Existing Construction & Repair

Background La Cite is a residential apartment building located on Rue Sidani, about 4 or 5 city blocks from the Corniche and the Mediterranean Sea. The Engineer of this outstanding development is a trend setter in the construction world with many colleagues often following his work and duplicating it in their own projects. A waterproofing … Read More

Background Office building complex situated along the Thames River, next to the Tower of London. The underground tunnels were constructed with precast pipes and cast in place concrete using conventional waterproofing systems. Hundreds of leaks occurred through cracks and joint locations where rubber gaskets were failing. Leaking cracks reached lengths of five feet (1.5 meter), … Read More

Background The 27.7 km (17 mile) Beijing subway tunnel travels underground, from Songjiazhuang, in south Beijing, to Beitaipingzhuang in the north. The route lightens traffic on the city’s north-south axis along the third ring road. Many cracks in the finished concrete tunnels were actively leaking water and it was feared that the reinforcing steel, tracks, guide … Read More

Background The River Erne, at 90 kilometers (60 miles long), is the second largest waterway in Ireland and has been the source of major hydroelectric development since 1946. One of the two massive hydroelectric dam structures on the waterway, Cathleens Fall, needed structural repairs to the 25 meter (82 foot) deep vertical shaft that runs … Read More

Background The Sewage Pumping Station of the Municipal Corporation of Delhi is located next to a tributary of the Yamuna River in Jasola, New Delhi. It serves an important purpose as a treatment facility and pumping station. Its location along the bank of the Yamuna River entails a very high water table and the base … Read More

Background The Port of Entry Facility at the Point Roberts Border Crossing was designed with good soil drainage, visquene (poly-ethylene plastic), and an 8-inch (200 mm) concrete slab on both the 1st and 2nd floor. However, hydrostatic pressure under the slabs forced excessive amounts of moisture to push through the concrete and affect the adhesion … Read More

Background The Water Works valve chamber situated 4 meters (13 feet) below grade had constant standing water. In fact, the chamber was always filled to the top at ground level. Many attempts to waterproof the concrete chamber were attempted with no success. Waterworks, Croatia was skeptical regarding suppliers claims of waterproofing abilities. Solution In April 1998, … Read More

Background Concrete structure is 30 meters long, 7 meters wide and 6 meters deep (89, 23 and 20 feet respectively). At first the contractor opted to use a competitor’s product for the base slab. However, considerable cracking resulted. In 1997, The Crystal Group was contracted to provide Kryton’s Krystol waterproofing materials to repair the cracked slab. Construction continued … Read More

Background The Horka Dam built in 1985 had water leakage problems in the maintenance tunnels well below grade. The maintenance tunnels required waterproofing for 1550 cubic meters (55,000 cubic feet) of existing concrete. Solution Krystol T1 & T2 Waterproofing System were used on existing below grade concrete. Since the Krystol application in 1997 no leaks or wet spots … Read More

Background Initial construction of four huge DAFT tanks, several meters in height and 400 millimeters (16 inches) thick, did not utilize Kryton’s Krystol Internal Membrane (KIM) admixture. Severe cracking and leaking resulted, especially at the tapered tie holes and cracked locations. Subsequent ground settling contributed to the poor performance by creating new cracks. Some voids were … Read More