrophobic agent 0.02, curing agent 0.5, coupling agent 1 and antiaging agent 0.05;

[0051] In this embodiment, the resin emulsion is an epoxy resin emulsion; the curing agent is phenalkamine, which can be 2, 4, 6 tris (dimethylaminomethyl) phenol, aldimine, ketimine, triethanolamine , T31 curing agent or 593 curing agent, or a mixture of several types. The results of the test have proved that there is no obvious difference in the effect of the obtained product; the cement is made of sulfoaluminate cement, and high alumina cement or Portland cement can be used, or it can be Several kinds of mixtures have been proved by experiments that there is no significant difference in the effect of the products obtained; the phase solvent is naphthenic oil, and aromatic oil, dimethyl succinate, dimethyl glutarate, dimethyl ...

Embodiment 3

[0057] The asphalt resin-based cold rejuvenator of this embodiment comprises by weight: resin emulsion 100, cement 5, phase solvent 50, aggregate surface hydrophobic agent 5, curing agent 45, coupling agent 0.02 and antiaging agent 1;

[0058]In this embodiment, the resin emulsion is an epoxy resin emulsion; the curing agent is phenalkamine, which can be 2, 4, 6 tris (dimethylaminomethyl) phenol, aldimine, ketimine, triethanolamine , T31 curing agent or 593 curing agent, or a mixture of several types. The results of the test have proved that there is no obvious difference in the effect of the obtained product; Portland cement is used for cement, and high alumina cement or sulfoaluminate cement can be used, or it can be Several kinds of mixtures have been proved by experiments that the effect of the obtained products has no obvious difference; the phase solvent is hydrogenated castor oil, naphthenic oil, dimethyl succinate, dimethyl glutarate, dimethyl adipate can be used , aro...

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Abstract

The invention discloses an asphalt resin-based cold regenerant and a regenerated mixture. The cold regenerant is composed of a resin emulsion, cement, a phase agent having dissolving and mixing effects for waste asphalt and the rubber emulsion, an aggregate surface hydrophobic agent and a curing agent of the resin emulsion. The resin emulsion, the phase agent and the cement are used as main components. Each of the components co-increases cementing property for the aggregate. When the cold regenerant is in use, a binding material is a multi-phase system formed by intertwining dissolved and activated regenerated asphalt, the cured resin emulsion and a cement hydration product. The system is stable and has good binding property, and can overcome the main damage problems of high temperature softening deformation, low temperature brittle rupture and stripping of the binding interface eroded by water, of a single asphalt binding material. The regenerated mixture formed by the cold regenerant can be directly paved by vibration without roll compaction. Application efficiency is relatively high while cost is relatively low. A formed road surface has high strength and small temperature sensitivity, and can resist ageing and water erosion.

Description

technical field [0001] The invention relates to a regeneration agent which is mixed with waste asphalt on the road surface to regenerate it, in particular to an asphalt resin-based cold regeneration agent and a regeneration mixture. Background technique [0002] Asphalt pavement is the most widely used pavement structure in road construction; with the increase of service life, a large part of the pavement has reached the design life and needs to be overhauled or renovated. [0003] Due to the increasing proportion of asphalt pavement, a large amount of asphalt materials and mixtures are required for new construction and renovation; in order to save costs, the regeneration of old asphalt has attracted increasing attention. [0004] In the existing technology, the regeneration of asphalt is divided into hot regeneration, warm regeneration and cold regeneration; in the hot regeneration process, the mixture is made of old asphalt materials, new mineral materials, regeneration ag...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L33/00C08L25/14C08L9/06C08L11/00C08L95/00E01C7/20C04B24/28C04B24/26
Inventor 何小兵周超易志坚卓仪申强陈正攸杨庆国马银华谷建义
Owner 何小兵
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