Restrained shrinkage is an important issue in design of concrete industrial ground floors, although it is often overlooked. This paper studies shrinkage behaviour of a SFRC floor subjected to static racking load, through FE simulation. The ultimate load bearing capacity and cracking of the floor is assessed. It is shown that shortly-spaced surface micro-cracks are formed due to shrinkage. These cracks are not initially visible, but get longer and wider after loading. As a result, the load-carrying capacity of the floor reduces significantly, and the equivalent crack opening by up to 10 times.
JAFARIFAR, N. and SABBAGH, A.B. 2015. Shrinkage behaviour of SFRC industrial ground floors. Presented at the 35th Cement and concrete science conference (CCSC35), 26-29 August 2015, Aberdeen, UK.