Difference between revisions of "Permeable pavements: Climate"
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===Pervious concrete=== | ===Pervious concrete=== | ||
Concerns over the resistance to the freeze-thaw cycle have limited the use of pervious concrete in cold weather environments.<ref name="Cold Weather">Vernon R. Schaefer, Keijin Wang, Muhammad T. Suleiman, John T. Kevern, Mix Design Development for Pervious Concrete in Cold Weather Climates, Iowa State University, Ames, IA, 2006 National Concrete Pavement Technology Center. Report No. 2006-01.mix_design_pervious.pdf</ref> | Concerns over the resistance to the freeze-thaw cycle have limited the use of pervious concrete in cold weather environments.<ref name="Cold Weather">Vernon R. Schaefer, Keijin Wang, Muhammad T. Suleiman, John T. Kevern, Mix Design Development for Pervious Concrete in Cold Weather Climates, Iowa State University, Ames, IA, 2006 National Concrete Pavement Technology Center. Report No. 2006-01.mix_design_pervious.pdf</ref> | ||
The rate of freezing in most applications is dictated by the local climate. The addition of a small amount of fine aggregate to the mixture increases the durability of the pervious concrete.<ref>J. Kevern, John K. Wang, V.R. Schaefer, Iowa State University, 2008</ref> Avoiding saturation during the freeze cycle is the key to the longevity of the concrete.<ref name="Concrete Tech">Pervious Concrete and Freeze-Thaw http://www.cement.org/tech/Pervious_print.html Concrete Technology E-Newsletter PCA 30 September 2012</ref> Related, having a well prepared 8 to 24 inch (200 to 600 mm) sub-base and drainage will reduce the possibility of freeze-thaw damage.<ref name="Concrete Tech"/> | The rate of freezing in most applications is dictated by the local climate. The addition of a small amount of fine aggregate to the mixture increases the durability of the pervious concrete.<ref>J. Kevern, John K. Wang, V.R. Schaefer, Iowa State University, 2008</ref> Avoiding saturation during the freeze cycle is the key to the longevity of the concrete.<ref name="Concrete Tech">Pervious Concrete and Freeze-Thaw http://www.cement.org/tech/Pervious_print.html Concrete Technology E-Newsletter PCA 30 September 2012</ref> Related, having a well prepared 8 to 24 inch (200 to 600 mm) sub-base and drainage will reduce the possibility of freeze-thaw damage.<ref name="Concrete Tech"/> | ||
Latest revision as of 19:14, 6 August 2020
Pervious concrete[edit]
Concerns over the resistance to the freeze-thaw cycle have limited the use of pervious concrete in cold weather environments.[1] The rate of freezing in most applications is dictated by the local climate. The addition of a small amount of fine aggregate to the mixture increases the durability of the pervious concrete.[2] Avoiding saturation during the freeze cycle is the key to the longevity of the concrete.[3] Related, having a well prepared 8 to 24 inch (200 to 600 mm) sub-base and drainage will reduce the possibility of freeze-thaw damage.[3]
- ↑ Vernon R. Schaefer, Keijin Wang, Muhammad T. Suleiman, John T. Kevern, Mix Design Development for Pervious Concrete in Cold Weather Climates, Iowa State University, Ames, IA, 2006 National Concrete Pavement Technology Center. Report No. 2006-01.mix_design_pervious.pdf
- ↑ J. Kevern, John K. Wang, V.R. Schaefer, Iowa State University, 2008
- ↑ 3.0 3.1 Pervious Concrete and Freeze-Thaw http://www.cement.org/tech/Pervious_print.html Concrete Technology E-Newsletter PCA 30 September 2012