EARLY-AGE CRACK IN CONCRETE IN PEDESTAL STRUCTURES OF SLEEPERS

Cracking in reinforced concrete structures has always been a practical topic discussed by many articles in Vietnam as well as around the world. Many causes could lead to cracking and cracks also can occur at different ages of concrete. Cracking affects the reinforcement corrosion along with the service life of a reinforced concrete structure. Moreover, fractures in concrete influence the appearance of a building, and in some cases provoke the users' feeling of insecurity. Therefore, crack control is often required in many standards for reinforced concrete structures globally. This article presents the sources of cracking at early-age concrete in sleeper pedestal structures of urban railways.