Edinburgh Napier University

  Urban areas worldwide grapple with ecological disruption due to overpopulation, exacerbated by impermeable concrete surfaces that hinder rainwater absorption, curb plant growth and foster urban heat islands. Innovative porous concrete applications were pioneered in developed countries in recent times, offering alternative solutions albeit with limitations in strength (typically less than 20MPa). These include pavement systems (e.g. sidewalks, bike paths, parking lots), flood control infrastructure, green roofs and decorative / landscaping features. This experimental study investigates engineering properties of porous concrete mixes, suitably designed for harsh climatic conditions, with the incorporation of admixtures. A series of destructive & non-destructive tests were conducted at different ages of the concrete specimens. Test results were analysed and compared to conventional concrete to evaluate the potential benefits of using porous concrete in Scotland. This research makes a valuable contribution to the existing body of knowledge on porous concrete and provides data of direct applicability to designers and contractors so that they make more informed decisions about porous concrete applications, while considering environmental effects.