The impact of the mineral admixtures on the properties of porous concrete : Master's Thesis

Porozni beton je posebna vrsta betona koja se koristi prvenstveno kod izgradnje kolnika. Zahvaljujući njemu, moguće je smanjiti otjecanje oborinskih voda, pohranjivati oborinske vode te na taj način osigurati dodatnu infiltraciju, poboljšati kvalitetu oborinskih voda i slično. Cilj ovog istraživanja je ispitati svojstva poroznog betona s mineralnim dodacima te ih usporediti s prethodnim istraživanjima. Izrađeno je osam mješavina poroznog betona. Ispitana su i analizirana sljedeća svojstva: konzistencija, poroznost, propusnost, tlačna čvrstoća te vlačna čvrstoća cijepanjem. U ovom istraživanju se nastojalo izraditi optimalnu mješavinu poroznog betona s mineralnim dodacima koja bi imala zadovoljavajuću čvrstoću i propusnost.Porous concrete is a special type of concrete that is primarily used for the construction of the roadway. Thanks to this kind of concrete, it is possible to reduce the rainwater run-off, to store the rainwater run-off and by that ensure the additional infiltration, to increase the quality of the rainwater run-off, etc. The aim of this study is to examine the properties of porous concrete with the mineral admixtures and to compare them with the previous studies. Eight mixtures of porous concrete were made. They were tested and analyzed by the following characteristics: consistency, porosity, permeability, compressive strength and tensile strength by splitting. In this study, there was an attempt to make an optimal mixture of porous concrete with the mineral admixtures which would have sufficient strength and permeability