Our products have been fine tuned to benefit both contracting and administrative sides of business. Furthermore, the strength provided in combination with the ease of application make PileMedic® the obvious choice. Public and private institutions all over the world prefer PileMedic® over conventional jackets. Here is why:
PileMedic® laminates are considerably stronger than steel.
Typical mild steel has a tensile strength of 36000 psi.
PileMedic® laminates have tensile strength ranging from 60,000 to over 155,000 psi!
Because PileMedic® laminates are manufactured in our plants, little time is needed in the field to complete the repair of columns. This allows PileMedic® to be the fastest repair and strengthening system on the market. In many cases, deteriorated bridge piles can be repaired without any need for traffic control. Likewise, in industrial plants, corroded columns can be repaired quickly with little disruption to the operations of the facility.
Many of the existing jackets require steel straps or bolts to hold the jacket together. These hardware must be either constructed with stainless steel which adds to the cost or it will corrode in time, resulting in additional maintenance costs.
As shown to the right, all pile jackets currently available on the market contain either one or two rows of bolts along the height or a tongue and groove seam that must be epoxied in the field. These seams introduce planes of weakness in the jacket because not only water and oxygen can enter the jacket at these points, but the seams also prevent the jacket from applying any confining pressure on the pile and the grout.
The newly developed PileMedic® is the only product on the market that allows construction of a seamless cylindrical shell around an existing pile or column. The absence of the seal means that the jacket has a uniform high tensile strength at all points around its 360 degree circumference. As the pile and grout is loaded in the axial direction, the concrete and grout dilate and tend to expand outward. However, the presence of this high strength jacket prevents that lateral expansion and applies an opposing confining pressure to the pile and grout. As calculated above,this confining pressure results in significantly higher axial capacity for the pile.
The jackets available to date, have to be custom-made.
Long pre ordering times create scheduling problems to contractors.
The unique design of PileMedic® allows an arrive-and-repair work practice.
Thus, contractors and administrators benefit with more accurate, economical and profitable projects.
PileMedic® laminates are constructed with either carbon or glass fabrics. The laminates can be customized to include multiple layers of unidirectional or biaxial fabrics based on the project design requirements. It is generally accepted that contact between carbon and steel must be prevented as this could result in galvanic corrosion. In practice this is achieved by applying a layer of glass fabric as a barrier over the steel and carbon fabric. In construction of PileMedic® laminates a thin glass veil is included on both faces of carbon laminates. Therefore, all of our laminates can be directly applied to any pile whether made with steel or other materials.
It is possible to start the process of wrapping the PileMedic® laminate around the pile at or above waterline. Once the laminate is wrapped a couple turns, then the finished part of the jacket can be lowered into water while additional new parts are created. This process allows making long jackets in the field that extend below waterline without the need for divers to assemble the shell underwater. There may be a need for divers to seal the bottom of the annular space between the pile and the jacket. However, this can also be achieved by attaching a deflated small inner tube (similar to a bicycle tube) to the inside face of the jacket. Once the jacket reaches its final position, the tube can be inflated to create a seal at the bottom of the jacket.
With conventional jackets, the grout is placed in the annular space, leaving the cracks in concrete or the voids in the wooden pile unfilled; this will result in a continuation of the deterioration of the pile. On the other hand, the seamless jacket created by PileMedic® allows the grout or resin to be pressurized. For example,when a cracked concrete pile or a timber or wooden pile is being repaired, it is possible to fill the annular space with a low viscosity resin. This resin can be pumped under pressure, forcing it to penetrate all the cracks in concrete and the crevices in wood or timber. At the end of the repair, we will be left with a solid durable pile. For repair of wooden utility poles or timber railroad bridge piles, this procedure results in a solid pole or pile with no voids. This will not only make the pole or pile stronger than the original pole or pile, but will also prevent any bugs to cause decay of the wood or timber in the future.