In this study, silica fume and fly ash, both industrial byproducts,
were added to the manufacture of environmental
load reducing porous concrete, a bio-responsive eco-concrete,
to which terrestrial as well as aquatic microbes can
attach themselves. The porous concretes were then submerged
under river water in order for bio-film to develop
over the broad specific surface and internal continuous
pores. Subsequently, the strength property of the porous
concrete was evaluated according to the particle size of the
aggregate and the paste–aggregate ratio (P/G). In addition