Group - History
2012
The Harbor Drive Pedestrian Bridge, San Diego, CA, USA
March 2012
DSI supplied DYWIDAG-Post-Tensioning Systems for one of the world’s longest Self-Anchored Pedestrian Suspension Bridges
This project won the Engineering News Record (ENR) “Best of the Best” award.
June 2012
DSI acquires the rights of the JFP 95 Dust Suppressant for Reducing Dust Concentration in Mining
The JFP 95 Blue Anti-Static Dust Suppressant marks DSI’s continuing expansion into chemical products for the Underground industry. DSI plans to use the existing distribution network that was established by WB Mining along with its own global sales network to market and sell the JFP product line worldwide.
February 2012
DSI acquires a majority stake in UK specialist mining contractor Drill Tek Injection Systems Ltd.
Drill Tek is a mining services contractor offering both contracting services such as roof bolt installation and resin injection as well as product supply for roof support and reinforcement in underground mines. Additionally, the UK based company provides specialist services for tunneling and civil infrastructure construction. The acquisition represents a strategic investment for the future of DSI’s business and is the first acquisition undertaken since Triton Partners acquired DSI in June 2011.
2011
2011, DSI South Africa strengthens Export Activities in Botswana and Zimbabwe
DSI is one of the largest and leading producers of products and systems for mining in South Africa. DSI plans to strategically expand its export activities into the important neighboring countries such as Botswana and Zimbabwe. Clients include BHB Billiton, Xstrata, Exxaro, De Beers, Anglo American Thermal Coal, Anglo American Platinum, Bombela Construction, Sasol, CMI Joint Venture and a large number of small and medium sized mining operations
June 2011
The acquisition of DYWIDAG-Systems International (DSI) by Triton is closed on June, 15th, 2011. Triton, a highly respected European private equity house, is now the owner of DSI
2010
2010
Significant investments in EMEA's production capabilities in Austria for Geotechnics, Tunneling & Mining
March 2010
DSI acquires the remaining 38% of shares of PROTENDIDOS DYWIDAG Ltda., Brazil
2009
2009
Extension of DSI's market presence in South America by acquisitions
December 2009
DSI acquires the remainder of the shares of DYWIDAG Sistemas Constructivos (DSC) in Spain. DSC is now a wholly-owned subsidiary of the DSI Group
February 2009
DYWIDAG-Systems International (DSI) acquires business from AGRHIMERC S.A.C., Peru and establishes DSI Peru S.A.C.
2008
2008, DSI supplies special products for Australia's longest road tunnel in Brisbane, Australia
For the construction of the 5,000m long double tunnel, DSI supplies the AT-76 injection system used for the first time in Australia in addition to many other products and systems. The injection system protects the TBM in advance from water damage and ensuing failure
December 2008
DSI acquires Fosminas Ancoragens Ltda., a leading producer of mining products in Brazil
January 2008
The acquisition of MET-TECH Industries Ltd., USA extends DSI's market leadership in the supply of mining products in North America
2007
2007, Customized Products for Wastewater Treatment Plant, Marseille, France
Technique Béton, a 100% subsidiary of DSI, produces and supplies its special repair mortar Ravalchoc, mould release agents and other Concrete Accessories to one of the largest sewage plants in France
September 2007
DSI acquires Idéaplast in France. Idéaplast produces accessories for the construction, aviation and automotive industries
July 2007
DSI is sold by Industri Kapital to CVC Capital Partners. CVC Capital Partners is a leading international private equity company with a total of 11.6 billion Euros in equity capital
June 2007
DSI acquires all outstanding shares of the Italian company DYWIT SPA, Milan, Italy
January 2007
DSI expands its mining activities in South America by acquiring Soprofint SA, headquartered in Santiago, Chile
2006
December 2006
DSI USA acquires Fasloc, Inc., a premier producer of Resin Cartridges for mining and tunneling in the USA
October 2006
DSI further strengthens its tunneling and mining activities in North America by acquiring the shares of American Commercial Incorporated (ACI), Bristol, VA, USA
2006, DYWIDAG Multistrand Anchors tie down Gilboa Dam, NY, USA
For strenghtening Gilboa Dam, DSI produces and supplies 83 DYWIDAG Multistrand Anchors in lengths of 50-70m. The stressing operation is carried out using a 15,000kN stressing jack that was specially developed by DSI
Woodrow Wilson Bridge, Washington D.C., USA
The bridge consists of two parallel, 1,850m long bridges in each direction. Each bridge accommodates 6 lanes of traffic plus shoulders. DSI supplies the post-tensioning material and related equipment in compliance with the strict quality requirements for three independent contracts
September 2006
DSI strengthens its tunneling division by acquiring ALWAG Tunnelausbau Ges.m.b.H. in Pasching, Austria
March 2006
DSI acquires the leading supplier of mining products Mexicana de Anclas Mineras in Zapopan, Jalisco, Mexico
2005
2005 - Golden Gate Bridge, CA, USA
Retrofit using DYWIDAG Geotechnical & Post Tensioning systems. Supply, installation, stressing and grouting of DYWIDAG Post-Tensioning Tendons.
2005
DSI acquires Underground companies in North America
September 2005
DSI acquires Artéon SA in France. This step strengthens DSI's market position in France and its market leadership for geotechnical and form tie systems in Europe
July 2005
The European private equity firm Industry Kapital acquires DSI
February 2005
DSI acquires Stewart Mining in Canada. This acquisition establishes DSI as the market leader for mining products in Canada
2004
2004, "Snøhvit" project, Melkøya, Norway
"Snøhvit" is the "northernmost industrial plant in the world". DSI supplies 1,650t of cryogenic DYWIDAG Multistrand Tendons for the construction of four LNG (Liquefied Natural Gas) Tanks
2004
DSI strengthens its mining business by acquiring Celtite Pty Ltd (Celtite), Australia
2003
2003
DSI's global network consists of more than 75 subsidiaries, licensees and agents
2002
2002, Stay Cable Bridge over the Paraná River, Argentina
Production, supply and installation of 128 DYNA® Grip Stay Cables with a total weight of 740t
2002
DSI opens new facility for mining products in Salt Lake City / USA and in Johannesburg / South Africa
2002
Integration of SUSPA GmbH activities into the German business of the DSI Group. Merger creates SUSPA-DSI GmbH
2000
2000, DSI tunneling products secure various tunnels for ICE high speed railway, Germany
2000
DSI acquires ANI Strata Products and establishes a new business in the underground mining industry as well as in Australia
1999
1999, DSI network
More than 50 subsidiaries, licensees and agents
1998
1998, Merger of all German subsidiaries
Plus Austrian and French affiliates into a single DSI GmbH with European branches
1997
1997, GEWI® Piles secure Berlin's largest underground project against uplift - Lehrter Bahnhof, Germany
6,500 GEWI® Piles, 63.5mm Ø, were driven 17.5m to 26.4m deep into the ground from floating platforms to counteract hydraulic uplift
1997, Offshore oil platform Hibernia, Newfoundland, Canada
Production, supply and installation of 7,000t DYWIDAG Strand Tendons for the oil platform, height 111m
1995
1995-1997, Extension of DSI's global network.
New DSI companies in Portugal and Indonesia. New DSI representatives in Lebanon, Czech Republic, Latin America, Croatia, Bosnia, Herzegovina and Malaysia
1994
1994
DSI committed to total quality;
DIN EN ISO 9001 since 1994
1988
1988, Olympic Bridge, Seoul, Korea
Development, production, supply and installation of DYWIDAG Stay Cable Systems
1983
1983-1992, Foundation of DSI companies and agencies
DSI companies founded in the Netherlands, South Africa, UK, Korea, Taiwan, Thailand, Venezuela and France. DSI agencies founded in Turkey, Iran, Saudi Arabia, United Arab Emirates, Qatar and Oman
1979
1979, Founding of additional DSI companies in Belgium, Hong Kong, Egypt and Brazil.
DYWIDAG establishes the DSI Company Group as an independent organization in order to take over the work of the Licensee Department and continue the successful worldwide marketing of DYWIDAG systems and technical know-how
1975
1975, Construction of the CN Tower, Toronto, Canada
550m high television tower, platform with restaurant, upper tower shaft made of prestressed DYWIDAG concrete
1972
1972, BMW office building in Munich, Germany
100m high cylinders that are suspended on a support tower with a useable surface of 72.000m2. Construction of the stories on the ground and subsequent lifting into their final position using the DYWIDAG Bar Post-Tensioning System
1972, Pine Valley Bridge
First US Application of Segmental Form Traveler Construction in San Diego, California, USA
1972, Merger of Dyckerhoff & Widmann AG with Siemens Bauunion
Intensified activities as a general contractor in turnkey construction, structural design, industrial construction, and underground projects as well as production of precast segments.
1971
1971-1973, Knight Street Bridge
First Canadian Application of Segmental Form Traveler Construction in Vancouver, Canada
1970
1970-1972, First important application of DYWIDAG Bar Stay Cables
Second Main Bridge (135 + 135m spans), Frankfurt, Germany. First significant application of DYWIDAG rock anchors with double corrosion protection in Waldeck II cavern near Kassel, Germany.
First tests are carried out on GEWI® Piles for subsequent distribution. Development of the DYWIDAG Strand Post-Tensioning System
1970, Water tower Riyadh, Saudi Arabia
Main reservoir: 12.000m3; hydraulic lifting by 44m into the final position
1969
1969-1970, Creation of a Research & Development Department within DYWIDAG
Systematic development of additional DYWIDAG systems such as bar, ground and rock anchors using 16mm Ø threabars and stay cable systems.
DYWIDAG subsidiaries are founded in Austria, USA, Canada and Italy.
Creation of an international network of companies for the global distribution of DYWIDAG systems and know-how
1967
1967, Marketing of the DYWIDAG Post-Tensioning System
The decision is made to market the DYWIDAG Post-Tensioning System outside the group. The License Department is founded within DYWIDAG
1965
Until 1965
DYWIDAG's Post-Tensioning System is exclusively used for DYWIDAG's own projects or partner projects
1964
1964, Bendorf Bridge
A new world record in prestressed concrete, Germany, Length: 524,70m
1958
1958, Sumitomo Electric Industries, Ltd.
Sumitomo obtains a license for manufacturing and distributing DYWIDAG's Post-Tensioning System and for applying DYWIDAG's Free Cantilever Construction Method in Japan and the Far East
1955
1955-1957 Bridge Construction Projects
Several post-tensioned prestressed concrete bridges are built in Austria, Sweden, Denmark, Finland, Norway and the Netherlands
1953
1953, First prestressed concrete bridge over the Rhine river:
Nibelungen Bridge, maximum span: 114m, Worms, Germany
1950
1950-1955, Rapid growth of DYWIDAG's international activities
Thanks to the growing worldwide recognition of DYWIDAG systems and construction projects
1950
DYWIDAG begins licensee business.
1938
1938, technical achievements of Dyckerhoff & Widmann AG
Longstreth Medal in Philadelphia, USA for the world’s greatest technical achievement
1927
1927, Construction of Saale bridge Alsleben
Special feature: prestressed iron tie by Dipl. Ing. Franz Dischinger, a predecessor of today’s prestressing technique
1925
1925-1927, Construction of planetaria,
Zeiss-DYWIDAG system, in Mannheim, Nuremberg, Dresden, and Berlin, Germany
1923
1923, Dipl. Ing. Ulrich Finsterwalder
joins Dyckerhoff & Widmann AG
1913
1913, Dipl. Ing. Franz Dischinger
joins Dyckerhoff & Widmann AG
1904
1904, Railway Bridges near Kempten, Germany
Rammed concrete, longest span: 64,5m (212ft.)
1902
1902, First international activities.
1882
1882, Water Reservoir, Wiesbaden, Germany
Rammed concrete, capacity: 4.300m3 (5,600 cu. Yds.)
1869
1869, Gottlieb Widmann (left) & Eugen Dyckerhoff (right)
Change of name to Dyckerhoff & Widmann AG
1865
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