This document discusses the advantages of post-tensioning slabs compared to reinforced concrete slabs. Post-tensioning slabs allows for larger column-free spans, faster floor-to-floor construction times of around 10 days per slab, and thinner slabs which reduce costs and increase seismic resistance. Additional advantages include earlier stripping of formwork below 10 days, reduced reinforcement and materials quantities, fewer workers required, potential for additional floors in height-restricted areas, reduced vertical structure costs, and greater flexibility for services, ceilings, and openings.

4. WORKING SEQUENCE
PT Flat slab after Deshuttering.
STEP 17

5. ADVANTAGES / SAVINGS BY POST TENSIONING SLABS.
1 Column free space/Larger span for commercial/shopping complexes.
2 Speedy Floor to Floor construction cycle time( 10 days per slab) due to
implified formwork and reduced quantities of materials.
3 Reduction in Dead load due to Thinner slab which will make cost savings
in foundation and columns design and more resistant to seismic forces.
4 Due to Post Tensioning, earlier stripping of formwork ie, below 10 days,
thus achieving higher recycling of shuttering .
5 Reduction of reinforcement Quantity and easy handling of Post Tensioning
Materials in congested site areas.
6 Less no of work force engaged for Post Tensioning works than RCC slabs.
7 Reduction in overall building Height, therby additional floors are possible
in height restricted zones.
8 Reduction of cost in vertical structural element.
9 Flexibility for providing service ducts and False ceilings.
10 Greater Flexibility for penetrations and openings in floors,both pre and
post construction
Cost comparison Utraco 3/3/2010