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
General Pervlous
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
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