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Modified asphalt of waste tire rubber powder (abbreviated as modified asphalt of rubber powder)
Anhui Ruida independent design and development of "environmental protection waste rubber double helix modified plastic rubber powder regeneration equipment" production of modified asphalt plastic rubber powder is widely used in highway asphalt, rubber products, cables and wires, SBS modified asphalt waterproof roll rubber engineering. The physical and mechanical properties of plastic rubber powder remain unchanged, and the product performance is greatly improved. Rubber powder modified asphalt is mainly modified by waste tire rubber powder and supplemented by other chemical additives (rubber activator, softener). Road modified asphalt (rubber powder content is usually 15% ~ 25%); The rubber powder modified asphalt can significantly improve the high and low temperature performance, fatigue performance and anti-aging performance of ordinary asphalt, its performance is as superior as SBS modified asphalt, the cost is lower than SBS modified asphalt; There are essential differences between rubber modified asphalt and polymer SBS modified asphalt and rubber modified asphalt.
From the point of the material composition of rubber powder modified asphalt, rubber powder modified asphalt with 15% ~ 25% powder as modifier, and powder contained more beneficial ingredients, can significantly improve the performance of ordinary asphalt road and significantly prolong rubber powder modified asphalt aging period, so as to prolong the service life of pavement and the length of service, reduce the maintenance cost.
Plastic rubber powder index of asphalt modified by rubber powder
indicators
Modified asphalt with rubber powder
Softening point,℃
≥60
25℃,penetration,0.1mm
30~60
5℃,ductility,cm
≥10
25℃,Elastic recovery %
≥75
180℃,Brinell viscosity,Pa.s
2~3
Segregation softening point difference
≤3
Performance indicators are adjustable
It can be adjusted according to road requirements
Grading requirements
All grading types
Oil-stone ratio,%
4~6
Construction equipment and technology
general
The road surface elastic
optimal
The rutting resistance
optimal
The cracking resistance
optimal
Aging resistance
optimal
Workability of construction
optimal
PG grade
76-28、82-28
economy
optimal


