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Modified Asphalt (RPMA)
This product is manufactured from asphalt and SBS (polymer synthetic modifier) using the pre-mix method with a high-performance mixer, delivering a uniform quality and improved physical and chemical bonding performance and requiring no separate input facility.
Asphalt
SBS
Catalyst
SBS(Styrene Butadiene Styrene)
- This product delivers a high elastic recovery and low hysteresis, so it absorbs externally applied energy and at the same time quickly dissipates heat to the outside, allowing for a pleasant and safe driving.
- This product extends the life of road pavement by improving plastic deformation (summer), low-temperature cracking (winter), and fatigue cracking through the improvement of asphalt performance.
Product Features
This product is manufactured using the PRE-MIX method to provide uniform quality, and it is possible to use the existing tank facilities without additional input facilities.
General Asphalt Products
- Low temperature viscosity
- Increased low-temperature brittleness
- Low elasticity
- Low adhesion
- Soft weather resistance
- Plastic deformation
- Low temperature cracking
- Fatigue cracking
- Aggregate delamination
- Shortened lifespan
RPMA Modified Asphalt Products
- Increased viscosity
- Increased flexibility
- Increased elasticity
- Enhanced adhesion
- Enhanced weather resistance
- Reinforced plastic deformation resistance
- Increased resistance to low-temperature cracking
- Shock absorption and fatigue crack prevention
- Prevention of adhesion with aggregate and stripping
- Extended lifespan of the pavement
RPMA Quality
- RPMA TEST Results
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Test Items Product Specifications PG 70-22 PG 76-22 PG 82-22 Viscosity (130℃) 3,000 cP or less 1,035 2,030 2,940 Flash point (℃) 230℃ or higher 324 320 324 G*/sinδ at(Original Asphalt) 1.0kPa or more 1.58 1.78 2.02 G*/sinδ at(after RTFO) 2.2kPa or more 2.73 4.16 4.88 G*/sinδ at(after PAV) 5,000kPa or less 2,260 1,115 1,009 Stiffness(Mpa) 300 or less 129 109 108 m-value 0.3 or more 0.320 0.312 0.314 ※ Ministry of Land, Infrastructure and Transport (MOLIT) Guideline on Asphalt Concrete Pavement Work
- Modified Asphalt Performance Grade Standards
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Product Name PRMA Test Items Performance Grade PG70-22 PG76-22 PG82-22 PG82-34 Asphalt
Original AsphaltFlash point, °C KS M-2010 230 or higher Viscosity@135℃, Cp KS F-2392 3,000 or less Dynamic Shear
(Plastic deformation resistance stress)
@10rad/secG*/sinδ,㎪ KF F-2393 1.0 or higher Test temperature, ℃ 70 76 82 Residue test after rolling thin film oven aging
after RTFOMass loss, wt. % KF M-2259 1.0 or less dynamic shear
(Plastic deformation resistance stress)
@10rad/secG*/sinδ,㎪ KS F-2393 2.2 or higher Test temperature, ℃ 70 76 82 After pressure aging vessel aging, residue test
after PAVPressure aging temperature, ℃ KS F-2391 100 Dynamic shear
(Plastic deformation resistance stress)
@10rad/secG*/sinδ,㎪ KS F-2393 5,000 or less Test temperature, ℃ 28 31 34 28 Low temperature crack resistance
(BBR Test)Bending creep stiffness (S). Mpa KS F-2390 300 or less Gradient (m value) 0.3 or more Test temperature, ℃@60sec -12 -24 ※ MOLIT Guideline on Asphalt Concrete Pavement Work
Types and Features of Modified Asphalt Concrete Pavement Method
| Category | Modified Asphalt Pavement | ||||||
|---|---|---|---|---|---|---|---|
| General Pavement | SMA Pavement | Low Noise Pavement | |||||
| Asphalt Binder | PG | RPMA 70-22 RPMA 76-22 RPMA 82-22 |
PG | RPMA 70-22 RPMA 76-22 RPMA 82-22 |
PG | RPMA 82-22 RPMA 82-34 |
|
