Burnout Fibers

Polymeric burnout fibers are strategically incorporated into refractory concrete to address the challenge of potential cracking during the heating process. These fibers, typically composed of materials that decompose or burn at elevated temperatures, are added to the concrete mix. During the initial stages of heating, these polymeric fibers undergo a burnout process, leaving behind voids in the material. This controlled burnout allows for the escape of any moisture or water vapor present in the concrete as steam, preventing the internal pressure buildup that could lead to cracks.

The voids created by the burned-out polymeric fibers serve as pathways for the controlled release of steam, effectively minimizing the risk of internal stresses within the refractory concrete. This controlled burnout process is crucial in preventing cracks that could compromise the structural integrity of the material. By providing a systematic way for moisture to escape during heating, the polymeric burnout fibers contribute to the overall durability and performance of the refractory concrete, particularly in applications where exposure to high temperatures is common.