
Production and distribution of asphalt mix and road construction materials for structural, civil and pipeline engineering

Kurpfälzische Asphaltmischwerke GmbH & Co. KG
Bruchsal · Heidelberg · MannheimNew on Amplifa
Asphalt mix for northern Baden and the Kurpfalz region
Kurpfälzische Asphaltmischwerke GmbH & Co. KG (KAM) has been a manufacturer of bituminous mix and the associated construction materials since 1971. The company produces hot rolled asphalt, mastic asphalt, low-temperature asphalt, open-graded asphalt (drainage asphalt) and stone mastic asphalt for the complete pavement structure of traffic areas. The product range also includes road construction materials such as bitumen emulsions, tack coats, joint sealing strips, hot- and cold-pour compounds, rail pouring compounds and cold asphalt, as well as special construction materials such as coloured asphalt and semi-rigid surface courses with flowing mortar infill. The asphalts are used primarily in road, bridge and hydraulic engineering, for screeds in building construction and for sealing applications in landfill and hydraulic engineering. Production takes place at three modern asphalt mixing plants in Bruchsal, Heidelberg and Mannheim; the company delivers orders from Karlsruhe via the Palatinate to the Rhein-Neckar district. An in-house laboratory with testing equipment safeguards the quality of the mix formulations.
- Site
- Bruchsal
- Processes
- Production of asphalt mix (hot rolled asphalt), Production of mastic asphalt, Production of low-temperature asphalt, Production of open-graded asphalt (drainage asphalt), Production of road construction materials (bitumen emulsions, tack coats, joint sealing strips,, Production of coloured asphalt, Production of semi-rigid surface course (flowing mortar infill), Extraction analysis for determining binder content
- Materials
- Bitumen, Polymer-modified bitumen, Mineral aggregates, Hot rolled asphalt, Mastic asphalt, Low-temperature asphalt, Open-graded asphalt, Cold asphalt
- Certificates
- ISO 9001:2015, ISO 50001
- Founded
- 1971
- Industries
- Road construction, Civil engineering, Pipeline construction, Bridge construction, Hydraulic engineering, Building construction (screeds)
- 01
Procurement of bitumen, polymer-modified bitumen and mineral aggregates
- 02
Incoming goods inspection of aggregates, reclaimed asphalt and milled material
- 03
Production of the asphalt mix in the mixing plants
- 04
Laboratory testing and quality control
- 05
Distribution and delivery by truck to the construction site
Mix types and raw materials
Hot rolled asphalt
For base, binder and surface courses as well as stone mastic asphalt, among other things for federal highways and motorways.
Mastic asphalt
Hot asphalt with liquid processing properties for high-quality surfaces indoors and outdoors as well as bridge superstructures.
Low-temperature asphalt
Reduces emissions, vapours and aerosols and lowers energy consumption during production.
Open-graded asphalt (drainage asphalt)
Minimises rolling noise and absorbs rainwater; also water-permeable for surfaces capable of infiltration.
Cold asphalt
For rapid pothole repair and maintenance of traffic areas.
Coloured asphalt
With special binders and colour pigments for architectural design of traffic areas and footpaths.
Semi-rigid surface courses
Void-rich skeleton structure, filled with special flowing mortar, for heavily loaded industrial areas.
Road construction materials
Bitumen emulsions, tack coats, joint sealing strips as well as hot- and cold-pour compounds for maintenance.
Rail pouring compounds
Pouring compounds for applications in track construction.
Bitumen / polymer-modified bitumen
Binders of the asphalt mixes, classified by softening point and needle penetration.
Mineral aggregates
Natural aggregates as the basis of the mix formulations.
Mixing plant locations

Bruchsal
DEMixing plant and distribution
- Materials
- Hot rolled asphalt, mastic asphalt, low-temperature asphalt, special construction materials
- Asphalt mixing plant
Heidelberg
DEMixing plant
- Materials
- Hot rolled asphalt, mastic asphalt, low-temperature asphalt, special construction materials
- Asphalt mixing plant
Mannheim
DEMixing plant
- Materials
- Hot rolled asphalt, mastic asphalt, low-temperature asphalt, special construction materials
- Asphalt mixing plant
Products



Inside the production

Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Production of asphalt mix (hot rolled asphalt)Casting | – | – | – | – | Bitumen, Mineral aggregates |
| Production of mastic asphaltCasting | – | – | – | – | Bitumen, Mineral aggregates |
| Production of low-temperature asphaltCasting | – | – | – | – | Bitumen, Mineral aggregates |
| Production of open-graded asphalt (drainage asphalt)Casting | – | – | – | – | Bitumen, Mineral aggregates |
| Production of road construction materials (bitumen emulsions, tack coats, joint sealing strips,Casting | – | – | – | – | Bitumen |
| Production of coloured asphaltCasting | – | – | – | – | Bitumen, Special binders, Colour pigments, Mineral aggregates |
| Production of semi-rigid surface course (flowing mortar infill)Casting | – | – | – | – | Flowing mortar, Mineral aggregates |
| Extraction analysis for determining binder contentTesting | – | – | – | – | Asphalt, Bitumen |
| Sieve analysis for determining particle size distributionTesting | – | – | – | – | Mineral aggregates, Asphalt |
| Production of Marshall specimensTesting | – | – | – | – | Asphalt |
| Determination of bulk and apparent densityTesting | – | – | – | – | Asphalt |
| Binder recovery using a rotary evaporatorTesting | – | – | – | – | Bitumen, Asphalt |
| Ring and ball softening point / needle penetration for bitumen classificationTesting | – | – | – | – | Bitumen, Polymer-modified bitumen |
| Elastic recovery of polymer-modified bitumenTesting | – | – | – | – | Polymer-modified bitumen |
| Incoming goods inspection of aggregates, reclaimed asphalt and milled materialTesting | – | – | – | – | Aggregates, Reclaimed asphalt, Milled material |
2 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Asphalt mixing plant | – | 3 | – | – | Bruchsal, Heidelberg, Mannheim |
| Laboratory with testing equipment (including rotary evaporator, Marshall presses, sieve systems) | – | 1 | – | – | – |
Certified quality
KAM asphalts are certified quality construction materials made from natural materials; strict internal and external quality controls accompany production. An in-house laboratory performs extraction and sieve analyses, Marshall tests, density determinations, binder recovery by rotary evaporator and bitumen classifications.
| Evidence | Bruchsal | Heidelberg | Mannheim |
|---|---|---|---|
| ISO 9001:2015 | |||
| ISO 50001 |
Company history
- 1971
Foundation of Kurpfälzische Asphaltmischwerke GmbH & Co. KG