Investigation of permeability and clogging potentials of pervious concrete produced with different aggregate types

In this thesis study, the properties of pervious concrete produced using three different types of aggregates: natural aggregate, crushed stone aggregate, and recycled concrete aggregate, were examined. These aggregates were divided into gradations within two different sieve ranges (4.00 - 11.2 mm and 11.2 - 22.4 mm), resulting in a total of 6 (six) series of concrete samples, produced in the shapes of 10 cm x 10 cm x 10 cm cubes and 10 cm x 20 cm cylinders. Tests were conducted to determine the void ratios, unit weight, compressive strength, splitting tensile strength, ultrasonic pulse velocity, permeability levels, and the changes in permeability levels of samples subjected to clogging with clay and sand. The results of the experiments indicated that different types of aggregates have significant effects on the physical, mechanical, and permeability properties of pervious concrete. Particularly, variations in parameters such as void ratio, compressive strength, and permeability levels were observed depending on the type of aggregate and the sieve range. These results demonstrate that selecting the appropriate aggregates for the production of pervious concrete is critically important for optimizing the concrete's performance and durability.