STUDY ON SERVICE LIFE OF OPC AND HPC IN MARINE ENVIRONMENT

摘要

In this paper, ordinary Portland cement concrete (OPC) and high performance concrete (HPC) were used in the marine environment exposure experiments, Using the second Fick's law, five parameter of life prediction model—binding ability, diffusion coefficient of free CI-, time-dependent parameters, chloride ion concentration of surface and degradation effect coefficients are confirmed.The service life of OPC and HPC in ocean conditions is calculated and compared using mathematic software in atmosphere region、underwater region and tidal zone.