Gravel, sand, concrete and mortar from our own processing and production in Oppligen, Switzerland
Kieswerk Daepp AG
Oppligen (CH) · Ried gravel pit, Kirchdorf (CH)New on Amplifa
About Kieswerk Daepp AG
Kieswerk Daepp AG is a Swiss family company based in Oppligen in the Bernese Oberland that has been mining and processing gravel and sand in the Aare Valley since 1927. At the Oppligen site, the raw materials are washed, classified and crushed; the computer-controlled Ammann processing plant handles up to 200 t of round material or 70 t of crushed material per hour in 17 components. From the processed mineral aggregates, the company's own concrete plant produces classified and non-classified concrete grades according to SN EN 206, recycled concrete, mortar according to SN EN 998-2, and the modular concrete block SwissBlock®. As a licensee of Presyn, the company also produces special products such as masonry mortar, architectural concrete, steel fibre concrete and anhydrite flowing screed. Delivery to the construction industry is on schedule with its own vehicle fleet, including special vehicles with conveyor belts or pumps. The Ried gravel pit in Kirchdorf is operated using dry extraction and is recultivated after extraction.
- Site
- Oppligen
- Processes
- Gravel extraction (dry extraction), Gravel processing - washing and classifying, Crushing (crushed sand and chippings), Mixing of gravel components according to recipe, Concrete production (fresh concrete according to SN EN 206:2013), Recycled concrete / RC structural concrete (>25% RC content), SwissBlock modular concrete block production, Mortar production (Presyn masonry mortar according to SN EN 998-2)
- Materials
- Gravel, Sand, Round sand 0/4 mm, Crushed sand 0/4 mm, Round gravel 4/8 mm, Round gravel 8/16 mm, Round gravel 16/32 mm, Mortar sand 0/4 mm
- Certificates
- SÜGB concrete SN EN 206:2013 + A2:2021, SÜGB mortar EN 998-2 (System 2+), SÜGB aggregate for concrete EN 12620 (System 2+), SÜGB aggregate for mortar EN 13139 (System 2+), SÜGB aggregate for asphalt EN 13043 (System 2+)
- Industries
- Structural construction, Engineering construction, Road and civil engineering, Garden and landscape construction, Concrete and mortar industry
- 01
Gravel extraction (dry extraction, Ried gravel pit)
- 02
Transport of raw material by wheel loader and conveyor belt
- 03
Washing and classifying (screening machine)
- 04
Crushing into crushed sand and chippings
- 05
Mixing of grain fractions according to recipe
- 06
Concrete and mortar production in the concrete mixing plant
- 07
Transport to the construction site with own fleet
Materials and processes
Aggregate for concrete
Round and crushed sand as well as round gravel in fractions 0/4 to 16/32 mm as aggregate for concrete.
Mortar sand 0/4 mm
Classified mineral aggregate for masonry mortar according to EN 13139.
Aggregate for asphalt
Grading for asphalt and surface treatments of roads and traffic areas.
Fresh concrete
Classified and non-classified concrete grades incl. special concretes such as pervious concrete, shotcrete and steel fibre concrete.
Masonry mortar
Presyn licensed product for masonry in interior and exterior applications.
Recycled concrete / concrete granulate
RC structural concrete with over 25% RC content as an equivalent alternative to primary concrete.
SwissBlock®
Modular concrete block made from residual, recycled or fresh concrete for retaining walls and ballasting.
Anhydrite flowing screed
Presyn top-floor, bound flowing screed for interior floors.
