Appraisal of the Production and Properties of High Absorption Concrete (Pervious Concrete) in North Cyprus

Abstract

Pervious concrete or high absorption concrete which derives its name from its permeable nature is a permeable pavement structure with primary function to manage storm water in order to prevent flood while serving as a concrete structure where strength is the most important factor. Fines are systematically removed to create a porous structure which allows water penetrate. In this research, pervious concrete was produced with no fines. The samples contained aggregates with different gradations marked AB (16mm – 19mm), BC (14mm – 19mm), CD (12.5mm – 19mm) and DE (4.75mm – 19mm) with fineness modulus of 3.21 were tested for compressive strength, density, infiltration rate and porosity. The results show that the optimum mix of pervious concrete was obtained using aggregate gradation DE (4.75mm – 19mm). Relationship between aggregate gradation, its compressive strength, density, infiltration rate and porosity were obtained. The 28-day average compressive strength of this pervious concrete was 16.3MPA. The density obtained for the aggregate gradation DE (4.75mm – 19mm) was 1960kg/m3 with corresponding infiltration rate of 1476.6in/hr and porosity of 20.08%. keywords: Pervious Concrete; Compressive Strength; Infiltration Rate