Domestic Xypex Projects

Amata Industrial Park – Tower Tank

Bien Hoa, Dong Nai Xypex was selected by Bechtel to waterproof a tower tank 27 m above the ground. Defective concrete was chipped out and repaired with Xypex Concentrate followed by the application of a 2:1 cement mortar patching compound. Xypex Concentrate and Modified were then applied over the repaired concrete.

Amata Industrial Park – Water Supply Plant

Bien Hoa, Dong Nai Xypex provided both the material and technical guidance to repair and waterproof the subterranean construction joints of these two 2,500 m² water tanks where high hydrostatic pressure was causing leakage. Approximately 160 linear meters of construction joints were repaired and waterproofed.

Bluescope Steel Factory

Phu My Xypex products were chosen to waterproof the basement pits and water tanks due to its capability to be applied during rainy conditions and can be backfilled after 36 hours of moist curing.

Daisin Vietnam Factory

Bien Hoa, Dong Nai Xypex was selected to waterproof the waste and water treatment plants, grease traps, and waste pits by Obayashi Corporation, the main contractor. After repairing defective concrete, over 2,000 tie holes were sealed using Xypex Concentrate with a 2:1 cement mortar dosed with Admix C-2000 per weight of cement. Afterward, a two-coat system of Xypex Concentrate was applied to all tanks. Due to the contractor’s experience with Xypex in previous projects, construction joints were sealed with Xypex Concentrate Dry-Pac only, without installation of any waterstops. Total quantity treated was approximately 1,120 m² and 514 m of construction joints, completed in August, 2000. 

Dau Tieng Dam

Tay Ninh After a successful trial in 1997, Xypex was specified and used to waterproof 400 m² of the upstream discharge chamber of this dam. Xypex also supplied on-site technical support.

Diamond Plaza – International Business Center

Ho Chi Minh City Xypex products were used to repair and waterproof a wide variety of places within this 22-storey building, including: screen wall coves along diaphragm walls, septic tank, 3 water tanks, 2 elevator pits, one electrical vault, machine room slab, bathrooms and laundry rooms.

During the construction of this mix use development, continuous pumping of ground water was terminated near the completion of the basement. The bentonite waterstop used at the foundation slab immediately failed under extreme hydrostatic pressure, and the basement was continuously flooded to knee height within every 15 minutes if pumping was stopped. Sixteen strategic pits over the finish slab were cut open to allow Xypex’s repair to the double slab to control the water flow between the double slabs. Concrete blocks pre-coated with Xypex Concentrate were set in place against continuous water flow using Xypex Patch’n Plug to contain the flow of water. The pits were then filled with new pours of mass concrete which was then coated with Xypex Concentrate, cutting off the water permanently. The repair was completed in the early part of 1998.

Fujitsu Computer Factory – Phase 1 & 2

Bien Hoa, Dong Nai Repaired the roof of an utility building in Phase 1 and waterproof the roof of the canteen building in Phase 2. Before Xypex was applied, the existing mortar topping was removed. Cracks were repaired and a two-coat system of Xypex Concentrate and Modified was then applied. A new protective mortar was then placed over the Xypex application. One coat of Concentrate was applied to the bathroom floors and other floor slabs in this factory. Total area treated for both phases was about 298 m² and completed in August and November of 1997, respectively. The main contractor is Hazama Corporation.

HCMC Metro Line 1 Package 2 Aboveground Stations Crack Repair

Ho Chi Minh City Xypex Vietnam is selected by GS Engineering & Construction to repair originally 300 linear meters of cracks at the 5 newly constructed aboveground Metro Stations. Cracks are cut to a U-shape groove and plugged with Xypex Concentrate Dry-Pac, then followed with two coats of Xypex Concentrate slurry. 

