FraMCoS 9 2016 Berkeley, California, USA

Fatigue-induced Fracture of Pervious Concrete: Physical and Numerical Experimentation

Two types of pervious concrete are used to form small-scale specimens, which are subjected to fatigue loading. The first type is produced with a gap-grading of natural aggre- gates; the second type is produced with monosized spherical aggregates. Loading is…

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Year 2016
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Abstract

Two types of pervious concrete are used to form small-scale specimens, which are subjected to fatigue loading. The first type is produced with a gap-grading of natural aggre- gates; the second type is produced with monosized spherical aggregates. Loading is applied via constant amplitude displacement cycles and reduction in specimen compliance is monitored. Loading is stopped at various stages prior to specimen failure to enable the investigation of damage progression using dye impregnation techniques. The second type of pervious concrete, based on spherical aggregates, lends itself to computer modeling. With respect to the aggre- gate positions, a one-to-one correspondence is sought between the experimental and numerical models. With further developments, this combined use of physical and numerical experimenta- tion will provide insight into the roles of paste distribution and the interface phase on pervious concrete performance under fatigue loading.