Pavement rubber asphalt joint glue and preparation method

A technology of rubber asphalt and seam filling glue, applied in the field of rubber asphalt, can solve the problem that the high temperature performance and cohesion of seam filling glue cannot be further improved, and achieve the improvement of product performance stability, low temperature flexibility enhancement, and reduction of stress concentration points. Effect

Active Publication Date: 2022-06-17
包头交通投资集团物资有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides pavement rubber asphalt joint glue and its preparation method to solve the problem that the high temperature performance and cohesion of joint glue in the prior art cannot be further improved

Method used

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  • Pavement rubber asphalt joint glue and preparation method
  • Pavement rubber asphalt joint glue and preparation method
  • Pavement rubber asphalt joint glue and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Pavement rubber asphalt joint filling compound, in parts by weight, comprising 100 parts of asphalt, 35 parts of rubber composition, 2 parts of elastomer polymer, 33 parts of softening oil, 2 parts of interfacial compatibilizer and 5 parts of rubber vulcanizing agent; wherein The rubber composition includes, in parts by weight, 100 parts of rubber powder, 4 parts of rubber activator and 15 parts of rubber softener.

[0034] Among them, asphalt is petroleum asphalt; rubber activator is allicin, diphenyl disulfide compound, 480 or 560 activator; rubber softener is rosin, hydrogenated rosin or liquid coumarone; rubber powder is 20-60 mesh; elastomer The polymer is SBS, styrene-butadiene rubber or butadiene rubber; the softening oil is naphthenic oil or aromatic oil; the interface compatibilizer is chlorosulfonated polyethylene or ethylene-vinyl acetate copolymer; TMTD or Promo M.

[0035] The preparation method of the above-mentioned pavement rubber asphalt joint-filling ...

Embodiment 2～15

[0039] Examples 2-15 and Comparative Examples 1-4:

[0040] The difference from Example 1 is that the proportions of the components are different, and the specific proportions are shown in Table 1 below. In the table, C represents rubber powder, H represents rubber activator, and R represents rubber softener.

[0041] Table 1 is the component ratio table of Examples 2-15 and Comparative Examples 1-4

[0042]

[0043]

Embodiment 16

[0045] The difference from Example 1 is that a special stirring device is used in step S3 of Example 16, combined with figure 1 and figure 2 As shown, the special stirring equipment includes a horizontally fixed stirring drum, an inlet is provided at the left end of the stirring drum, an outlet is provided at the right end, and a stirring shaft 10 is rotatably connected in the stirring drum, wherein the stirring shaft 10 is hollow and arranged on two sides of the stirring shaft 10. Both ends are connected with pipes through rotary joints, and several stirring blades 11 are fixed on the stirring shaft 10, and the heating medium (gas, water, liquid metal, etc.) flows through the stirring shaft 10 through the pipes, thereby heating the stirring shaft 10 and stirring blades 11, A driving mechanism for driving the stirring shaft 10 to rotate is also provided.

[0046] A connecting rod 12 is slidably connected in the stirring shaft 10 . The connecting rod 12 is coaxially arranged ...

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Abstract

The invention relates to the technical field of rubber asphalt, and specifically discloses a road surface rubber asphalt joint glue and a preparation method, including 100 parts of asphalt, 25-40 parts of rubber composition, 1-3 parts of elastomeric polymer, 27-39 parts of softening oil, 1 to 4 parts of interface compatibilizer and 3 to 7 parts of rubber vulcanizing agent; the rubber composition includes 100 parts of rubber powder, 2 to 6 parts of rubber activator and 15 to 30 parts of rubber softener; the rubber powder, rubber activator After high-temperature kneading with softening agent and rubber softener, knead with softening oil, elastomer polymer, and rubber vulcanizing agent to obtain mixture A. After the asphalt is heated up, add mixture A and interfacial compatibilizer for stirring, and obtain rubber asphalt after cooling Joint potting glue, the high temperature and low temperature performance, cohesion and aging resistance of the joint potting glue obtained by this process have been greatly improved.

Description

technical field [0001] The invention relates to the technical field of rubber asphalt, in particular to pavement rubber asphalt seam filling glue and a preparation method. Background technique [0002] Pavement cracks are the most common form of road disease, and injecting joint glue into pavement cracks is a more practical method to treat pavement cracks. The waste tire rubber powder is usually added to the traditional joint compound to save the production cost. However, because the granular rubber powder will absorb a large amount of softening oil in the asphalt system and the light components of the asphalt will swell, resulting in the failure of the joint compound system. The viscosity at high temperature increases sharply, which is not conducive to the hot-melting and pouring construction of the seam-filling adhesive; in addition, although the rubber powder is essentially rubber and has excellent low-temperature flexibility, the cross-linked rubber powder limits the the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J195/00C09J117/00C09J153/02C09J109/06C09J109/00C09J11/04C09J11/06C09J11/08C08J11/10C08L17/00
CPCC09J195/00C09J11/04C09J11/06C09J11/08C08J11/10C08J2317/00C08L2205/035C08L2201/08C08L17/00C08L53/02C08L9/06C08L9/00C08L23/34C08L23/0853C08K3/06C08K5/31C08K5/47C08K5/40Y02W30/62
Inventor 董大伟江宽刘双旺董进学马庆杰颜亮武晋巍
Owner 包头交通投资集团物资有限责任公司
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