Green Technology Permeable Pavement Matthew Ramsay ENVR 3750.

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Presentation transcript:

Green Technology Permeable Pavement Matthew Ramsay ENVR 3750

Green Technology Permeable Pavement What is Permeable Pavement? Paving materials that allow water to ‘permeate’ or pass through it Different types of permeable pavement: Individual unit paving blocks Cobblestone bricks allow water to pass through the cracks Open cell concrete Spaces between concrete blocks are widened and filled with materials which allow for water absorption Specialized concrete and asphalt Less fine material in the mix creates larger voids for water to pass through Coarse aggregate materials are used

Green Technology Permeable Pavement What is Permeable Pavement?

Green Technology Permeable Pavement What is Permeable Pavement?

Green Technology Permeable Pavement What is Permeable Pavement?

Green Technology Permeable Pavement Advantages Reduces runoff Infiltration rate: inches per hour Helps to restore the natural water cycle Mitigates soil erosion Decreased levels of pollutants Filtration Microorganisms in void spaces Evaporative cooling LEED points Longer lifespan Up to 50 years Particularly in freeze/thaw climates Practical advantages: Less plowing needed Increased traction when wet Possible reduction in project cost – less need for traditional storm water management systems

Green Technology Permeable Pavement Advantages

Green Technology Permeable Pavement Limitations Unable to support large weight loads Not appropriate for streets, highways or heavy loading industrial sites Not able to be used in high pollution contaminated areas Water in these areas should be treated before re- entering the water system Site must be not be too sloped Cost Specialized concrete and asphalt generally costs more than traditional pavement Porous asphalt 10-20% more expensive

Green Technology Permeable Pavement Manitoba Reduce the impact of surface parking lots or driveways Longevity of pavement improved for Manitoba’s freeze / thaw climate Important to reduce erosion on the river banks Increased green spaces Manitoba is flat

Green Technology Permeable Pavement Sources Permeable Pavement. (2013). Capital Regional District. Permeable Pavements. (2010). Pavement Interactive. Booth, D., Leavitt, J. (1999). Field Evaluation of Permeable Pavement Systems for Improved Stormwater Management. APA Journal 65(3) p Brattebo, B., Booth, D. (2003). Long-Term Stormwater Quantity Performance of Permeable Pavement Systems. Water Research 37 p, Permeable Pavement. (n.d.). Kitsap County.

Green Technology Permeable Pavement Images 1. ble_paver_demonstration.jpg/300px- Permeable_paver_demonstration.jpg 2. o/ThcwAomophI/AAAAAAAAAg8/iI-7C6m7SF8/s1600/permeable- paving-block.jpg Booth & Leavitt, in-downtown-winnipeg.jpg