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Question:

How the heck do you pour a concrete floor on a 2nd or 3rd story?

I noticed in Mexico as well as in some middle eastern countries their entire buildings are made from concrete including the floorsFor example they have 3 story apartments built with each floor made from concreteHow the heck do you pour a concrete floor on a 2nd or 3rd story?

Answer:

Ceramic Fiber Blanket from okorder
What do you think the floors are made of in almost all skyscrapers, hospitals and other massive buildings? All the floors in the NY World Trade center towers were poured concreteI am sitting in a 5 story building myself made entirely of concreteThe answer is that concrete is a liquid in its initial form and it can be pumped through pipes and large hoses to whatever height it needs to be pouredThe Discovery Channel has shown some documentaries of high-rise construction on their Extreme Engineering program that depict these concrete pumping operationsI've worked in construction for over 30 years and have seen it many timesYou could probably find videos of the pumpers on YouTubeTwo or three story houses are easyAlmost any concrete contractor has pumps and boom-mounted hoses that can reach up that farAlso, some houses and other buildings can be made using pre-cast concrete planks, which are huge sections of floor that are cast on the ground, with reinforcement like rebar and stressed cables inside for strength, and then the slabs are lifted with a crane and laid on a concrete block or steel frameOne all the planks that make a floor are set, a thin layer of concrete grout is poured over the top - in that case it looks like a solid concrete pour over the whole levelWhere concrete is poured on upper floors it goes onto a formed steel pan supported by the structure below, or a temporary wooden platform that then gets stripped off once the concrete hardens and cures,
Generally fiberglass battingYou can observe it at any Lowe's or Home Depot.

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