In my master's thesis, I showed the process of designing partial precast concrete filler slabs. These are two-way slabs and have a main lower rebar already installed. EPS fillings serve as lost filler blocks in tension zones, where concrete is poorly used and acts primarily as dead load. These precast concrete slabs shorten construction time since formwork is no longer needed at all because the precast elements act as formwork.
I designed these partial precast reinforced concrete slabs based on an actual case of flat slab construction used in building Kondominij Belle vie Tivoli in Ljubljana, which was built by Kolektor Koling d.o.o. in the years of 2017/2018.
For comparison, I also designed a classical concrete flat slab in thickness of 26 centimeters, which is somewhat heavier and requires a little more material, but the technology for its construction uses much less financial resources. For both cases, I made reinforcement construction plans and reinforcement extracts that could be used on the construction site. Based on the required quantities of materials, I analyzed and compared the cost of both designs of a 1087 square meter concrete slab.
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