Precast

About the Technology

Waffle units are open box type precast RC units, upto 1.2 m in size. Casting of units is done in steel/timber moulds with steel weld mesh reinforcement. After curing, they are assembled over the shuttering in a grid pattern leaving a space of 10 to 17 cm between the units.

Technical SpecificationsPrecast

  • Cement requirement : 41.5kg/m2
  • Steel requirement : 7.7kg/m2

Salient Features

  • Uses green technology with lower carbon foot-print and lower embodied energy.
  • Can be cast and assembled manually or by using machines for larger housing projects.
  • Preferred in construction of two-way slabs of large span (above 90 m).
  • Saves construction cost and time.
  • Incorporated in BIS Codes, CPWD and several State Schedules.
  • Implemented in U.P., M.P., Uttarakhand, A.P., Haryana etc for the construction of several halls.
  • Offers aesthetically pleasing ceiling.

Economic Aspects

  • Cost effective, saves upto 30% construction cost with respect to RCC slabs