The invention of a new type of hollow core slabs was a breakthrough at the turn of 20th and 21st centuries. During the first decade there have been many studies on the feasibility of using the new technology. This article presents the different types of hollow core slabs technology that have appeared over the last 15 years. As a result of the review the advantages of a new kind of hollow slab over a solid slab were summed up.In this article the most famous of present examples of the new technology are also demonstrated. All the experiments and studies carried out, mainly by manufacturer companies, are supported by regulations and local/international codes.