I'm putting new steps in for my porch but the previous steps just landed in the dirt and I want to land them on concrete. directly in front of the steps is the concrete sidewalk area and so I want to bring the concrete about two feet closer to the porch for the steps. When pouring the concrete do I need a buffer/baffle/expansion thingamabob between the new concrete and the old? It will be about 6' by 2' and ~6 inches thick. Also, I'm using fiber reinforced concrete mix- would you recommend using rebar still? It 'says' no rebar needed with the fiber...

I would always rather DIY than pay someone but sometimes I have to be a realist. I want to build a 16x16 4" slab for a storage building. My helper's would wife and 14 year old son but most likely me doing the grunt work. So what can I do? I assume I need a concrete truck to deliver and not try and use bag concrete? If a truck delivers I think they charge by the hour. If I have to move concrete with a wheel burrow what is the working time for spreading and leveling before the concrete starts to set? What else do I need to consider? If I hire someone I am thinking it would be $2000 easy for them to do it. Thanks Wade