TT slab or Double Tees are a reasonable choice for flooring and roofing with greater spans and imposed loading. The TT slab is spanning a long space and can minimize or even eliminate columns. Precast prestressed concrete TT slab has a ribbed cross-section.
TT slab – an excellent choice for an economical floor or roof system
The installed Double Tees can be painted, but usually, they remain as is.
The slabs are usually manufactured with two standard widths: 2400 mm and 3000 mm. Elematic provides special molds for TT slab production. The units can also be manufactured in a smaller width to meet a particular project’s requirements. The minimum width is 1500 mm, and the standard height of 500 mm to 1000 mm. The standard TT slabs have a minimum fire resistance of 60 to 120 minutes.
Anchor rails can be cast into the soffits of the webs and holes formed in TT slabs during the casting. It is also possible to make circular holes in the webs to provide a passage for services. The slabs are also supplied with four cast-in lifting hooks, each over the line of the webs.
Double Tees are used as roof deck elements or sometimes as floor elements for all types of buildings. TT slab is a popular roof solution in large open-space premises like parking buildings, sports facilities, manufacturing halls.
Advantages of TT slab
- High load-bearing capacity
- Usable for large spans