Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Steel and Composite Structures Volume 34, Number 6, March25 2020 , pages 877-889 DOI: https://doi.org/10.12989/scs.2020.34.6.877 |
|
|
|
Investigating loading rate and fibre densities influence on SRG - concrete bond behaviour |
||
Hashem Jahangir and Mohammad Reza Esfahani
|
||
| Abstract | ||
| This work features the outcomes of an empirical investigation into the characteristics of steel reinforced grout (SRG) composite - concrete interfaces. The parameters varied were loading rate, densities of steel fibres and types of load displacement responses or measurements (slip and machine grips). The following observations and results were derived from standard single-lap shear tests. Interfacial debonding of SRG - concrete joints is a function of both fracture of matrix along the bond interface and slippage of fibre. A change in the loading rate results in a variation in peak load (Pmax) and the correlative stress (max), slip and machine grips readings at measured peak load. Further analysis of load responses revealed that the behaviour of load responses is shaped by loading rate, fibre density as well as load response measurement variable. Notably, the out-of-plane displacement at peak load increased with increments in load rates and were independent of specimen fibre densities. | ||
| Key Words | ||
| bond properties; failure mode; steel reinforced grout (SRG); single-lap shear test; concrete substrate | ||
| Address | ||
| Hashem Jahangir and Mohammad Reza Esfahani: Department of Civil Engineering, Ferdowsi University of Mashhad, Azadi Square, Mashhad, Razavi Khorasan, Iran | ||