WADIT® is a globally proven sheet piling interlock sealant that can be used with all types of hot rolled and cold formed sheet piling interlocks in every environment (tropical to arctic) possible and particularly in marine conditions.
If your sheet piling project involves cofferdams, dewatering, cutoff walls for site remediation, or any application where water leakage through the wall presents a problem, WADIT® is the solution.
Tests have demonstrated that leakage through sheet pile walls is reduced up to 95% when interlock sealants are used; and sealed joint sheet pile cutoff walls are anywhere from 100 to 10,000 times more effective as groundwater flow barriers (sealed walls typically exhibit hydraulic conductivity in the 10-7 to 10-10 cm/sec range) than unsealed interlock walls.
WADIT® is the smart choice sealant from a cost, safety and convenience standpoint.
Most common WADIT® applications include:
WADIT® has been tested to withstand 5 bars (~70 psi) of differential water pressure. This means it will remain in place and functional with even a 160’ head of water pressure against it.
Conventional materials become as hard as glass in temperatures of just 50°F. WADIT®, on the other hand, remains extremely flexible even in ground water (normally 41°F to 45°F throughout the year). This means that no sealant can break out of the interlock when the sheet pile walls are inserted, thus resulting in leaks.
WADIT® is non-toxic and is made from sustainable natural raw materials. WADIT® sealant can be used without any restrictions in sheet pile wall interlocks in ground and surface water areas … no fear of harmful effects if it is used in the area of drinking water extraction systems" (quote from the German equivalent of the Environmental Protection Agency (EPA)).
Once WADIT® is in the interlock, it doesn’t matter if it rains or snows: the performance of WADIT® will not be affected by weather. WADIT® can be transported and stored without restrictions. Furthermore, you can drive the piling as soon as 15 minutes after installing; or, let it sit in your yard or at the job site for months before driving.
WADIT® creates a secure bond even in extreme conditions, such as: strong water, ice or earth pressure, movements of the sheet pile wall, or displacement of the piles during transport, etc., in the interlock chamber. Even in daytime temperatures of 120°F, the material will remain stable in the interlock.
The mill or distributor where you buy your sheet piling can also deliver the sheet piling with WADIT® already installed. This may not be available with all types of sheet piling in all areas. (Please call PilePro® at 866-666-7453 / 512-243-1228 to find an authorized WADIT® installer in your area and/or to receive a quote for PilePro® to carry out the WADIT® installation).
This unique effect of WADIT®, even in low temperatures such as that in ground water, guarantees an excellent seal even in the event of torsion and other movement in the sheet pile wall interlock.
The partial reconstruction of the Munich (Germany) to Verona (Italy) railway connection with the “Brenner” basic tunnel makes it necessary to cut under the “Inn” valley motorway A 13 and the trainline “Kufstein”.
In the ramp areas, each about 1 km long, the tunnel is built in open excavations. The up to 15m deep excavations are designed with steel sheet piling with a single anchored combiwall system, comprising HZ- double beams and intermediate double AZ-sheets.
The maximum length is 23 m and the resulting maximum beam weight is 15 metric tons.
The combiwall system with HZ double beams (HZ-775-24 and HZ-975-24) and AZ steel sheet piles (AZ 12 to AZ 50) is vibratory driven with rig carriers Liebherr LRB 255 and vibrator 40 VML, Liebherr LRB 155 and vibrator 23 VML as well as ABI SR 35 TM 14/17 with vibrator MRZV 925 V. In order to reduce noise and vibration emissions, a high frequency vibration method with stepless adjustable amplitudes was used.
For achieving the requested permeability restriction requirements the steel sheet pile interlocks have been filled with WADIT sealant.
The first project segment, with about 22,000 m2 steel sheet piling, which is roughly 1/3 of the whole, has been driven successfully despite the special challenges presented by handling and driving the double beams.
WADIT® was installed in PZC-18 steel sheet piling before pairing at a steel mill site in Petersburg, VA and then shipped out west by rail to Utah where the sheets were then installed to make a circular cofferdam in a riverbed. The cofferdam needed to be watertight due to stringent project requirements and it was determined that WADIT® was the best steel sheet piling sealant on the market for the job.
| SITE LOCATION | HOLLYHILLS WEST HOLLYWOOD, CA |
| EMPLOYER | LOS ANGELES COUNTY DEPARTMENT OF PUBLIC WORKS |
| CONTRACTOR | MIKE BUBALO CONSTRUCTION CO.,INC |
| PRESS-IN PILING | GIKEN AMERICA CORPORATION |
| PRESS-IN MACHINE | SUPER CRUSH U PILER SCU-600M |
| PROJECT PURPOSE | DRAINAGE IMPROVEMENTS |
| SHEET PILE | U-LX25 L=43’ N=1,016 pcs3 |
Sheet piling interlock sealants in port construction applications. A brief case study of the Bremerhaven Container Port
