High-toughness Ultra-thin Asphalt Wearing Course
EXW
$11.45-25.77 /m²
China
South China University of Technology National University Science Park Shunde Innovation Park
0757-23338838
Online Contact
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Product Introduction

The high-toughness ultra-thin asphalt wearing course technology utilizes independently developed high-performance modified asphalt and high-viscosity modified emulsified asphalt as the binding material for hot-mix asphalt and the bonding layer material. Employing synchronous paving technology, it has a typical application thickness of 0.8-2.0 cm, with a minimum thickness of 6 mm for the hot-mix asphalt concrete overlay structure. The resulting pavement exhibits significantly superior crack resistance, impermeability, skid resistance, and noise reduction compared to conventional asphalt pavements.

Technical Advantages:

  1. Thin Structural Layer: Typical thickness of 0.8-2 cm, the thinnest in the industry, can be directly overlaid on the original pavement without affecting its elevation.
  2. Durable and Crack-resistant: Designed for a service life exceeding 8 years, with a high oil-stone ratio and thick asphalt film, offering crack resistance far superior to conventional asphalt mixtures.
  3. Smooth and Quiet: Reduces noise by 3-7 dB compared to conventional pavements, currently the quietest pavement; hot paving process can restore surface evenness.
  4. Safe and Skid-resistant: Rich surface texture, >55 BPN, with a special skeleton structure providing a high surface friction coefficient.
  5. Economical and Environmentally Friendly: Saves 60% of asphalt materials and 75% of aggregates; reduces labor costs by 65% and equipment rental costs by 35%.
  6. Minimal Traffic Disruption: Construction efficiency increased by over 150%, allowing rapid traffic reopening after completion.
Product Parameters

Test Items

Unit

Technical Requirements

Test

Type PG88

Type PG94

Type PG100

Asphalt content (asphalt-stone ratio)

%

≥ 7.2

≥ 7.5

≥ 7.6

T 0735

Porosity

%

45722

45722

45722

T 0705

Bitumen saturation

%

70-90

70-90

70-90

T 0705

Stability MS

kN

≥ 8

≥ 8

≥ 8

T 0709

Coarse aggregate skeleton clearance rate VCAmix

 

≤VCAoRC

≤VCADRC

≤VCADRC

T 0705

Mineral aggregate clearance rate VMA

%

≥ 19.0

≥ 19.0

≥ 19.0

T 0705

Rutting dynamic stability (60℃, 0.7MPa)

Times/mm

≥ 5000

≥ 5000

≥ 5000

T 0719

Fort Kenta Flyback Test Losses

mm

≤ 8

≤ 6

≤ 6

T 0731

Freeze-thaw splitting test residual strength ratio

%

≥ 85

≥ 85

≥ 85

T 0733

Residual Marshall Stability

%

≥ 85

≥ 85

≥ 85

T 0729

Water permeability coefficient

%

≤ 120

≤ 120

≤ 120

T 0719

Four-point bending fatigue (15℃, 1000με)

Times

≥ 200000

≥ 300000

≥ 500000

T 0739

Pullout test strength (15℃, field core sample)

MPa

≥ 0.4

≥ 0.4

≥ 0.4

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