Product Introduction of Black Decolorized Asphalt
Black decolorized asphalt is a light-colored pavement binder mainly made from aromatic oil, resin, modifier and other raw materials through a special preparation process. It is often used as the core cementitious material for colored asphalt concrete. It can be mixed with pigments, aggregates and other materials to produce pavement mixtures of various colors including black. With excellent road performance and color controllability, it is suitable for multiple scenarios such as municipal engineering and landscape construction. The details are introduced from the aspects of core characteristics, technical parameters, application scenarios and construction key points as follows:
Core Characteristics
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Strong Color Controllability
It features a light base color, so only a small amount of high-temperature resistant pigments are needed to formulate a vivid black color. Adding colored aggregates can further improve color stability and durability, avoid later-stage darkening, and maintain the pavement appearance texture for a long time.
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Excellent Road Performance
- Good High-temperature Stability: It has a high softening point, low mass loss after high-temperature aging and few volatile components, which is not prone to bleeding. It is suitable for high-temperature summer environments and reduces the risk of pavement deformation.
- Superior Low-temperature Crack Resistance: It has a large low-temperature ductility value . It can effectively resist stress cracking caused by subgrade settlement and shrinkage, making it suitable for frigid regions.
- Strong Adhesion: With high viscosity, it has a strong wrapping force on aggregates, reducing the problems of pavement particle loss and looseness, and improving the overall structural strength and durability.
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Dual Advantages of Environmental Protection and Practicality
Impurities and harmful components are removed during production, which is non-toxic and odorless, reducing environmental pollution. Its light color can alleviate the heat island effect and contribute to urban ecological improvement. Meanwhile, it has good waterproof, anti-skid and noise reduction effects, enhancing the comfort and safety of pavement use.
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Convenient Construction
It can be constructed by conventional asphalt mixing plants and paving equipment without special tools, which lowers construction costs and technical thresholds, and is applicable to various construction scenarios.
Test Items |
Unit |
Standard Requirement (No. 70 Grade A) |
Standard
Requirement
(No. 80 Grade A) |
Penetration
(25℃, 100g, 5s) |
0. 1mm |
60 ~ 80 |
80-100 |
Ductility
(15℃, 5cm/min) |
cm |
≥ 100 |
≥ 100 |
| Softening Point (Ring & Ball) |
℃ |
46 ~ 54 |
44 ~ 52 |
Solubility
(Trichloroethylene) |
% |
≥ 99.5 |
≥ 99.5 |
Flash Point
(Cleveland Open Cup) |
℃ |
≥ 260 |
≥ 260 |
| Paraffin Wax Content (Distillation Method) |
% |
≤ 2.2 |
≤ 2.2 |
| Density (15℃) |
g/cm³ |
Report |
Report |
| Mass Change |
% |
≤ ±0.8 |
≤ ±0.8 |
| Residual Penetration Ratio |
% |
≥ 61 |
≥ 57 |
| Residual Ductility (10℃) |
cm |
≥ 6 |
≥ 6 |
| Kinematic Viscosity (135℃) |
Pa ·s |
Report |
Report |
Package:200L metal Drum