| Product Concept | Product that significantly reduces pavement damage including plastic deformation, cracking and stripping, thereby extending the lifespan | Improved flow and crack resistance with the modified asphalt (PG76-22) applied to the SMA pavement method. Fiber additives used to prevent asphalt dripping | A high-viscosity modified asphalt for low-noise water permeable pavement, providing a strong adhesion to aggregates with an excellent weather-and water-resistance performance | ||||
| Product Concept | Granularity |
WC-1 ~ 6 (Coarse Aggregate: Fine Aggregate≒50:50) 
|
SMA Particle Size: Gap Particle Size (Coarse Aggregate: Fine Aggregate≒75:25) 
|
Low Noise Drainage and Particle Size (Coarse Aggregate: Fine Aggregate≒9:1) 
|
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| Porosity | 2.0~6.0% (Mixture Design Criteria) | 2.0~4.0% (Mixture Design Criteria) | 19~21% (Mixture Design Criteria) | ||||
| AP Content | 5.0~6.0% | 6.0~8.0% | 4.5~5.5% | ||||
| Production Temperature | 170~180℃ | 170~180℃ | 175~185℃ | ||||
| Installation | Compaction Equipment (General) | Macadam (4 times)/Tire (10 reps)/Tandem (4 times) | Macadam (4 times)/Macadam (6 times)/Tandem (4 times) | Macadam (4 times) / Tandem (4 times) | |||
| Installation Features | Strict temp. and compaction management / Strict waiting time for installation | Strict temp. and compaction management / Strict waiting time for installation | Strict temp. and compaction management / Strict waiting time for installation | ||||
| Features | Pavement lifespan | About 2-3 times longer than general pavement | About 3 times longer than general pavement | Better than general pavement | |||
| Flow resistance (KS F 2374) |
Dynamic stability: 4,000~8,000 times/mm | Dynamic stability: 4,000 to 9,000 cycles/mm | Dynamic stability: 3,000 times/mm | ||||
| Crack resistance (IDT test) |
Better than general pavement | Higher density compared to modified dense graded pavements | Better than general pavement | ||||
| Toughness (N.m) |
34.9N.m | Higher density compared to modified dense graded pavements | 30.7N.m | ||||
| Skid resistance (BPN) |
Fair | Excellent | Excellent | ||||
| Waterproof | Water impermeability | Water impermeability | Permeability | ||||
| Noise reduction effect | Standard | Good (-2 ~ -3 db compared to general pavement) | Excellent (-6 ~ -9 db compared to general pavement) | ||||
| Wet road reflection | Fair | Good | Excellent | ||||
| Advantages |
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| Disadvantages |
A dedicated tank for storage of modified asphalt is required (Existing storage tanks may be used) |
A dedicated tank for storage of modified asphalt is required (Existing storage tank may be used) Depending on the region, SMA (Stone Mastic(Matrix) Asphalt) aggregates may be difficult to secure. |
A dedicated tank for storage of modified asphalt is required (Existing storage tanks may be used) |
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| Main Use | Bicycle road, local road, highway and bridge deck pavement | Highway and steel deck bridge pavement | Low-noise, water-permeable, functional pavement for highways, local roads, and new towns | ||||
Company
A-ONE Emulsion
Owner
Shim Sung-Hoon
Business License
180-86-00159
E-mail
a-onebitu@hanmail.net
- Ulsan Head Office
- 2nd fl., Jeomchon 6-gil 9-10, Beomseo-eup, Ulju-gun, Ulsan Metropolitan City Tel +82-52-269-7877 Fax +82-52-700-7879
- Gyeongju Plant
- Naengcheonjenaegongdan-gil 153, Oedong-eup, Gyeongju-si, Gyeongsangbuk-do Tel +82-54-771-1450~2 Fax +82-54-771-1455
- Seoul/Gyeonggi Office
- Room #1403, Ori-ro 876beon-gil 26, Gwangmyeong-si, Gyeonggi-do (Miseong Officetel #2, Cheolsan-dong) Tel +82-70-4607-1701 Fax +82-52-700-7879
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