Naslov
Shrinkage Behaviour of Fibre Reinforced Concrete with Recycled Tyre Polymer Fibres

Autori
Serdar, Marijana ; Baričević, Ana ; Jelčić Rukavina, Marija ; Pezer, Martina ; Bjegović, Dubravka ; Štirmer, Nina

Izvornik
International Journal of Polymer Science (1687-9422) 2015 (2015); 145918-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
recycled tyre polymer fibres ; autogenous shrinkage ; free shrinkage ; restrained shrinkage

Sažetak
Different types of fibres are often used in concrete to prevent microcracking due to shrinkage, and polypropylene fibres are among the most often used ones. If not prevented, microcracks can lead to the development of larger cracks as drying shrinkage occurs, enabling penetration of aggressive substances fromthe environment and reducing durability of concrete structures. The hypothesis of the present research is that polypropylene fibres, used in concrete for controlling formation of microcracks due to shrinkage, can be replaced with recycled polymer fibres obtained from end- of-life tyres. To test the hypothesis, concrete mixtures containing polypropylene fibres and recycled tyre polymer fibres were prepared and tested. Experimental programme focused on autogenous, free, and restrained shrinkage. It was shown that PP fibres can be substituted with higher amount of recycled tyre polymer fibres obtaining concrete with similar shrinkage behaviour. The results indicate promising possibilities of using recycled tyre polymer fibres in concrete products. At the same time, such applications would contribute to solving the problem of waste tyre disposal.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Temeljne tehničke znanosti

POVEZANOST RADA