Tensile behaviour of ultra-high-performance steel fiber reinforced concrete

Yang, Yuechen; Ismail, Mohammed; Pantazopoulou, Stavroula J.; Palermo, Dan

doi:10.1139/cjce-2019-0592

Cited by 6 publications

(2 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The CDP model is a widely used concrete constitutive model in the world [46]. It has become an important reference for concrete structure design [47]. The mathematical expression of the constitutive model is as follows (3): 1.45 +(ε/ε p ) ε/ε p > 1 (7) Equation ( 7) is used to fit the measured σ − ε curve, and the fitted curve is shown in Figure 10.…”

Section: Axial Tensile Stress-strain Constitutive Model Of Ncmentioning

confidence: 99%

Tensile Mechanical and Stress-Strain Behavior of Recycling Polypropylene Fiber Recycled Coarse Aggregate Concrete

Wang,

Liang,

et al. 2024

Buildings

View full text Add to dashboard Cite

To effectively recycle waste petroleum products and construction waste, recycling polypropylene fiber (RPF) and recycled aggregate can be mixed into concrete to make RPF recycled coarse aggregate (RCA) concrete. In this study, the RPF recycled from a polypropylene (PP) packaging belt was used as the test material and manually cut into the shape required for the experiment. The effects of RCA and RPF on the tensile mechanical behavior of concrete are researched. The failure modes and constitutive relationship of the specimens under axial tension and splitting tension are further investigated. The results show that the axial tensile strength of RPF RCA concrete first increased and then decreased with the increase in fiber volume content, and was the largest when the fiber volume content was 1.5%, and its strength increased by 21.14% compared with that of recycled concrete. Its lifting rate relative to recycled concrete is between 13.14–21.41%. The change trend of axial tensile strength with the substitution rate of RCA is that it decreases with the increase in substitution rate, and the substitution rate decreases by 9.64% when the substitution rate is 100% compared with 0%.The peak strain first increased and then decreased with the increase in fiber volume content, and the maximum fiber volume content was 1.5%, which increased by 28.19% compared with that of recycled concrete. The peak strain first increased and then decreased with the increase in fiber length-diameter ratio, and the maximum length-diameter ratio was 47.85, which increased by 18.22% compared with that of recycled concrete. The peak strain increased with the increase in the replacement rate of RCA, and the peak strain at 30%, 60% and 100% was 96.22%, 102.45% and 118.09% when the replacement rate was 0%, respectively.

show abstract

Section: Axial Tensile Stress-strain Constitutive Model Of Ncmentioning

confidence: 99%

Tensile Mechanical and Stress-Strain Behavior of Recycling Polypropylene Fiber Recycled Coarse Aggregate Concrete

Wang,

Liang,

et al. 2024

Buildings

View full text Add to dashboard Cite

show abstract

“…Recent developments in the area of ultra-high-performance steel fiber reinforced concrete (UHP-SFRC) have enabled a reduction in the use of steel reinforcement and have led to enhanced ductility and toughness of structural components owing to its resilient tensile behaviour. The paper by Yang et al (2021) presents the results of an experimental study that was conducted to investigate the tensile behaviour of UHP-SFRC. Four commercial mixes and two in-house mixes were evaluated using the procedures prescribed in the 2019 edition of Annex U of CSA-A23.1 and Annex 8.1 of CSA-S6 2018.…”

Section: Shahria Alam and Murat Saatcioglumentioning

confidence: 99%

Special Issue — Advances in reinforced concrete

Alam

Saatçioğlu

2021

Can. J. Civ. Eng.

View full text Add to dashboard Cite

Investigating the effect of steel micro‐ and macro‐fibers on the bond behavior of steel rebar embedded in ultra‐high performance concrete

Aghdami Sani,

Ferdousi,

Pourbaba

et al. 2024

Structural Concrete

View full text Add to dashboard Cite

In recent years, the use of ultra‐high performance concrete (UHPC) has been widely considered in special structures and retrofitting of existing structures. Since most of the relations proposed by the regulations are based on the behavior of concrete with normal strength concrete, it is necessary to conduct more experimental studies to predict the behavior of UHPC. One of these notable behaviors is the bond and cohesion between rebar and UHPC, which plays a critical role in the design and seismic behavior of structures. In the present study, a series of experimental tests of uniaxial compressive strength, splitting (Brazilian) tensile strength, elastic modulus, and pull‐out of ribbed steel bars from ultra‐high performance fiber‐reinforced concrete (UHPFRC) were performed. The tests were done considering the four‐volume fractions of hooked‐end steel macro‐fibers, straight steel micro‐fibers, a hybrid combination of these two fibers, three different diameters of ribbed steel bars, and several embedded lengths. Moreover, direct tensile and compressive stress–strain curves, Young's modulus, bonding properties of rebar with UHPFRC, and fracture mechanisms were considered. The results indicated that applying micro‐fibers may enhance the bond stress between rebar and UHPC better than macro‐fibers. Also applying hybrid fibers resulted in the concurrent enhancement of bond stress and the optimum point slip of UHPC in the stress–slip diagram. This finding maybe attributed to the satisfactory performance of micro‐fibers in reducing the growth speed of micro‐level cracks and the suitable effect of macro‐fibers in decreasing the progression speed of macro‐level cracks. Furthermore, it was revealed that the increase in rebar diameter and embedding length leads to the reduction of maximum bond stress in UHPFRC.

show abstract

Tensile behaviour of ultra-high-performance steel fiber reinforced concrete

Cited by 6 publications

References 65 publications

Tensile Mechanical and Stress-Strain Behavior of Recycling Polypropylene Fiber Recycled Coarse Aggregate Concrete

Tensile Mechanical and Stress-Strain Behavior of Recycling Polypropylene Fiber Recycled Coarse Aggregate Concrete

Special Issue — Advances in reinforced concrete

Investigating the effect of steel micro‐ and macro‐fibers on the bond behavior of steel rebar embedded in ultra‐high performance concrete

Contact Info

Product

Resources

About