TY  - JOUR
AV  - none
N2  - Efficient load transmission between concrete and steel reinforcement by bonding action is a key factor in the process of the design procedure of bar-reinforced concrete structures. To enhance the bond strength of steel/concrete composites, the impact of graphene nanoplatelets (GnP) on the bond stress and bond stressâ??slip response of deformed reinforcement bars, embedded in high-per-formance concrete (HPC), was investigated using bar pullout tests. In the current study, 36 samples were produced and examined. The main variables were the percentages of GnP, the steel reinforcement bar diameter, and embedded length. Bond behavior, failure mode, and bond stress-slip response were studied. Based on the experimental findings, the inclusion of GnP had a significant favorable influence on the bar-matrix interactions due to the bridging action of GnP as a nano rein-forcement. For 0.02 wt. of GnP, the bond strength was enhanced by more than 41.28 and 53.90 for steel bar diameters of 10 and 16 mm, respectively. The HPC-GnP mixture displayed a reduction in the initial slippage in comparison to the control sample. The test findings were compared to the prediction models created by other researchers and the ACI 408R-12 code. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
IS  - 22
N1  - cited By 7
KW  - Bond strength (materials); Concrete testing; Failure (mechanical); Failure modes; High performance concrete; Reinforced concrete
KW  -  Bond stress; Bond stress-slip be-havior; Graphene nano platelet; Graphene nanoplatelets; High-performance concrete; Load transmission; Nanoplatelet; Pull-out test; Slip response
KW  -  Graphene
ID  - scholars14280
TI  - Investigation of the impact of graphene nanoplatelets (Gnp) on the bond stress of high-performance concrete using pullout testing
Y1  - 2021///
SN  - 19961944
PB  - MDPI
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85119904284&doi=10.3390%2fma14227054&partnerID=40&md5=8bfd270a509f988ab1ca8d3d6fada1f4
JF  - Materials
A1  - Ismail, F.I.
A1  - Abbas, Y.M.
A1  - Shafiq, N.
A1  - Fares, G.
A1  - Osman, M.
A1  - Hussain, L.A.
A1  - Khan, M.I.
VL  - 14
ER  -