Rubber asphalt composition
A technology of rubber asphalt and composition, which is applied in the direction of building structure, building components, building insulation materials, etc., can solve the problems of high viscosity of rubber asphalt, high content of rubber asphalt, insufficient high temperature stability, etc., and achieve good construction performance, The effect of good high temperature performance
Inactive Publication Date: 2008-06-25
SHANGHAI QUNKANG ASPHALTUM TECH CO LTD
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, rubber asphalt formulated with waste tire rubber still has insufficient high-temperature stability, which will affect the application of rubber asphalt in heavy-duty, traffic trunk lines and high-temperature areas when road traffic overload is unavoidable
In addition, due to the high content of rubber asphalt added, the viscosity of rubber asphalt is too high at 177 ° C, and the construction performance is not good
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreExamples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0010] Add 20-30% tire rubber powder to the asphalt, stir and react at 180°C for 45 minutes, based on the percentage of asphalt mass. The rubber is the powder after crushing truck tires and removing steel wires and fibers. The powder is not The particle size is 20-40 mesh, the average particle size is 20 mesh, the rubber hydrocarbon content is 60%, the acetone extract is 7%, and the ash content is 8%; the asphalt is Donghai No. 70 road petroleum asphalt. Then add petroleum resin and SIS with an asphalt weight of 6-30%, and continue to stir for 30 minutes to prepare composite rubber asphalt. The raw materials and proportioning of each embodiment are shown in Table 1.
[0011] Table I
[0012] Component
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| softening point | aaaaa | aaaaa |
| softening point | aaaaa | aaaaa |
Login to View More
Abstract
The invention belongs to the composite rubber asphalt technical field. The compositions (by weight portion) of the rubber asphalt composite of the invention are: 100 weight portions of asphalt, 20 to 40 weight portions of 10-to-60-mesh tyre rubber powder, 5 to 40 weight portions of petropols, and 1 to 5 weight portions of SIS. The rubber asphalt composite of the invention, compared with common rubber asphalt, has a better high temperature property due to a higher softening point and good construction performance due to a lower viscosity at 177 DEG C.
Description
technical field [0001] The invention belongs to the technical field of composite rubber asphalt. Background technique [0002] According to the definition of the American Society for Testing and Materials standard (ASTMD 6114-97), rubber asphalt refers to the modified asphalt obtained by the swelling reaction of tire rubber powder with a content of more than 15% under high temperature and sufficient mixing conditions (above 180°C) Cementing material, because the volume ratio of rubber particles after swelling can reach 40%, rubber asphalt and its mixture can show the characteristics of vulcanized rubber, the low-temperature deformation ability, the flexibility of the road surface below normal temperature are improved, and the anti-aging ability of tires is improved. Pass, is an ideal long-life, crack-resistant asphalt material. And because recycled tires are used as modified materials, it has a cost advantage compared to SBS modified asphalt. However, rubber asphalt formul...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L21/00C08L57/02C08L53/02
Inventor 黄子章
Owner SHANGHAI QUNKANG ASPHALTUM TECH CO LTD