Testing methods for pervious concrete

2018 ◽  
Keyword(s):  
Pervious Concrete ◽  
Testing Methods

scholarly journals Water Permeability of Pervious Concrete Is Dependent on the Applied Pressure and Testing Methods

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Yinghong Qin ◽  
Haifeng Yang ◽  
Zhiheng Deng ◽  
Jiang He
Keyword(s):  
Water Permeability ◽  
Applied Pressure ◽  
Pervious Concrete ◽  
Testing Methods ◽  
Applied Water ◽  
Apparent Permeability ◽  
Testing Method ◽  
Water Head ◽  
Constant Head ◽  
Constant Head Method

Falling head method (FHM) and constant head method (CHM) are, respectively, used to test the water permeability of permeable concrete, using different water heads on the testing samples. The results indicate the apparent permeability of pervious concrete decreasing with the applied water head. The results also demonstrate the permeability measured from the FHM is lower than that from the CHM. The fundamental difference between the CHM and FHM is examined from the theory of fluid flowing through porous media. The testing results suggest that the water permeability of permeable concrete should be reported with the applied pressure and the associated testing method.

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