Extraction and processing of rocks as well as production of asphalt mix and ready-mixed concrete at seven locations.
GEOMIN Erzgebirgische Kalkwerke GmbH
Venusberg · Zeithain · Grüna · Lengefeld (Pockau-Lengefeld) · HammerunterwiesenthalNew on Amplifa
About us
The raw material producers are an association of the companies ard Baustoffwerke, SH Natursteine and GEOMIN and operate a total of seven locations in Saxony and Saxony-Anhalt. The company extracts and processes rocks such as amphibolite, marble, dolomitic marble and limestone, producing chippings, grit, road construction materials, fillers and dried grain sizes from them. In addition, it produces asphalt mix for base, binder and surface courses as well as mastic asphalt in its own asphalt mixing plants, and ready-mixed concrete in two concrete plants. Around 120 employees, including ten apprentices, supply customers from large construction sites to private projects, including road construction, rail track construction, civil and structural engineering, and agriculture. In the Venusberg amphibolite quarry, a grey-black hard rock is mined; the Lengefeld lime works, whose lime extraction dates back to the 16th century, serves as a processing site for fillers and dried grain sizes. The portfolio is complemented by residual material acceptance, over-the-counter sales and delivery logistics.
- Site
- Venusberg
- Processes
- Asphalt mix production (base, binder and surface course, mastic asphalt), Ready-mixed concrete production, Rock processing (crushing, screening) of chippings, grit, road construction materials, fillers, Quarry extraction (blasting, LHD mining in room-and-pillar method), Production of fillers and dried grain sizes for the plaster and concrete block industry, Residual material acceptance, Over-the-counter sales/traded goods, Sales/logistics (delivery)
- Materials
- Amphibolite, Marble / dolomitic marble, Limestone / carbonated magnesian lime, Gravel 2/8 (concrete gravel), Natural sand, in-situ 0/2, Asphalt (base, binder, surface course, mastic asphalt), Concrete, Gravel (concrete gravel 2/8, among others)
- Certificates
- In-house inspection / WPK, Certified energy management
- Employees
- 120
- Industries
- Road construction, Civil and structural engineering, Rail track construction, Construction industry/building materials industry, Industrial goods production, Agriculture
- 01
Quarry extraction (blasting, LHD mining)
- 02
Rock processing (crushing, screening)
- 03
Asphalt mix production
- 04
Ready-mixed concrete production
- 05
Sales/logistics (delivery)
- 06
Residual material acceptance
Rocks & Products
Amphibolite
Weathering-resistant hard rock from Venusberg for chippings, grit, paving stones, ballast and hydraulic engineering stones.
Marble / dolomitic marble
Valuable raw material from the Lengefeld deposit, used e.g. for fillers, terrazzo grain sizes and carbonated magnesian lime.
Limestone / carbonated magnesian lime
Raw material of the lime works, used as fertilizer and filler, among other things for bitumen mixing plants.
Gravel (concrete gravel 2/8, among others)
Extracted natural gravel as aggregate for ready-mixed concrete and for sale to large and small customers.
Natural sand, in-situ 0/2
In-situ natural sand from over-the-counter sales for construction and earthworks.
Asphalt mix
Base, binder and surface course mixes as well as mastic asphalt from four own asphalt plants for road construction.
Ready-mixed concrete
Concrete produced in two concrete plants for construction projects of various applications.
Locations
Venusberg
DEAmphibolite quarry with asphalt mixing plant and residual material acceptance
- Lot size
- Bulk quantities, supply of large and small customers
- Materials
- Amphibolite, asphalt
- Asphalt mixing plant
- Dump trucks
- Crushing and screening plant
Zeithain
DEGravel extraction, concrete plant, asphalt mixing plant, sales (including Saturday sales)
- Materials
- Gravel, natural sand, concrete, asphalt
- Asphalt mixing plant
- Concrete plant
Grüna
DEAsphalt mixing plant
- Materials
- Asphalt
- Asphalt mixing plant
Lengefeld (Pockau-Lengefeld)
DEProcessing: fillers, dried grain sizes, terrazzo grain sizes
- Lot size
- up to 100,000 t/year (extraction until 12/2015)
- Materials
- Dolomitic marble, carbonated magnesian lime, fillers
- Fine sand plant (1994)
- Mixing station (1999)
- Automated shaft hoisting system (2001)
- Crushing plant
Hammerunterwiesenthal
DELime works for raw material extraction
- Materials
- Marble, dolomitic marble, limestone
Products & Building Materials
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Asphalt mix production (base, binder and surface course, mastic asphalt)Casting | – | – | – | – | Asphalt, Aggregate |
| Ready-mixed concrete productionCasting | – | – | – | – | Concrete, Gravel, Natural sand |
| Rock processing (crushing, screening) of chippings, grit, road construction materials, fillersForming | – | – | – | – | Amphibolite, Marble/dolomitic marble, Gravel, Natural sand |
| Quarry extraction (blasting, LHD mining in room-and-pillar method)Forming | – | – | – | – | Amphibolite, Marble, Limestone/dolomitic marble |
| Production of fillers and dried grain sizes for the plaster and concrete block industryForming | – | – | – | – | Dolomitic marble, carbonated magnesian lime |
| Residual material acceptanceOther | – | – | – | – | – |
9 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Asphalt mixing plant | – | – | – | – | Venusberg |
| Asphalt mixing plant | – | – | – | – | Grüna |
| Asphalt mixing plant | – | 4 | – | – | (4 asphalt plants group-wide) |
| Concrete plant | – | 2 | – | – | – |
| Fine sand plant | – | 1 | – | 1994 | Lengefeld |
| Mixing station | – | 1 | – | 1999 | Lengefeld |
| Shaft hoisting system (automated) | – | 1 | – | 2001 | Lengefeld |
| Crushing plant | – | – | – | – | Lengefeld |
| Dump truck | – | – | – | – | Venusberg |
Additional services
Reference customers
Quality & Certificates
Product quality is ensured through regular in-house inspections and WPK (works-owned production control). Energy management is regularly audited and certified both externally and internally.
| Evidence | Venusberg | Zeithain | Grüna | Lengefeld (Pockau-Lengefeld) | Hammerunterwiesenthal |
|---|---|---|---|---|---|
| In-house inspection / WPK | |||||
| Certified energy management |
History
- 1528
First documented mention of lime extraction in Lengefeld in a feudal charter.
- 1992
The Lengefeld lime works becomes a division of GEOMIN Erzgebirgische Kalkwerke GmbH.
- 1993
Conversion of the Lengefeld mining operation to the LHD (load-haul-dump) mining method.
- 1994
Commissioning of a new fine sand plant in Lengefeld.
- 1999
Commissioning of a new mixing station in Lengefeld.
- 2001
Automation of the shaft hoisting system in Lengefeld.
- 2015
Discontinuation of extraction work at the Lengefeld lime works for economic reasons; continued operation as a processing site.
- 2019
Delivery of over 20,000 t of asphalt for the carriageway renewal of the A4 Pleißtal bridge (18,000 t base course, 7,650 t binder course), construction by Max Bögl.