Naslov
Steel Fibres in Sprayed Concrete

Autori
Akrap, Nedjeljko ; Domazet, Ante ; Ferić, Kajo ; Marušić, Elica

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Fibre Reinforced Concrete in Practice / Pauser, Michael - Graz : Austrian Society for Concrete and Construction Technology, 2005, 19-23

Skup
1st Central European Congress on Concrete Engineers

Mjesto i datum
Graz, Austrija, 08.09.2005. - 09.09.2005

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
mlazni beton; čelična vlakna; preostala čvrstoća
(sprayed concrete; steel fibres; residual strength)

Sažetak
This study deals with experimental results obtained by testing properties of sprayed concrete made with addition of steel fibres. Tested properties are compressive strength, flexural strength and residual strength at required deflection. Laboratory mixes of concrete were prepared in order to observe the influence of changes in quantity of steel fibres and changes of aspect ratio of steel fibres on the properties of sprayed concrete. Changes in quantities of steel fibres were taken into consideration together with changes in quantities of cement in concrete. Compressive strength was tested at the age of 28 days on cubes and cores ; flexural strength and residual strength were tested on concrete prisms at the age of 28 days as well as on the specimens cut from test panels. Laboratory mixtures were made both without additives and with addition of different additives, accelerators and superplasticizer in order to find the optimal composition for application in tunnels. Maximum aggregate size was 8 mm.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA