Building materials and civil engineering services from own extraction: bulk materials, asphalt, concrete, precast concrete, recycling and container service.
Gebr. Kaltenbach GmbH & Co. KG
Dornstetten · Sulz-Fischingen · Sulz-Dürrenmettstetten · Muggensturm · Rastatt-Ottersdorf · EbhausenNew on Amplifa
About Gebr. Kaltenbach
Gebr. Kaltenbach GmbH & Co. KG is a family-run construction company based in Dornstetten (Baden-Württemberg) that has been active in the quarry and building materials industry since 1923. The company extracts and processes mineral raw materials from its own quarries, crushed stone and gravel works into bulk materials such as crushed stone, chippings, gravel, sand, shell limestone, granite, Jura and basalt. Its own concrete and precast concrete plants in Dornstetten and Ebhausen produce ready-mixed concrete as well as CAD-designed precast concrete elements such as walls, ceilings, staircases, retaining walls and block elements – as one-off productions or series. Bituminous asphalt is produced in Fischingen (CE-certified since 2009). The service portfolio also includes civil engineering and demolition work, road and forest track construction, landscaping, container service, excavation disposal and building material recycling at a crushing and screening plant in Dornstetten. Customers include building owners, property developers, industrial companies and public institutions, primarily in the districts of Freudenstadt, Rottweil, Tübingen, Pforzheim, Calw and Rastatt.
- Site
- Dornstetten
- Processes
- Production of precast concrete elements (concrete slabs, filigree slabs, element slabs, concrete, Production of ready-mixed concrete, Asphalt production and delivery (asphalt mixing plant, asphalt paving, road construction), Building material recycling (crushing and screening plant, processing of mineral building materials, Extraction and processing of bulk materials (crushed stone, chippings, gravel, sand, crushed sand,, Civil engineering/earthworks (excavation pits, foundation excavation, area backfills, levelling,, Demolition and deconstruction work (building demolition), Landscaping, track construction, forest track construction, retaining walls, natural stone walls,
- Materials
- Shell limestone, Granite, Granite grey, Granite red, Jura, Basalt, Gravel, Sand/natural sand
- Certificates
- CE certification asphalt, Factory production control (WPK) and concrete testing station, CE certification asphalt (2009), External monitoring by the Institut für Baustoffe Qualitätssicherung, QRB membership (recycled building materials BW)
- Founded
- 1923
- Industries
- Construction industry, Structural engineering, Civil engineering, Road and track construction, Landscaping, Disposal/recycling
- 01
Raw material extraction in quarries and gravel works
- 02
Processing (crushing, screening, mixing)
- 03
Production of asphalt, concrete and precast concrete elements
- 04
CAD planning and logistics
- 05
Just-in-time delivery with own truck fleet
- 06
Take-back and building material recycling
- 07
Renaturalisation of extraction sites
Building materials and raw materials
Shell limestone
Crushed limestone for crushed stone, chippings and crushed sands in civil, road and track construction.
Granite (grey/red)
Hard rock for decorative stones, gabion stones and high-quality bulk materials.
Jura
Natural stone for decorative purposes and gabions.
Basalt
Hard rock for decorative chippings and durable building materials.
Gravel and natural sand
Natural raw materials from the gravel works in Muggensturm and Ottersdorf.
Moraine
Natural raw material for building material mixes and backfills.
Concrete / ready-mixed concrete
Own production with tested compressive strength, delivered in the region.
Reinforced concrete precast elements
Precast concrete elements with steel reinforcement in CAD-assisted dimensional quality.
Asphalt (bitumen)
Bituminous mix from the Fischingen asphalt plant, CE-certified.
Recycled building materials
Processed concrete, asphalt and construction rubble as a cost-effective alternative.
