Bonding properties of amorphous micro-steel fibre-reinforced cementitious composites

An orthotropic material model for steel fibre reinforced concrete based on the orientation distribution of fibres

“…As soon as cracks are occurring in the tension zone, the deformations start to grow rapidly and the member breaks suddenly in a brittle manner. Accordingly, SFRC has a similar brittle character since the failure regime of SFRC is largely determined by the mode of the loss of bond strength on fibre-concrete interface, and this is rather brittle than ductile [47]. The brittle behaviour of SFRC was also proven by the experimental results received within the present research [13].…”

“…with [36,47]. As a consequence of the chemical bond assumed, the average strain considered is an equivalent strain, which includes the strains of both concrete and steel fibres.…”

Bonding behaviour of arch-type steel fibres in a cementitious composite

“…Fig. 4 shows how the steel fibre was centrally anchored after dividing a dog-bone-shaped specimen into two parts [15]. Test specimens were initially cured at 23 ± 2°C and a relative humidity of 50% for 24 h and then immersed for 28 days in a water tank maintained at 23 ± 2°C.…”

Comparisons Between Pull-Out Behaviour of Various Hooked-End Fibres in Normal–High Strength Concretes

“…The post-cracking behaviour of SFRC is closely related to the bond characteristics between the fibre and the matrix (Won et al 2013;Abdallah et al 2017c, d). The efficiency of fibres in bridging cracks depends upon the bond mechanisms associated with the pull-out behaviour (Islam and Alam 2013;Li and Liu 2016;Abdallah et al 2017b).…”