Case stories

The Case stories will show you some successful use of Conjet Robots to remove bad concrete.

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The proven and long established repair technique, known as hydrodemolition, has been extensively used throughout North America, Europe, Russia, the Middle East and South East Asia over the past 19 years.

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Conjet cleans up on major Zürich bridge
Specialist Swiss hydrodemolition contractor Wan-Jet AG responded to local environmental pressure and developed an acoustic shroud, which has considerably reduced the noise level of its Conjet Robots. The exceptionally quiet Robot 363 allowed an increased daily working time by 2 hours.

Conjet Robot boosts up power plant capacity
A Swedish Conjet Robot 361 hydrodemolition machine has played a major role in boosting the electricity generating capacity of three hydro-electric power plants on the Drava River in the Republic of Slovenia. Contractor Gradis is using its Conjet Robot for removing concrete from nine vertical turbine draft tubes. This operation will make way for new reshaped steel linings and larger diameter, more efficient, greater capacity turbine generator sets.

Conjet Robot 361 assists in repair to major viaduct
The versatility of a Conjet Robot hydrodemolition machine has been successfully demonstrated during the SFr7M repair and strengthening of the major Ponti Del Valico dual two lane concrete viaduct, which straddles the Swiss Italian border at Chiasso, 50km north of Milan.

Conjet Robot preforms laser surgery on UK rail overbridge
Specialist hydrodemolition contractor Laser Civil Engineering successfully used its Swedish Conjet Robot 362 high-pressure water-jetting machine to to carryout vital concrete surgery during essential repairs to the northbound A404M bridge deck, which carries the major trunk road over the Western Region Railway line at Maidenhead in England.

Conjet Robot assists in bridge strengthening
One of the Swedish contractor E-Schakt´s Conjet hydrodemolition Robots has assisted in the strengthening and reconstruction of the deck parapets of a single carriageway bridge, which carries the "Spånga Kyrkväg" road over a path and cycleway at Tensta, about 15km north west of Stockholm.

Midskog hydropower station. Repair of a concrete dam built in the 40´s
The Midskog hydropower station is part of the river Indal´s water regulation system in Northern Sweden. The dam was bulit during the 1940´s and is a combined earth fill and concrete dam.

Excellent results when using hydrodemolition for removal of deteriorated conrete in repair of first Los Angeles aqueduct tunnel
A unique adaption of concrete removal hydrodemolition equipment has facilitated efforts of the City of Los Angeles to meet a major challange in the repair of l44 miles of tunneling and conduits bringing water from the Sierra Nevada mountains to the greater metropolitan area.

Hydrodemolition on Wabash bridge resurface job speeds work, reduces cost
A US $ 1.67 million bridge rehabilitation project in Indiana was utilizing hydrodemolition technology instead of jackhammers for concrete removal and finished up in record time and saved the Indiana Dept. of Highways an estimated US $ 500.000 in direct costs.

Conjet´s diesel Robot performs surgery on bridges in New York state, USA
Specialist US hydrodemolition contractor IVS Hydro Inc has successfully used the first diesel powered Conjet Robot 432 D highpressure water-jetting machine in the US to carry out vital concrete surgery during essential repairs to two sets of dual carriageway bridges on Route 15 near the town of Painted Post, New York State.

Conjet Robot 362 assists in Lisnave dry dock repair
The Portuguese contractor Belbetoés, a subsidiary of Portugal´s leading civil engineering contractor Teixeira Duarte SA, has chosen one of the latest Swedish Conjet Robot 362 hydrodemolition robots to assist with extensive and major concrete repairs to Lisnave´s vast Mitrena reinforced concrete dry dock, near Setubal, about 50 km south east of the Portuguese capital Lisbon.

Conjet Robot assists in emergency tunnel repairs
A Swedish Conjet Robot 362 hydrodemolition machine has played a vital role in successfully assisting in the unexpected emergency repairs to the damaged concrete cooling water outfall tunnel at the Bridgeport Harbour coal fired power station in Bridgeport, Connecticut, USA
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Conjet Robot restores the Skanstull Bridge in Stockholm
A Conjet Robot high pressure water jetting hydrodemolition machine was playing a key role in the SEK 22 M repair and strengthening to the deck if major Skanstull Bridge in Stockholm, Sweden.

Conjet Robot proves versatility on hydrodemolition contract
The versatility of a Conjet Robot hydrodemolition machine has been successfully demonstrated during the 7 million Swiss Franc repair and strengthening of the major Ponti Del Valico. The dual two lane concrete viaduct, straddles the Swiss Italian boarder at Chiasso, 50km north of Milan.

Conjet Robot restores flyover at Staples Corner, U.K.
The first Robot 360 hydrodemolition machine in the UK proved a major success on its debut contract assisting in repairing North London´s A5 Edgware Road flyover, which was severely damaged by a terrorist bomb in April 1992.

Conjet repairs frost damaged water channel
Specialist German hydrodemolition contractor Krüger Wasserhochdrucktechnik, using its Conjet Robot 360 high pressure waterjetting machine, has successfully assisted in the very unusual and tricky repair to, new cooling water feed channel at the country´s Boxberg coal fired station.

Carpark restored by a Conjet hydrodemolition robot
The Swedish hydrodemolition contractor NCC Waterjet, with its fleet of seven Conjet Robot high pressure water jetting machines, was employed by the telecommunications company Ericsson to carry out SEK 7M of repairs to one of its reinforced concrete carparks, outside of Stockholm.

Impressive debut for Conjet tunnel repair robot
Conjet´s smallest and most compact hydrodemolitionmachine Robot 302, developed for use in small tunnels, bridge deck boxes and other similar confined spaces, has exceeded expectations on its debut contract removing concrete lining from a water supply tunnel feeding the Centrale Grossotto hydro-electric power station in northern Italy.

Repairing and modifying hydroelectric power station in Sweden
Landforsen rapids are part of the Dalälven (River Dal) water system close to Älvkarleby, a small community near the Baltic Sea. The power station was completed in 1930 and developed originally 30 MW at max power its 3 identical Kaplan turbines. In 1948 a fourth turbine was installed and the max power output from the station was increased to 38 MW.

 

 
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