Sites
Oppligen
CHGravel plant, processing and concrete plant
- Materials
- Gravel, sand, concrete, mortar, recycled concrete
- Ammann AS 1 gravel processing plant (17 components)
- Concrete mixing plant (2 plants)
- Crushing plant
- Screening machine
- Chamber filter press
- Cement silo systems
- Wheel loaders
Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Gravel extraction (dry extraction)Other | – | – | – | – | Gravel, Sand |
| Gravel processing - washing and classifyingOther | – | – | – | – | Gravel, Sand |
| Crushing (crushed sand and chippings)Other | – | – | – | – | Gravel |
| Mixing of gravel components according to recipeOther | – | – | – | – | Gravel, Sand |
| Concrete production (fresh concrete according to SN EN 206:2013)Other | – | – | – | – | Concrete |
| Recycled concrete / RC structural concrete (>25% RC content)Other | – | – | – | – | Recycled concrete, Concrete granulate |
| SwissBlock modular concrete block productionOther | – | – | – | – | Residual concrete, Recycled concrete, Fresh concrete |
| Mortar production (Presyn masonry mortar according to SN EN 998-2)Other | – | – | – | – | Mortar |
| Special concretes: pervious concrete, lean concrete, gunite (dry shotcrete), wet shotcrete (HBV),Other | – | – | – | – | Concrete, Steel fibre concrete, Anhydrite screed |
| Transport with truck mixer, silo vehicles, dump trucksOther | – | – | 32-40 t gross weight (special vehicles) | – | Gravel, Sand, Concrete |
| Special vehicles with conveyor beltOther | – | – | Payload 20 t (5-axle) | – | Gravel, Sand, Concrete |
| Special vehicles with pumpOther | – | – | – | – | Concrete |
| Landfill / recultivationOther | – | – | – | – | Construction waste |
| Factory production control (FPC) with in-house laboratory (grading curves,Testing | – | – | – | – | Concrete, Mineral aggregate, Mortar |
13 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Gravel processing plant | Ammann Maschinenfabrik AG, Langenthal Ammann AS 1 control system | 1 | Max. capacity round material: 200 t/h, crushed material: 70 t/h, 17 components | 1980 (Neub | Oppligen |
| Concrete mixing plant | – | 2 | – | 1986 / 196 | Oppligen |
| Chamber filter press | – | 1 | – | 1996 | Oppligen |
| Cement silo systems | – | – | – | 2001 (Erwe | Oppligen |
| Crushing plant | – | 1 | – | – | Oppligen |
| Wheel loader | – | – | – | – | Oppligen |
| Truck mixer | – | – | – | – | – |
| Silo vehicle | – | – | – | – | – |
| Dump truck | – | – | – | – | – |
| Special vehicle with conveyor belt (4-axle, 32t/15t payload) | – | – | – | – | – |
| Special vehicle with conveyor belt (5-axle, 40t/20t payload) | – | – | – | – | – |
| Special vehicle with pump | – | – | – | – | – |
| Screening machine | – | – | – | – | Oppligen |
Quality and certification
The products are subject to factory production control (FPC) with an in-house laboratory for grading curves as well as fresh and hardened concrete testing according to SN EN 206:2013. For special tests such as freeze-thaw with de-icing salt or chloride resistance, accredited Swiss testing institutes are engaged.
| Evidence | Oppligen |
|---|---|
| SÜGB concrete SN EN 206:2013 + A2:2021 | |
| SÜGB mortar EN 998-2 (System 2+) | |
| SÜGB aggregate for concrete EN 12620 (System 2+) | |
| SÜGB aggregate for mortar EN 13139 (System 2+) | |
| SÜGB aggregate for asphalt EN 13043 (System 2+) |
History
- 1927
Brothers Fritz and Hans Daepp begin gravel extraction in Oppligen.
- 1936
First processing plant from Ammann, Langenthal.
- 1947
Conversion of the Saurer truck to wood gas due to petrol rationing.
- 1967/68
Construction of a second concrete plant.
- 1970
Start of extraction in the Ried gravel pit, municipality of Kirchdorf (dry extraction).
- 1980
New construction of the gravel processing plant.
- 1986
New construction of the concrete mixing plant.
- 1996
New construction of the chamber filter press.
- 2001
Expansion of the cement silo systems.
- 2003
Conversion of the concrete plant.
- 2004
New construction of office building and dispatch.
- 2006
Handover of management to Christoph, Bernhard and Daniel Lädrach.
- 2008
New construction of the garage hall for wheel-loader tyres.
- 2014
Founding of Daepp Holding AG Oppligen.