Pervious/Porous Concrete

Pervious/Porous Concrete

Poolesville Town Hall

Site Plan

Details

Selling The Idea

• This is different to what is normal in appearance

• Explain that this is part of a total storm water management system

• Keep the system in the local news.

Working with Agencies

• Coordinate with the review agencies • During construction make sure other

inspectors are aware of what is taking place

Setting parameters

• Specifications have not been established to a great extent.

• But set reasonable specifications until ASTM and ACI issue

Finding contractors

• This should be part of the review process and part of the contractor selection process.

• Look at what other successful projects have in common.

Subgrade Prep

Fabric Placement

Day of the Pour

The Material

Discharge

Testing

Test Panel

Sample

Placement

Finish and Cover

Testing the product and placement in Service

• The Town flooded the Parking lot using a fire hose to determine if the Pervious Concrete had sections that were not Porous.

• The beams were broken and flex was examined along with the shear plains within the aggregate.

• Cores were examined for uniformity of placement.

• Once all, criteria were met the parking lot went into service 28 days latter.

Beam Break

Functioning

Finish