## 1 Introduction  
Fire is considered as one of the hazards that can substantially affect the integrity of the building that causes serious harm to human life and damage to the property. Ignition of hydrocarbon-based fuel is one of the common causes of high-intensity fire. Such types of fire experience a rapid rise in temperature from the flashover stage to about 1100 \({}^{\circ}\)C in just a few minutes [1; 2]. In such circumstances, the fire can cause severe damages to urban structures such as buildings, and hence, many lives may be affected. Various codes, such as ISO, have also specified the procedure for simulating the standard time-temperature relationship in the form of fire curves for different causes of fire, such as cellulosic and hydrocarbon fire curves. These standard fire curves are referred to in researching developing new passive materials as well as used by structural engineers for design and specification. In modern buildings, concrete is the most widely used material. Therefore, since the beginning of this century, advancements in the form and properties of concrete have been made. In a closed environment such as in industrial buildings, when a combustible material ignites, some other similar materials in the vicinity could also become part of the fire load to the building. In such situations, concrete acts as an insulator and resists heat transfer among different compartments [3; 4]. Therefore, concrete members are required to be designed to resist anticipated fire load. Although concrete has excellent fire endurance characteristics, it also has limits to its fire resistance and tolerance to high temperature. When concrete is subjected to beyond the limiting temperature regime, its properties and strength may be degraded [3; 5]. In the case of a reinforced concrete member, the effects of heat on the embedded steel reinforcement result in an expansion of the embedded steel bars. Hence, loss of bond around the steel and concrete surface occurs, which causes massive spalling of concrete. Structural members are designed to satisfy the requirements of ultimate and serviceability limit states for various specified conditions [6]. Therefore, analyzing the fire endurance of a given concrete and improving its performance, if needed, is becoming a field of interest for many researchers. In such efforts, concrete mechanical and thermal properties have been significantly enhanced using various types of admixtures and additives. For example, the inclusion of discrete fiber improves the tensile, post-cracking, and durability properties of concrete. This type of concrete is called fiber-reinforced concrete or FRC. FRC also increases in elastic deflection or ductility, elastic modulus, and energy dissipation. There are various kinds of fibers used in many FRC designs; such as metallic, synthetic, and natural fibers. In the 1990s in Japan, another form of concrete called self-compacting concrete, SCC, was developed, which can flow and consolidate by itself without the aid of mechanical compaction and placement technique. In some research studies, researchers have focused on investigating the performance of fiber-reinforced SCC or FR-SCC [7]. In such studies, research was focused on investigating the effects of metallic, synthetic, or natural fibers on the mechanical properties of SCC [7; 8; 9]. However, minimal research work is available on evaluating the performance of FR-SCC subjected to fire. [PERSON] [7] did an experimental study on FR-SCC using basalt and polyvinyl alcohol (PVA) fibers. The mechanical properties of such FR-SCC have shown promising enhancement in the mechanical and structural properties of the concrete in ambient conditions. [PERSON] et al. [10] performed an experimental investigation on FR-SCC under high-temperature conditions. In that study, polypropylene fibers were used, and the temperature limit was limited at 300, 500, and 700 \({}^{\circ}\)C. They found that the relative values of compressive strength slightly increased for FR-SCC as compared to SCC without the addition of fibers.