Open AccessImpact of fibre incorporation and compaction method on properties of pervious concrete
Author(s) -
Sandra Juradin,
Ivanka Netinger Grubeša,
Silvija Mrakovčić,
Dražan Jozić
Publication year - 2021
Publication title -
materiales de construcción
Language(s) - English
Resource type - Journals
eISSN - 1988-3226
pISSN - 0465-2746
DOI - 10.3989/mc.2021.08020
Subject(s) - compaction , pervious concrete , materials science , porosity , composite material , permeability (electromagnetism) , hammer , geotechnical engineering , aggregate (composite) , cement , geology , metallurgy , membrane , biology , genetics
This paper deals with the possibility of the improvement of pervious concrete properties by incorporation of different types of fibres and studies the effect of short duration vibration of pervious concrete properties in comparison with compaction with wooden lath and hammer. Ten mixtures of pervious concrete were prepared, five of which were compacted with wooden lath and hammer and five by short duration vibration. Density, porosity, permeability and mechanical properties were tested for in hardened pervious concrete specimens. It was concluded that mixtures compacted by short duration vibration had better mechanical properties due to the formation of a viscous layer at the contact surface between the aggregate grain and the cement matrix during the compaction, as well as pore-related properties. The addition of fibres negatively affected porosity and permeability but generally improved mechanical properties of concrete. The positive effect of fibre addition was more emphasised in cases of vibrated mixtures.