Pervious concrete layer is one of the effective concrete pavement mixes to address a number of important
environmental issues, such as recharging groundwater and reducing storm water runoff. Portland
Cement Pervious Concrete (PCPC) is produced by eliminating most or all of the fine aggregate in the
mix, which allows interconnected void spaces to be formed in the hardened matrix. These interconnected
void spaces allow the concrete to transmit water at relatively high rates. Twenty-four PCPC mixtures
were prepared and tested to address the effect of different size fractions of coarse aggregate, water-tocement
ratio, cement content, and coarse aggregate volume on the relationships between compressive
strength, tensile strength, porosity, and permeability. The mixtures used in this study consisted of either
one or two aggregate sizes. Linear regression relationships were developed to establish relationships
between density and porosity, compressive strength and permeability, tensile strength and permeability,
and compressive strength and porosity. The results showed that properties such as permeability, porosity,
are significantly affected by using either one or two coarse aggregate sizes in all concrete mixtures.
Furthermore, density can be an effective factor for predicting compressive strength, and porosity. In this
study, the maximum compressive strength was 6.95 MPa, which obtained by using one aggregate size of
9.5 mm with 250 kg/m3 cement content. The obtained results showed that PCPC could be produced using
one or two aggregate sizes at most.
Pervious concrete layer is one of the effective concrete pavement mixes to address a number of importantenvironmental issues, such as recharging groundwater and reducing storm water runoff. PortlandCement Pervious Concrete (PCPC) is produced by eliminating most or all of the fine aggregate in themix, which allows interconnected void spaces to be formed in the hardened matrix. These interconnectedvoid spaces allow the concrete to transmit water at relatively high rates. Twenty-four PCPC mixtureswere prepared and tested to address the effect of different size fractions of coarse aggregate, water-tocementratio, cement content, and coarse aggregate volume on the relationships between compressivestrength, tensile strength, porosity, and permeability. The mixtures used in this study consisted of eitherone or two aggregate sizes. Linear regression relationships were developed to establish relationshipsbetween density and porosity, compressive strength and permeability, tensile strength and permeability,and compressive strength and porosity. The results showed that properties such as permeability, porosity,are significantly affected by using either one or two coarse aggregate sizes in all concrete mixtures.Furthermore, density can be an effective factor for predicting compressive strength, and porosity. In thisstudy, the maximum compressive strength was 6.95 MPa, which obtained by using one aggregate size of9.5 mm with 250 kg/m3 cement content. The obtained results showed that PCPC could be produced usingone or two aggregate sizes at most.
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