Pervious Concrete Reinforced with Recycled Textile Fibers : Master's Thesis

Abstract

Glavna uloga propusnih betona je propuštanje vode s betonske površine u donje slojeve, sprečavanje površinskog otjecanja i efikasnije dimenzioniranje sustava odvodnje oborina. Glavni cilj ovog istraživanja je pronaći mješavinu propusnog betona koja ima zadovoljavajuću propusnost ali i čvrstoću, te ispitati utjecaj dodavanja recikliranih pamučnih vlakana na svojstva betona. Napravljeno je osam različitih mješavina koje su se međusobno razlikovale po sadržaja pojedine frakcije agregata, te prisutnosti tekstilnih vlakana. Sve mješavine su se ugrađivale na jednak način. Svojstva mješavina su ispitana u svježem stanju metodom oblikovanja kuglice i metodom slijeganja. Svojstva mješavina u očvrslom stanju ispitana su na tlačnu čvrstoću, savojnu čvrstoću, poroznost i propusnost.The main role of pervious concrete is the leakage of water from the concrete surface into the lower layers, prevention of surface run-off and more efficient sizing of the precipitation drainage system. The main goal of this research is to find a mixture of pervious concrete that has satisfactory permeability but also strength, and to examine the impact of adding recycled cotton fibers on the properties of concrete. Eight different mixtures were made, which differed in the content of each aggregate fraction and the presence of textile fibers. All mixtures were compacted in the same way. The properties of the mixtures were tested in the fresh state by the stable ball forming method and the slump test. The properties of mixtures in the hardened state were tested for compressive strength, flexural strength, porosity and permeability