Xypex was selected after trial repair comparing against Sika materials. Hoa Binh Construction is the subcontractor to monitor the repair process for the Thao Dien, Cat Lai, Rach Chiet, Binh Thai, and Hightech Park stations. Repair commenced in November 2016 and completed at the end of January 2017 with a total quantity of over 600 linear meters repaired for the above 5 stations. Xypex will also repair the Thu Duc Stations once construction is completed.

HCMC Metro Line 1, Package 1B, Opera House Station

Le Loi St and Nguyen Hue St., District 1, HCMC Xypex is selected by Bachy Soletanche Vietnam, the diaphragm wall contractor, as the primary concrete and leak repair system for this 5 level underground station along Nguyen Hue street & Le Loi Street. As of November 2016, after witnessing the effective repair results for over 18 months, the main contractor, Shimizu Maeda JV Construction Co. is seriously considering to use Xypex coatings to waterproof all the diaphragm walls of the Opera House Station and the Ba Son Station. Project is ongoing and scheduled to complete in 2019.

Japanese Consulate – Residence

Ho Chi Minh City Repaired an old concrete roof and gutters where repeated repairs with membrane system were unsuccessful. All existing mortar and membranes were removed and a two-coat application of Xypex Concentrate and Modified was applied over the concrete roof. A protection mortar topping was then applied over the Xypex coating. Total area treated was 60 m² and completed in June, The main contractor is Hazama Corporation.

Saigon Center Phase 2-3

Le Loi Street, District 1, HCMC, Vietnam The expansion of Saigon Center, the first high rise project in Vietnam, includes an addition of a six level basement connecting to the existing three level basement. The diaphragm wall contractor, Bachy Soletanche Vietnam, selected Xypex as the sole repair system to seal all defective concrete, and also to seal all leaks from the inside face of the diaphragm walls. The main contractor of the project is Hoa Binh Construction. After witnessing the result of Xypex's effectiveness in sealing against negative hydrostatic pressure leaks and its reliability throughout the basement project, they decided to use Xypex on their new project, The Vinhomes Ba Son Golden River, also located in District 1, HCMC.

Sanyo Home Appliance Factory – Phase 1 & 2

Bien Hoa, Dong Nai After waterproofing the phase 1 office roof with a bitumenous membrane during the rainy season, the portion of the factory gutter switched to using Xypex to reduce application time. Xypex products were also used to repair and waterproof a 100 m² septic tank. Two roofs of a toilet room and an utility room were also waterproofed with a two-coat system of Xypex Concentrate and Modified without any protection mortar. Following the excellent results, the main contractor, Obayashi Corporation continued to select Xypex to waterproof the factory gutters and a small roof at the phase 2 of this factory. Total quantities treated were approximately 4,100 m². The project was completed in November 1996, and August 1997, respectively.

Showa Glove Factory

Binh Duong Xypex is again selected to waterproof and protect all water tanks, a water treatment plant, and a waste treatment plant of the factory. Total area is approximately 2,400 m² with 7,054 tie holes, and 694 meters of construction joints. All construction joints are sealed by Xypex Concentrate Dry-Pac method without use of waterstops. Work was completed in July 2004.

Sun Wah Tower

Ho Chi Minh City Another crystalline waterproofing system was specified for this 24-storey office building by the designer. After its completion of the works in the basement, the main contractor, Shimizu Corporation switched to using Xypex for the waterproofing of the 3rd floor and the roof water tanks. Since leakage from these above grade tanks will definitely cause serious damages and inconveniences to the building occupants, the contractor was determined to use only the very best product available. Upon consulting with their Japan headquarters, the decision resulted in selecting Xypex for the job. Total area treated was 198 m² and 102 linear meters of construction joints. The work was completed in July, 1997.

Tan Thuan Export Processing Plant

Nha Be Xypex materials and technical support were selected to repair the leaks caused by high water pressure on the exterior faces and construction joints of 11 tanks. Xypex was also chosen because of its resistance to aggressive chemicals.

