LABORATORY SERVICES
Our laboratories are equipped with state-of-the-art scientific equipment. The FEhS Institute is accredited by the Deutsche Akkreditierungsstelle GmbH (DAkkS) according to DIN EN ISO/IEC 17025 for more than 70 tests. We provide you with well-founded support in the characterisation of your products.
POWER SPECTRUM
In our seven laboratories, we offer you the possibility of analysing a wide range of substances chemically, mineralogically, physically or thermally. The following list offers a quick overview of the substances and test methods that are standard in our product portfolio.
MATERIAL TESTING
Raw materials for concrete, mortar and screed
• Binder
– Cement (DIN EN 197-1; ASTM C 150, ASTM C595)
– DIN EN 197-5, DIN1164-10; DIN 1164-11
• Additives
– Ground granulated blast furnace slag (DIN EN 15167, ASTM C989)
– Fly ash (DIN EN 450-1, ASTM C618)
– Silica dust (DIN EN 13263-1, ASTM C1240)
– Filler (DIN EN 12620)
– Pigments (DIN EN 12878)
Volker Feldrappe
Dr.-Ing.
Head of cement laboratory
+49(0)2065-994541
v.feldrappe@fehs.de
• Admixtures (DIN EN 934-2, DIN 934-3)
– Concrete plasticiser
– Superplasticiser
– Air entraining agent
– Solidification accelerator
– Retarder
• Mixing water
– Mixing water (DIN EN 1008)
– Residual water (DAfStb – Residual Water Guideline)
Dirk Lohmann
Dr. rer. nat.
Head of chemistry laboratory
+49(0)2065-994543
d.lohmann@fehs.de
• Aggregate
– for concrete (DIN EN 12620)
– for mortar (DIN EN 13139)
– for hydraulically bound building materials (DIN EN 13424)
Klaus Bussmann
Dipl.-Ing.
Head of KompetenzForum Bau
+49(0)2065-994587
k.bussmann@fehs.de
Concrete – fresh concrete, hardened concrete and durability
• Concrete
– Fresh concrete (DIN EN 12350)
– Hardened concrete incl. durability (DIN EN 12390)
– Water, soil and gases attacking concrete (DIN 4030)
Klaus Bussmann
Dipl.-Ing.
Head of KompetenzForum Bau
+49(0)2065-994587
k.bussmann@fehs.de
Road/path construction materials
• Armourstones (DIN EN 13383; TL Armourstones)
• Track ballast (DIN EN 13450)
• Aggregates (DIN EN 12620; DIN EN 13043; DIN EN 13242;
TL Beton-StB; TL Asphalt-StB; TL Gestein-StB; TL Pflaster-StB)
• Building material mixtures (DIN EN 13285; TL SoB-StB; TL G SoB-StB)
• Soils (TL BuB E-StB)
• Further services
– Sampling
– In-house and external monitoring
– Control testing of factory production control for mixtures of building materials
– Certification of conformity of factory production control for harmonised construction products
– Testing of mechanical rock as well as mixture specific properties
– Field measurements
Dirk Lohmann
Dr. rer. nat.
Head of chemistry laboratory
+49(0)2065-994543
d.lohmann@fehs.de
Fertiliser
• Inspection of fertilisers from converter limes and natural limes according to
German Fertiliser Ordinance (DüMV) of 05.12.2012, last amended on 02.10.2019:
– Screening/sieving process determination (VDLUFA MB II.1-6.5.1/6.5.2),
– of the CaO- and MgO-content (DIN EN ISO 12677 [2013-02]),
– of base effectiveness (DIN EN 12945, method B),
– of reactivity (VDLUFA MB II.1-6.7),
– of trace element content in solids (DIN EN ISO 17294-2 [2017-01]).
Hans-Peter König
Dr. sc. agr.
Head of department for fertilisers
+49(0)2065-994569
hp.koenig@fehs.de
Soil and rock analysis
• Characterisation of unknown samples
• Components that lead to an increase in volume X
Lars Gronen
Dr. rer. nat.
Head of physics laboratory
+49(0)2065-994526
l.gronen@fehs.de
Testing of other products and materials
• Aggregate for asphalt (DIN EN 13043)
• Sand-lime brick standard test (DIN EN 771-2), room resistance tests
• Lime: standard test (DIN EN 459)
• Pigments
• Thermal insulation boards: Compressive strength (DIN EN 826)
• Sand and gravel for treating water for human consumption (DIN EN 12904)
• Play sand: Ministry Circular (21. Nov. 2018)
• Material hardness by means of microvicker hardness test
• Thermal conductivity by means of HotDisk
CHEMICAL ANALYTICS
• XRF (major and minor components)
• ICP-MS (trace and ultra-trace analysis)
• spectroscopy (declaration and compliance tests)
• Ion chromatography (anion and salt analyses)
• Reference procedure (arbitration analysis)
• ATR (production control, productionmonitoring)
• Element analytics (C, S)
Dirk Lohmann
Dr. rer. nat.
Head of chemistry laboratory
+49(0)2065-994543
d.lohmann@fehs.de
ENVIRONMENTAL ANALYTICS
• Availability test
• CEN/TS 16637-2, 64 day test
• Landfill Ordinance
• Substitute Building Materials Ordinance
• Joint Ministerial Gazette Saarland
• LAGA Boden (Joint Federal/State Working Group on Waste (LAGA) – Soil)
• LAGA Waste incineration ash
• LAGA Recycling/construction waste
• LUA NRW MB7
• NRW decree
• RAL-GZ 510 (ironwork slag for road construction)
• RAL-GZ 511 (metalwork slag – quality)
• RAL-RG 501/1 (mobile treated recyled construction waste)
– REACH Annex 1
(• RoHS (2002/95/EG)
• Saxony-Anhalt Ministry sheet (1998) Tab. 10
• Technical Instructions on Municipal Waste (TASI)
• TL Gestein-StB 2004 (technical delivery terms for aggregates in road construction)
• TL Wasserbausteine 2003 (technical delivery terms for armourstone in waterway regulation)
• TL-Streu (technical delivery terms for spreading materials for winter road thawing)
• Drinking Water Ordinance 2001
• Underground Waste Stowage Ordinance
• Verwerteerlass (Re-utilisation decree)
Anna Sokol
Dr. rer. nat.
Head of department for environment
+49(0)2065-994565
Mail: a.sokol@fehs.de
STRUCTURAL INVESTIGATION/DAMAGE ANALYSIS
• Taking samples from structures (drill cores, drill dust)
• Strength tests with the rebound hammer
• Surface/adhesive tensile strength or tear strength
• Carbonation depth
• Concrete cover (non-destructive line and area scans)
• Potential field measurement
• Crack recording, setting plaster marks
• Shrinkage measurements
• Roughness depth
• Moisture content e.g. with the CM method
• Layer thickness measurement, e.g. with the stereo microscope
• Chemical analyses of building samples (e.g. chloride and sulfate content)
Klaus Bussmann
Dipl.-Ing.
Head of KompetenzForum Bau
+49(0)2065-994587
k.bussmann@fehs.de
