A comprehensive study of serviceability behaviour of slabs on grade

Abstract

A slab on grade is simply a slab constructed on earth or ground. Often these types of slabs are encountered in the industrial practice. There are several types of slabs on grade commonly used such as pavement slabs found in footpaths, walk ways, airport runways, highways, basement floors and bottom slab of swimming pools. The observed behaviour of these slabs is such that most of them are cracked due to serviceability problems or construction defects. This study is aimed at investigating the time dependent behaviour both at short term and long term conditions due to creep, shrinkage of concrete and relaxation of steel.