Threaded Bar Solutions

Standard Corrosion Protection (SCP)

Solid bar (mono), hot rolled, with continuous thread serves as the steel reinforcement (tendon). SCP micropiles can be used for permanent application in low corrosive environment for compression load case. For tensile load case in low corrosive environment, it can be used for temporary application with full load capacity, or for permanent application with reduced load capacity (due to crack width limitation). Corrosion protection is achieved by grout cover thickness and crack width limit.

Double Corrosion Protection (DCP)

For permanent applications where design working life is more than 2 years or sufficient protection is not possible by SCP system due to aggressive soil conditions, a Double Corrosion Protection (DCP) shall be used. By using a DCP system, micropiles can be used for permanent application (more than 100 years) irrespective of corrosiveness of environment and direction of load. Threaded solid bar placed inside a HDPE or PVC corrugated sheathing which is factory grouted serves as the reinforcement bar (tendon).