Fiber-reinforced concrete (FRC) helps control shrinkage cracks, improves durability against corrosion and freeze-thaw cycles, and is especially effective near cold joints. Question: Difference between a contraction joint, isolation joint, expansion joint, construction joint, an. ete - Joint ACI-ASCC (310). A cold joint in concrete is an area or surface with a structural discontinuity caused by the delayed concrete pouring between two layers of concrete. The delayed placement prevents full integration and knitting between the concrete batches and might lead to reduced structural robustness, increased. Instead, polypropylene fibers were used as an effective alternative to enhance crack resistance and ensure structural integrity. Four-point bending tests were carried out under static loading conditions using a laboratory compression testing machine. The model sizes are (40, 60, 80, and 100 mm) in. The types of concrete used in this study include normal concrete with 35 MPa compressive strength, concrete with high initial compressive strength using superplasticizer, and concrete using polypropylene fiber as added material. The CONTROL JOINT family includes options like FIBRE, ASPHALT, CERAMAR ®, SPONGE RUBBER, and both standard and SELF-EXPANDING. These filler materials used to fill the concrete gaps or spaces are known as joint filler. Following are the few types of filler materials.