Pre-StiRex Corrugated Sheathing ducts, Plus + StiRex ducts and flat ducts, manufactured from HDPE, have a unique application in the field of internal bonded post tensioning of tendons in pre-stressed concrete viz. projects such as flyovers and bridges, nuclear containments, offshore platforms, via ducts, underpasses, tunnels etc. Flat ducts are especially popular in the construction sectors where use of round section ducts in post tensioned slabs is not possible due to the slab thickness constraints.
HDPE sheathing in coils requires fewer joints than conventional sheathing. Its light weight reduces the need for manpower and heavy equipment handling. Total installation time can be reduced considerably.
Jointing with Buttwelding: |
Snapfit Couplers: |
Heat Shrink Sleeves: |
Split Couplers: |
Other Accessories
Quality Assurance :
Quality Control :
The "Pre-StiRex" ducts are subjected to stringent testing for a wide range of field parameters.Compliance of various standards and regulations such as Fib, IRC, NPCIL etc. is always observed.
Vital Testing Parameters :
Raw Material testing |
Flexibility Test Measuring Device |