PELCON runs a specialised laboratory for aggregate and concrete testing, covering numerous test methods. We are highly recognised within the fields of aggregate acceptance testing, concrete microstructure, air void structure and durability testing. Your specimens and samples will be treated professionally and fast.
Main work fields are documentation of concrete quality by testing and analyzing samples and assisting in concrete mix design, as well as testing of aggregates for concrete. Moreover we analyze and detect possible reasons for failure in concrete, ceramic materials and natural stones.
We are internationally recognized for our extensive experience with air void analysis, petrographic analysis and production of flourescence impregnated thin sections and plane sections. One offspring of our continous R&D activities is to service testing laboratories with training and delivery of our specialized technical equipment.
Subjects of damage analysis in concrete:
- Alkali Silica Reaction (ASR)
- Chloride induced reinforcement corrosion
- Cracked concrete floors
- Curing deficiencies
- Delayed Ettringite Formation (DEF)
- Explosive fire spalling
- Fire damage
- Frost damages (in both young and mature concrete)
- Loss of strength due to non-dispersed silica fume
- Map cracking and scaling in trowelled floors
- Micro defects from slipforming
- Poor concrete mix design
- Poor joint quality
- Shrinkage cracks
- Thermo expansion
- Wrong casting and compaction techniques
Subjects of analysis of natural stones & building stones:
Cause of investigation | Rock type |
Crumbling of cladding panels | Limestone |
Expansion/loosening of tiles | Granite |
Frost testing, resistance to salt crystallisation | Granite, limestone, sandstone |
Petrographic and mineralogical characterisation | Various |
Staining of cladding stone | Granite |
Sulphide reactions/expansions | Granite, granodiorite, silicious limestone |
Surface damage in paving stone | Limestone |
Surface detorioration of cladding stone | Granite, marble |
Tiles damage - scaling | Granite, limestone |
Weak corners in paving stones | Granite |