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A hot-mix asphalt mixture joint paste for slowing down pavement cracks and preparation method thereof

A technology of asphalt mixture and road petroleum asphalt, which is applied in the direction of building insulation materials, building components, buildings, etc., can solve the problems of increasing maintenance costs and increasing maintenance workload, achieve significant social and economic benefits, and avoid easy separation layer, the effect of reducing black and white pollution

Active Publication Date: 2018-11-06
HUBEI GUOCHUANG HI TECH MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This will increase the maintenance workload and increase the maintenance cost.

Method used

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  • A hot-mix asphalt mixture joint paste for slowing down pavement cracks and preparation method thereof
  • A hot-mix asphalt mixture joint paste for slowing down pavement cracks and preparation method thereof
  • A hot-mix asphalt mixture joint paste for slowing down pavement cracks and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The added components and quantities are shown in Table 1, and the specific steps are as follows: 1) Preparation of prefabricated mixed asphalt: heating petroleum asphalt to 160°C, transporting and putting into construction asphalt at 155°C and mixing; 2) Stabilizer Preparation: put lignin fiber, metal soap, stearamide and sulfur into a mixer, grind at 80°C for 1.5h to prepare a stabilizer; the particle size of the stabilizer is less than 100 mesh; 3) heat the mixed asphalt to 180 ℃, put it into the working tank, and supplement the compatibilizer; 4) Add thermoplastic elastomers and high-temperature resins into the working tank while stirring and pass through the colloid mill to obtain the mixture A; 5) Put the mixture A into the development Horizontal tank, using a screw conveyor to add waste rubber powder to the development horizontal tank, after the waste rubber powder and asphalt are mixed and fused, add talcum powder, and finally add a stabilizer, stir and develop at...

Embodiment 2

[0022] The added components and quantities are shown in Table 1, and the specific steps are as follows: 1) Preparation of prefabricated mixed asphalt: heating petroleum asphalt to 165°C, transporting and putting into construction asphalt and mixing at 160°C; 2) Stabilizer Preparation: put lignin fiber, metal soap, stearamide and sulfur into a mixer, grind at 80°C for 0.5h to prepare a stabilizer; the particle size of the stabilizer is less than 100 mesh; 3) heat the mixed asphalt to 190 ℃, put it into the working tank, and supplement the compatibilizer; 4) Add thermoplastic elastomers and high-temperature resins into the working tank while stirring and pass through the colloid mill to obtain the mixture A; 5) Put the mixture A into the development Horizontal tank, using a screw conveyor to add waste rubber powder to the development horizontal tank, after the waste rubber powder and asphalt are mixed and fused, add talcum powder, and finally add stabilizer, stir and develop at 1...

Embodiment 3

[0024] The added components and quantities are shown in Table 1, and the specific steps are as follows: 1) Preparation of prefabricated mixed asphalt: heating petroleum asphalt to 170°C, transporting and putting into construction asphalt and mixing at 165°C; 2) Stabilizer Preparation: put lignin fiber, metal soap, stearamide and sulfur into a mixer, and grind at 70° C. for 1.5 hours to prepare a stabilizer; the particle size of the stabilizer is less than 100 mesh. 3) Heat up the mixed asphalt to 200°C, pour it into the working tank, and supplement the compatibilizer; 4) Add thermoplastic elastomer and high-temperature resin into the working tank while stirring and pass through the colloid mill to shear and grind to obtain the mixture A; 5) Put the mixture A into the development horizontal tank, add waste rubber powder into the development horizontal tank with a screw conveyor, stir the waste rubber powder and asphalt until they are evenly mixed, add talcum powder, and finally ...

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Abstract

The invention discloses an asphalt mixture seam plaster for alleviating pavement cracks and a preparation method thereof, and the asphalt mixture seam plaster comprises the components of 16-18% of petroleum asphalt, 4-6% of building asphalt, 23-26% of a compatilizer, 3-5% of a thermoplastic elastomer, 1-3% of high temperature resin, 25-32% of waster rubber powder, 20-26% of talcum powder and 0.2-0.6% of a stabilizer. The preparation method is as follows: heating the petroleum asphalt, then adding the petroleum asphalt into the building asphalt for even mixing, after heating, beating into a working tank, and adding the compatibilizer; adding the thermoplastic elastomer and the high temperature resin, and shearing and finely grinding by a colloid mill while stirring to obtain a mixture; beating the mixture into a development horizontal tank, adding the waste rubber powder, the talcum powder and the stabilizer, stirring at 165-185 DEG C for development for 3-4H to obtain a cementing material; extruding for molding the cementing material and packing. The asphalt mixture seam plaster has the advantages of strong adhesion and self restoring deformation ability, can greatly improve high temperature deformation resistance, low temperature cracking resistance and fatigue resistance of asphalt pavements, reduces effectively alleviates asphalt pavement cracks, increases driving comfort, and reduces road construction investment frequency.

Description

technical field [0001] The invention relates to the technical field of road engineering modified asphalt, in particular to an asphalt mixture joint sticker for alleviating road surface cracks and a preparation method thereof. Background technique [0002] After petroleum asphalt is modified by thermoplastic elastomer for road construction, it has soft elasticity when heated and plastic rigidity when cooled. Therefore, the difference between modified asphalt concrete and cement pavement construction is that it appears to be seamless construction. During actual construction, due to the existence of temperature difference and time difference, there are microscopic seams. Therefore, the construction specification of asphalt pavement requires: the joints are tight and the connection is smooth; the longitudinal joints of the upper and lower layers should be staggered by more than 150mm (hot joints) or 300-400mm (cold joints), and the horizontal joints between two adjacent layers a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L19/00C08L95/00C08L91/00C08L53/02C08L97/00C08K13/02C08K3/34C08K5/20C08K3/06
CPCC08L19/003C08L91/00C08L2201/08C08L2205/025C08L2205/035C08L95/00C08L53/02C08L97/005C08K13/02C08K3/34C08K5/20C08K3/06
Inventor 彭斌范春华邹进忠余春林万路涂娟丁昊丘先锋
Owner HUBEI GUOCHUANG HI TECH MATERIAL
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