The Metropolitan Towers

Ho Chi Minh City After the construction is near completion, various cracks occurred at the basement due to structural settlement. Xypex was contacted by Leighton Asia Ltd. to repair four newly waterproofed tanks and septic tank of this prestigious high rise office building from the exterior against water pressure in 1997, using Xypex Concentrate and Patch’n Plug. Additional repairs extended to sealing ceiling cracks, leaks in elevator pit, basement walls and slab in 1998. The application was made on the outside and covered 77 linear meters of cracks and construction joints and 40 tie holes. Xypex products were also used to seal pressure leaks at two elevator pits. The reason to select Xypex for the repair is due to the successful repair of the Vietnam Brewery’s methane tank for Theiss, which is now a division of the Leighton Group. In early 2001, Xypex FCM was selected by the building management office, East Asia Property Group to seal the leaking expansion joints of the knockout panels at the main entrance which was previously waterproofed with a bituminous material.

Thủ Dầu Một Park Swimming Pool

Ho Chi Minh City The perimeter walls of this swimming pool were seriously leaking due to a defective concrete pour. All defective concrete was removed and Xypex Patch'n Plug and Concentrate were used to repair and waterproof 80 linear meters of construction joints.

Vietcombank Tower

Ho Chi Minh City The 35-storey Vietcombank Tower is the new Vietcombank headquarters in Ho Chi Minh City. Designed by world famous architects, Pelli Clarke Pelli, this high profile building is located on the west bank of the Saigon River. The close proximity to the river means that considerable hydrostatic pressure and a very high water table are to be expected, with the problem likely to become more extreme in the rainy season. Anticipating the likelihood of serious concrete waterproofing and durability issues, the owners retained Bachy Soletanche, the French geotechnical and civil engineering contractor known worldwide for their foundation building and diaphragm wall expertise. 

Very high water tables and hydrostatic pressure have been consistent below-grade problems for most buildings in the area and Bachy Soletanch Vietnam (“Bachy”) has been the contractor hired by many to provide the necessary experience and product knowledge. In each case, Bachy chose Xypex crystalline waterproofing products over all others because of their proven capability in resisting hydrostatic pressure even under extreme conditions. 

For the Vietcombank Tower, Xypex products were applied by Bachy to repair defective concrete at all leakage points in the diaphragm wall construction joints and to seal all rebar penetration along the perimeter of the basement slab. The successful completion of these repairs in November 2012 resulted in the decision to use Xypex Concentrate to waterproof all four levels of diaphragm walls. The project is ongoing.

Vinhome Ba Son Golden River - Phase 1

02 Le Duan Street, District 1, HCMC Xypex is again selected by Bachy Soletanche Vietnam to supply and provide technical support for defective concrete repairs at the diaphragm wall's construction joints and rebar penetrations. The project commenced in April 2016 and is still on-going. Because this site is the former Ba Son Ship Yard right by the Saigon River, the main contractor, Hoa Binh Construction, decides to use Xypex to waterproof the initial 12,000 m² basement for the 6 towers of the 1st Phase. Preparation is underway to arrange for application as of September, 2016.

Yazaki Eds Wire-Harness Factory

Di An, Binh Duong Obayashi Corporation switched to Xypex for the main office roof at this factory after repeated repairs with the membrane system. In addition to waterproofing, the decision to select Xypex is the system offers additional protection to the concrete roof which has many shrinkage cracks due to thermal stress and its 43 m length. The previous waterproofing product used on the underground water tank failed due to the low pH content in the water. The membrane and a 5 cm thick concrete topping was removed to allow Xypex crack repair on the roof deck. The area was repaired with Xypex Patch'n Plug and Concentrate. The entire surface of the roof and gutter was then treated with a two-coat application of Xypex Concentrate and Modified. Total area treated was approximately 925 m², and completed in February, 2001. 

Prior to this, a septic tank, roofs of an office and an utility building were waterproofed with Xypex in July-August, 2000. A subterranean water tank was also repaired and treated with Xypex in November, 1997. Total area was approximately 1,217 m² and 345 linear meters of construction joints.