## 1 Introduction  
The strong bonding properties between rebar and concrete are important indicators for judging whether the concrete can be used in engineering structures, and they are crucial for the design of concrete structures [1]. In practical engineering, the most common way to improve bond strength is to use ribbed rebar [2]. Therefore, the study of bonding properties between ribbed rebar and concrete is of significant research interest. The bonding properties between ribbed rebar and concrete are mainly composed of three parts: chemical adhesion, the friction force, and the mechanical occlusion force [3]. All three components of bond stress are closely related to the properties of the concrete. Ordinary concrete (OC) has the disadvantages of poor frost resistance, insufficient toughness, and poor impact resistance in practical engineering applications [4; 5; 6]. Therefore, scholars have attempted to incorporate rubber granules or rubber powder in concrete to replace coarse and fine aggregates. These practices not only reduce the apparent density of concrete but also reduce its elastic modulus. Also, they increase the toughness and impact resistance of concrete [7; 8; 9; 10] and improve its frost resistance [11]. In addition, the incorporation of rubber particles into concrete also has the practical significance of environmental protection and resource utilization by reducing the \"black pollution\" [12; 13; 14] caused by the improper disposal of waste rubber. However, when investigating their bonding properties, it was found that when rubber granules of different dosages and particle sizes were incorporated into concrete, they would cause its bond strength to decrease to different degrees. A small dosage of rubber granules had a smaller effect on the bond strength of the concrete. [PERSON], [PERSON] et al. [15] found that the bond strength of concrete decreased when increasing amounts of rubber granules were added. After a compound treatment with rubber granules, the bond strength improvement was more significant. [PERSON], [PERSON] [16] found a non-linear relationship between the rubber granule dosage and the bond strength, which decreased with increasing rubber granule dosages. Additionally, as the rebar diameter increased, the bond strength of threaded-steel rebar-rubber concrete increased and then decreased, and the bond strength of light round rebar-rubber concrete showed an increasing trend. [PERSON] et al. [17] found that when rubber particles were incorporated at 5%, the bond strength was only 3% lower than that of ordinary concrete and then decreased rapidly. Scholars have also found that when basalt fibers were incorporated into concrete, they equally enhanced the durability and fatigue resistance of the concrete [9; 10; 18; 19; 20; 21; 22]. Scholars have researched the bonding properties and found that the inclusion of basalt fibers does not significantly reduce the bonding properties and that an appropriate amount of admixture could enhance the bond strength. [PERSON], [PERSON] et al. [23] found that when basalt fibers were mixed into concrete, the bond anchorage properties of the rebar and concrete failed to show a positive impact. When the length of the fibers increased, the bond strength between the concrete and rebar showed an upward trend. [PERSON] [24] found that the bonding properties of basalt-fiber-reinforced plastics (BFRP) and basalt fiber concrete were related to the bonding length. The average bond strength decreased with increasing bonding lengths. When the fibers had a content of 0.1%, the bond performance was enhanced the most compared to OC. As a new type of cement-based concrete, rubber granule-basalt fiber composite modified concrete (RBFC) combines the advantages of both concrete types, including high durability, high toughness, and high strength [25; 26]. Research on the bonding properties of RBFC and rebar is an important part of promoting the application of RBFC in engineering structures.