Experimental and numerical study on the model of hybrid fiber phase change concrete frozen shaft wall.

ABSTRACT: In this study, phase change materials (PCMs) were innovatively incorporated into hybrid fiber concrete. The properties of PCMs, which absorb and release heat during phase transitions, enable the concrete to actively respond to complex and varying temperature environments. This integration reduces the internal temperature differentials within the concrete, thereby preventing temperature-induced cracks in deep wellbore structures. Through the temperature control model test of the frozen shaft wall, it can be seen that the hybrid fiber phase change concrete (HFPCC) significantly reduces the internal temperature difference, and the maximum temperature difference along the radial direction is 35.84% lower than that of benchmark concrete (BC). The numerical simulation results indicate that a mod

SUBMITTER: Li D 

PROVIDER: S-EPMC11309396 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature