Comparison of the post-tensioned, solid, hollow block, and flat slabs in terms of economy considering different span lengths

From among the several types of slabs, there is uncertainty about most cost-effective one for structures with short, medium, and long spans. A study comparing cost solid, flat, hollow block (HB), post-tensioned (PT) slabs 4, 6, 8m spans was conducted using SAFE software. For each span length, total quantities concrete steel bars were found compared 4 slabs. Then, bars, concrete, blocks, tendons, formwork tabulated compared. The findings revealed that quantity in 6m least HB while spans, PT slab. Besides, 8 In terms economy, option flat slab 4m savings 14, 9, 17% to HB, respectively. On other hand, 6 slab, 10, 6% span, 20, 22% Therefore, more, offer significant savings.