Locations and plants
Dornstetten
DEHead office, crushed stone plant, concrete plant, precast concrete plant, crushing and screening plant, container
- Lot size
- One-off production to series parts
- Materials
- Shell limestone, granite, Jura, basalt, concrete, recycled building materials
- Crushing and screening plant
- Mobile crushing and screening plant
- Concrete mixing plant
- Precast concrete plant
- Testing laboratory
- Skip and roll-off tipper containers
Sulz-Fischingen
DECrushed stone plant and asphalt mixing plant (modernised in 2015)
- Materials
- Crushed limestone, asphalt, bitumen
- Asphalt mixing plant
Sulz-Dürrenmettstetten
DECrushed stone plant (Lupold GmbH & Co KG)
- Materials
- Crushed limestone
Muggensturm
DEGravel works
- Materials
- Gravel, natural sand
Rastatt-Ottersdorf
DEGravel works
- Materials
- Gravel, natural sand, chippings
Ebhausen
DEPrecast concrete plant (RAU-Betonfertigteile GmbH & Co. KG, taken over in 2019/2020)
- Materials
- Concrete, design concrete, special parts
- Precast concrete plant
Building materials and precast elements
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Production of precast concrete elements (concrete slabs, filigree slabs, element slabs, concreteCasting | – | – | – | One-off production – Series parts | Concrete, Reinforced concrete |
| Production of ready-mixed concreteCasting | – | – | – | – | Concrete, Cement, Aggregates |
| Asphalt production and delivery (asphalt mixing plant, asphalt paving, road construction)Other | – | – | – | – | Bitumen, Aggregates, Asphalt |
| Building material recycling (crushing and screening plant, processing of mineral building materialsOther | – | – | – | – | Concrete, Asphalt, Bricks, Ceramics, Masonry, Construction rubble |
| Extraction and processing of bulk materials (crushed stone, chippings, gravel, sand, crushed sand,Other | – | – | – | – | Shell limestone, Granite, Jura, Basalt, Gravel, Sand, Moraine, Limestone |
| Civil engineering/earthworks (excavation pits, foundation excavation, area backfills, levelling,Other | – | – | – | – | Soil, Rock, Construction rubble |
| Demolition and deconstruction work (building demolition)Other | – | – | – | – | Concrete, Construction rubble, Asphalt |
| Landscaping, track construction, forest track construction, retaining walls, natural stone walls,Assembly | – | – | – | – | Bulk materials, Natural stone, Crushed stone |
| Container service (skip and roll-off tipper containers 7 m³, 10 m³, 40 m³)Other | – | – | – | – | Soil, Construction rubble, Mixed waste |
| Excavation/construction rubble disposal and acceptanceOther | – | – | – | – | Excavated soil, Construction rubble, Asphalt demolition, Concrete, Bricks, Tiles, Ceramics, Construction site mixed waste |
| Concrete testing and quality assurance (factory production control WPK, concrete testing station,Testing | – | – | – | – | Concrete, Aggregate, Asphalt, Special concretes, Recyclable building materials |
| GPS- and tachymeter-controlled construction site surveying, terrain profile plans, compactionEngineering | – | – | – | – | – |
| CAD planning of precast concrete elements (own planning office, CAD models, production-readyEngineering | – | – | – | – | Concrete |
12 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Crushing and screening plant (building material recycling) | – | – | – | – | Dornstetten |
| Mobile crushing and screening plant | – | – | – | – | Dornstetten |
| Asphalt mixing plant | – | – | – | 2015 (mode | Fischingen |
| Concrete plant/concrete mixing plant | – | – | – | – | Dornstetten |
| Precast concrete plant | – | – | – | 1993 (Bau | Dornstetten and Ebhausen (RAU-Betonfertigteile) |
| Crushed stone plant | – | 3 | – | – | Dornstetten, Fischingen, Dürrenmettstetten (Lupold) |
| Gravel works | – | 2 | – | – | Muggensturm, Ottersdorf |
| Excavators (mini excavators to large tracked excavators, with GPS and tachymeter control) | – | – | – | – | – |
| Truck fleet (vans to semi-trailers) | – | – | – | – | – |
| Skip and roll-off tipper containers (container exchange systems) | – | – | – | – | Dornstetten |
| Testing laboratory (in-house concrete testing station) | – | – | – | 1973 (Inbe | Dornstetten |
| Quarry | – | 5 | – | – | Dornstetten, Egenhausen, Alpirsbach-Rötenberg, Talheim, others |
Additional services
Reference customers
Quality
An in-house testing laboratory (since 1973) tests all requirements for aggregates, asphalt and concrete as part of the factory production control (WPK). Asphalt production has been CE-certified since 2009 and is externally monitored by the Institut für Baustoff Qualitätssicherung.
| Evidence | Dornstetten | Sulz-Fischingen |
|---|---|---|
| Factory production control (WPK) and concrete testing station | ||
| CE certification asphalt (2009) | ||
| External monitoring by the Institut für Baustoffe Qualitätssicherung | ||
| QRB membership (recycled building materials BW) |
History
- 1912
Commissioning of the Dornstetten quarry by Gottlieb Kaltenbach
- 1923
Taken over by the brothers Otto, Wilhelm and Gottlieb Kaltenbach
- 1954
Commissioning of the sand and gravel works in Muggensturm
- 1956
Commissioning of the crushed stone plant in Fischingen
- 1963
Commissioning of the asphalt mixing plant in Fischingen
- 1966
Construction of the ready-mixed concrete plant in Dornstetten
- 1970
Death of Otto Kaltenbach; management taken over by Walter Kaltenbach
- 1973
Commissioning of the in-house testing laboratory
- 1993
Construction of the precast concrete plant in Dornstetten
- 2008
Membership of the QRB (quality assurance system for recycled building materials Baden-Württemberg e.V.)
- 2009
CE certification of asphalt
- 2013
Introduction of container service
- 2015
Modernisation of the Fischingen asphalt plant
- 2019
Permit for the Talheim quarry; takeover of the Rau precast concrete plant in Ebhausen
- 2020
Takeover of the Rau precast concrete plant in Ebhausen
- 2023
100 years of Kaltenbach