Review of Researches on Carbonization of Concrete: Influencing Factors and Forecast Models

摘要

This paper reviews the state-of-art of researches on the carbonization of concrete. The influencing factors are concluded as two aspects as the internal concrete and the external environment and service conditions. The main internal factors include the cement and admixtures, the water to cement ratio, the concrete strength and others such as the type, grading and size of aggregate and the additives. The main external factors include the concentration and pressure of carbon dioxide, the temperature and relative humidity of environment, the curing and service conditions and the loading states. The typical forecast models of carbonized depth of concrete based on the fundamental reaction engineering principles, the lab experimental results and the practical engineering investigations are summarized for the reference of further study.