THIS HEAVY-DUTY POLYETHYLENE SLEEVE HAS BEEN SPECIALLY DESIGNED TO SURROUND THE PIER AND PREVENT IT FROM BEING AFFECTED BY GROUND MOVEMENTS.

One of the major challenges a helical pile foundation must face is resisting ground movements. When the ground moves, it tends to pull or push on the shaft of the pile. Techno Metal Post designed and developed this proprietary green-coloured sleeve that reduces the grip of ground movements on the pier.
The sleeve size is adapted to that of the pile and is installed around the pier when it is screwed into the soil. Once in place, the sleeve slides up and down the pile with natural ground movements. It allows the pile to remain perfectly stable during freezing, thawing or drought periods.
As with our helical piles, Techno Metal Post has its own plastics department for the manufacturing of our exclusive sleeves in Quebec, in a variety of sizes. This gives us complete control over the quality of the product and, consequently, that of your helical pile foundations.

In keeping with the company’s philosophy, which is to offer strong and durable products, Techno Metal Post has specially developed technologies using the principle of cathodic protection to ensure that even helical piles installed in corrosive soils are protected for the long term.
Hot-dip galvanizing provides long-term protection for foundation piles.
Techno Metal Post goes one step further by offering alternatives to galvanizing.
Installing a cathodic protection system ensures the integrity of the structure for the desired time period.
Techno Protection offers two products for the protection of helical pile foundations:
Ring AnodesTMare ring-shaped magnesium sacrificial anodes installed on the shaft of the pile. They provide a one-time cathodic protection for small structures.
Ring Anodes use the intrinsic electrochemical properties of metals. Since the magnesium anode is from material inferior to steel, it consumes itself, thereby releasing an electrical current that prevents the structure from corroding.
Spin AnodesTMare impressed current anodes that are screwed into the ground like piers. Therefore, they do not require excavation and are available in a variety of sizes depending on the current needed.
Spin Anodes are made from alloys superior to steel and diffuse an electrical current produced by an external rectifier, thereby ensuring continuous protection of the buried steel structure.
Techno Protection is a sister company of Techno Metal Post. It is specialized in corrosion prevention, investigation and control.
Production Process
Production of spiral pile raw materials are: Q235 pipe. Screw pile usually after cutting, deformation, welding, pickling, galvanizing and other processes in order to produce qualified pile, which pickling, galvanizing corrosion process is important, a direct impact on the life of screw pile .
Life spiral pile will determine the level of processing pile of metal, such as the use of the pipe is trachoma, the existence of Weld, weld width pile affect the quality of future life and subsequent processing, pickling is an important preservative process foundation, while HDG time
, Thickness of the surface layer of galvanized pile affect the quality of preservative treatment. Under normal circumstances, the screw can be used to pile 20--30 years. Use of the environment and the use of processes, but also affect the life of the pile, such as the degree of acid soil, the process operation is appropriate, inappropriate
Land use, will lead to the destruction of metal pile surface, the metal protective layer is damaged, leading to accelerated corrosion of metal pile, reducing service life

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