You can hire a sledge hammer and crow bar from hss for about £15 for the weekend. Suggest you try these first to see how easily the concrete will break up. If these are unsuccessful you can always move on to something powered.
DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!