JW Pavement EcoTechnology
Comparisons with Current Methodologies
Sidewalks, plazas, outdoor sports parks can use a type of general permeable asphalt or brick that has moderate permeability and poor ventilative
characteristics. Over time, this material loses its permeability due to congestion from dust and debris. Also, this type of pavement requires frequent
maintenance because it compromises porosity for structural integrity.
JW sidewalk pavement methodology uses drainage holes or pores that
allows for a high rate of surface water displacement. In addtion JW technology uses high strength concrete (pervious or impervious) to reduce wear and maintenance.
| Comparisons | JW Aqueduct Surface |
General Pervlous Brlcks |
|---|---|---|
| Chip Resistant | High | Low |
| Dent Resistant | High | Low |
| Compressive strength | High | Low |
| Abrasive hardness | High | Low |
| Slip Resistant | Medium/High | Medium |
| Repair & Maintenance | At least 10 years without repair |
Frequent repair and maintenance |
| Cleaning | Pores(holes) only need cleaning every 3-5 yrs |
Cannot be cleaned or maintained |
| Patterns/Colors | Can be changed/ colors won't fade |
Must be planned beforehand, easily fades |
| Time from grouting to completion | 1 day | 7-10 days |
| Perviousness | Excellent | Poor |
| Ventilation with subsurface | Excellent | No ventilation |
Most pervious road surfaces adopt a multi-porous pavement, such as permeable asphalt or permeable bricks, or hollow pavement, such as vegetation bricks, all of which compromise strength for porosity - therefore, these methods are only being used in low traffic driveways, sidewalks, and car parks. JW has developed a framework for high usage roadway surfaces, the JW Semi-Rigid Pervious Roadway. This structure uses the JW Aqueduct methodology to provide a rigid, comfortable road surface for high traffic for small and large vehicles, and even aircraft, while providing a permeable, ventilative surface.
| Comparisons | JW Semi-Rigid Pervious Driveway |
General Asphalt Road | General Pervious Asphalt Driveway |
|---|---|---|---|
| Compressive strength | High | Medium | Low |
| Durability | High | Medium | Low |
| Permeaility | Permeable to groundwater layer |
Impervious | Semi-permiable, water discharges from sides of the road |
| Ventilative ability | Good, conserves soll | Non-Ventilative | Non-Ventilative |
| Slip Resistant | High | Low | High |
| Fog reduction | Good | Poor | Good |
| Light reflection reduction | Good | Poor | Good |
| Noise reduction | Excellent | Poor | Medium |
| Surface temperature | Low | High | High |
| Rainwater recycling | Yes | No | No |
