Drainasphalt
Application

  • Commercial schemes.
  • New housing developments.
  • Retail parks.
  • Car parks.

Description

Permeable asphalt which allows water to pass through to the underlying structure. The product comes in various sizes to suit a range of applications and can be combined with a wide range of other sustainable drainage products to offer the perfect Sustainable Drainage System (SUDS) solution.

Features:

  • Porous material allows surface water to drain.
  • Developed for use as an asphalt porous surface and binder course component in a SUDS pavement.
  • Inverted texture allows for high capacity acoustic absorption.

Applications:

  • Commercial schemes.
  • New housing developments.
  • Retail parks.
  • Car parks.

General information

Features

Porous material allows surface water to drain

Developed for use as an asphalt porous surface and binder course component in a SUDS pavement

Inverted texture allows for high capacity acoustic absorption

Uniclass 2015

Pr_35_31_05_40 Hot-rolled asphalt (HRA) surface courses and slurriesPrimary

CAWS

Q22/10 Asphalt concrete paving

Q22/110 Asphalt concrete paving

Q22/115 Asphalt concrete paving

Q22/140 Hot rolled asphalt paving

Q22/15 Asphalt concrete paving

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Specification data - Hot-rolled asphalt (HRA) surface courses and slurries

Product Reference

Drainasphalt 10

10 mm aggregate.

Drainasphalt 14

14 mm aggregate.

Drainasphalt 20

20 mm aggregate.

Product Options

Mechanical properties:

- Drainasphalt 10:

  • Air voids: 18–25%.
  • ITSM stiffness at 20°C, 2.5 Hz: 660 MPa.
  • Retained stiffness: >75%.
  • Hydraulic conductivity (to BS EN 12616): 15 044 mm/h.

- Drainasphalt 14:

  • Air voids: 18–25%.
  • ITSM stiffness at 20°C, 2.5 Hz: 850 MPa.
  • Retained stiffness: >75%.
  • Hydraulic conductivity (to BS EN 12616): 17 390 mm/h.

- Drainasphalt 20:

  • Air voids: 18–25%.
  • ITSM stiffness at 20°C, 2.5 Hz: 920 MPa.
  • Retained stiffness: >75%.
  • Hydraulic conductivity (to BS EN 12616): 18 473 mm/h.

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