permeable interlocking concrete pavers

Biomimicry and Permeable Interlocking

Concrete Pavements (“PICP”)

…a ‘natural’ approach

Rick Crooks Mutual Materials Company www.mutualmaterials.com

Summer Teachers Institute: June 24, 2015

Thurston Conservation District

Permeable Interlocking Concrete Pavement

An innovative, sustainable pavement that functions both as a durable traffic surface

and a stormwater infiltration or

detention system

Permeable Interlocking Concrete Pavement (“PICP”)

Permeable Interlocking Concrete Pavements

Differ from standard interlocking concrete pavements:

• They have the same material characteristics (high strength, durable finish), but…

• The system of underlying base aggregates and paver drainage features allow for infiltration of stormwater runoff…

• This decreases negative impacts on our environment and lets our paved surfaces act as a stormwater infiltration or detention system

PICP System Benefits •  Increased groundwater recharge •  Contaminants are filtered and reduced •  Peak flows and volumes are lowered,

reducing downstream flow and erosion •  Runoff temperatures are lowered •  Visually attractive pavement •  Ability to reinstate after repairs •  Maintainable - clogged openings can be

cleaned •  Immediately serviceable

PICP Components •  “Permeable” Pavers

– Manufactured to the same specification as “standard” pavers

– But, includes “drainage features” • Wide joints • Drainage holes

Eco-Stone ® paver

Ecoloc® Paver

Eco-Priora ®

4 x 8

8 x 8

Eco-Priora ®

PICP Components

•  Free-draining aggregates – “Clean, crushed rock” aggregates:

•  Jointing material and bedding course –  “ASTM No. 8” aggregate, (1/4” to 3/8”)

• Base material –  “ASTM No. 57 “ aggregate, (3/4” to 1-1/4”)

• Subbase material –  “ASTM No. 2 “ aggregate, (2” to 3”)

PICP Design Design and construct

according to industry guidelines

PICP Design and Industry Info: Online resources available at:

www.icpi.org

www.uni-groupusa.org

Eco Stone ( Red and Gray)

Multnomah Arts Center

Portland, OR

Eco-Loc (Gray) / 8 cm Holland (Charcoal)

Lewis River Wetlands

LaCenter, WA

Sustainable Development

“….development that meets the needs of the present without compromising the ability of future generations to meet their own needs.”

(1987 UN World Commission on Environment and Development)

THANK YOU!

Rick Crooks Mutual Materials Company

rcrooks@mutualmaterials.com (425) 922-7370