Extraction and processing of gravel and sand as well as production and delivery of ready-mixed concrete
Kieswerk Müller GmbH & Co. KG
Stolberg (Südharz) · Roßla (Südharz) · Nordhausen · Ballenstedt/OT Rieder · Andernach · KoblenzNew on Amplifa
About the Müller Group
The Müller Group is a family-run mid-sized company with around 40 to 55 employees, specialising in building materials and real estate. At the Roßla site (South Harz), Quaternary gravels and sands are extracted from the Goldene Aue. The raw gravel from the gravel lake between the Harz and Kyffhäuser mountains is washed and screened in an in-house processing plant, with oversize grain and undesirable fines sorted out. The products of the various grain size groups are stockpiled in intermediate storage and delivered with vehicles from the company's own fleet. Three ready-mixed concrete plants in Roßla, Nordhausen and Rieder (Saxony-Anhalt and Thuringia) produce ready-mixed concrete of all required concrete classes as well as steel fibre concrete and concrete for engineering structures. In addition, the company offers concrete recycling with its own crusher, acceptance of construction rubble, earthworks, civil engineering and road construction services, as well as placement by concrete pump. The company headquarters is located in the Tannengarten in Stolberg (South Harz).
- Site
- Südharz / OT Stolberg
- Processes
- Gravel extraction and processing (washing, screening), Ready-mixed concrete production, Concrete pump placement on construction site, Concrete recycling with own crusher, Pulverisation, Sorting grab work, Construction rubble acceptance, Earthworks / civil engineering
- Materials
- Gravel (quaternary, Goldene Aue), Sand, Chippings, Crushed stone, Quartz sand, Topsoil, Recycled material, Frost protection material
- Certificates
- Building material/production control
- Founded
- 1951
- Employees
- approx. 40–55
- Industries
- Road and motorway construction, Concrete construction, Civil engineering, Building construction, Engineering structures, Earthworks
- 01
Gravel extraction
- 02
Processing (washing, screening)
- 03
Intermediate storage in stockpiles
- 04
Ready-mixed concrete production
- 05
Transport with own vehicle fleet
- 06
Concrete pump placement at the placement site
Materials and Products
Gravel (quaternary, Goldene Aue)
Main raw material from the gravel lake between the Harz and Kyffhäuser mountains, in various grain size groups.
Sand
Processed sand for road and motorway construction as well as concrete and civil engineering.
Chippings
Grading for road construction and concrete-related applications.
Crushed stone
Commercial product for civil and road engineering.
Quartz sand
Commercial product for a wide range of building material applications.
Topsoil
Soil material for earthworks.
Recycled material
Material obtained from concrete recycling for road and earthworks.
Frost protection material
Fill material for civil and road engineering.
Ready-mixed concrete
All required concrete classes, delivered ready for the construction site.
Steel fibre concrete
Concrete with steel fibres for higher-stressed structures.
Construction rubble
Accepted rubble that is recycled in the company's own crusher.
Sites
Roßla
DEGravel plant (production/sales) and concrete plant
- Materials
- Gravel, sand, ready-mixed concrete
- Processing plant (washing/screening)
- Crusher (concrete recycling)
- Ready-mixed concrete plant
- Concrete pumps
Stolberg (Südharz)
DECompany headquarters Tannengarten (administration)
Nordhausen
DEConcrete plant
- Materials
- Ready-mixed concrete
- Ready-mixed concrete plant
Ballenstedt / OT Rieder
DEConcrete plant
- Materials
- Ready-mixed concrete
- Ready-mixed concrete plant
Andernach
DEReal estate (residential and office space)
Koblenz
DEReal estate (office and commercial space)
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Gravel extraction and processing (washing, screening)Other (building material processing) | – | – | – | – | Gravel, Sand |
| Ready-mixed concrete productionOther (building material production) | – | – | – | – | Ready-mixed concrete, Steel fibre concrete |
| Concrete pump placement on construction siteAssembly | – | – | – | – | Concrete |
| Concrete recycling with own crusherOther (recycling) | – | – | – | – | Concrete, Construction rubble |
| PulverisationOther (recycling) | – | – | – | – | – |
| Sorting grab workAssembly | – | – | – | – | Construction rubble |
| Construction rubble acceptanceOther (recycling) | – | – | – | – | Construction rubble |
| Earthworks / civil engineeringOther (earthworks) | – | – | – | – | – |
| Farm and forestry track constructionAssembly | – | – | – | – | Gravel, Frost protection material, Recycled material |
| Transport of bulk goods, aggregates and concreteAssembly | – | – | – | – | Gravel, Sand, Concrete |
9 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Processing plant (washing/screening) | – | 1 | – | – | Roßla |
| Crusher (concrete recycling) | – | 1 | – | – | Roßla |
| Crawler excavator | – | – | – | – | – |
| Bulldozer | – | – | – | – | – |
| Grader | – | – | – | – | – |
| Transport vehicles (fleet) | – | – | – | – | – |
| Concrete pumps | – | – | – | – | – |
| Ready-mixed concrete plant | – | 3 | – | – | Roßla, Nordhausen, Rieder |
| Sorting grab | – | – | – | – | – |
Additional services
Quality
Continuous quality controls in the production process as well as regular internal and external building material testing ensure the technical quality of gravel, sand and ready-mixed concrete. Declaration of performance according to EN 12620-2013.
| Evidence | Roßla |
|---|---|
| Building material/production control |
Company History
- 1951
Willy Müller flees to West Germany and begins building the company with a used truck.
- 1954–1957
Building materials wholesale for road, motorway and industrial construction sites in the Koblenz and Rhineland-Palatinate region.
- 1957
Construction of a gravel plant in Andernach.
- 1962
Establishment of two ready-mixed concrete plants.
- 1963
Opening of a commercial vehicle business (Magirus, today IVECO).
- 1972
Koblenz branch in the commercial vehicle sector as well as another passenger car company.
- 1987
Purchase of a factory site in Koblenz; two passenger car businesses and office buildings with approx. 9,000 m² of usable floor space.
- 1992
Acquisition of the Roßla gravel plant via the Treuhand; new processing plant; three ready-mixed concrete plants in Roßla, Nordhausen and Rieder; forwarding company.
- 1994
Acquisition of the Tannengarten in Stolberg, since then the headquarters of the group.
- 2001
Purchase of the surrounding forest, managed by the company's own forestry operation.
- 2010–2012
New construction of an apartment building with 7 apartments and 2 office units in Andernach, ready for occupancy since April 2012.