Specialized laboratory tests

Dutch version

The Magnel Laboratory for Concrete Research has specialized equipment and expertise for the performance of laboratory tests on building materials. The laboratory is renowned for its materials research as well as for its research on the structural behaviour, going from micro- or nanoscale till large scale tests.


The infrastructure comprises:

 

  • A unique central testing hall for large-scale load testing (shear resistance tests of hollow core slabs, bending tests on prestressed concrete beams, etc.).
  • Testing machines with a capacity of up to 10 000 kN in compression and 2 500 kN in tension.
  • A large number of hydraulic jacks for static and dynamic loading tests.
  • Special equipment for measurements and data acquisition.
  • Climate rooms (up to 50°C, 30% - 95% RH – CO2 concentration: 0 - 10 vol%), ovens (up to 1160°C) and freeze chambers (up to -20°C).
  • Test configurations for durability tests: Chloride ingress (CTH, diffusion tests) / Chloride profiles (RCT, titrations) / Carbonation (climate chamber) / Alkali-silica reaction (Oberholster test) / Frost-resistance (in combination with de-icing salts) / Acid resistance (TAP – Testing apparatus for accelerated degradation tests) / Optical microscopy (including the preparation of thin sections) / Submersion in aggressive liquids / Roughness measurements (ALM) / etc.
  • Optical microscopes and equipment for the preparation of thin sections.
  • Equipment for non-destructive testing (e.g. Ultrasonic measurements (FreshCon))
  • Numerous equipment for testing the characteristics of various building materials such as cement, aggregates, concrete, masonry, reinforcement, etc.
    • Cement: Particle size distribution (Laser diffractometer) / Fineness (Blaine) / Hydration heat (Isothermal Calorimeter Tam Air) / Setting behavior (Vicat, FreshCon) / etc.
    • Aggregates: Particle size distribution (sieve analysis) / Water absorption / Density / Shape factor / etc.
    • Fresh Concrete: Consistency (Slump, V-funnel, etc.) / Viscosity (rheometer) / Autogenous shrinkage / Air content / etc.
    • Hardened concrete: Hydration heat ((Semi-) adiabatic calorimeter) / Gaspermeability / Waterpermeability / Porosity (Mercury intrusion porosimeter, etc.) / Air content (Air-void analyser) / Colorimetry / Shrinkage – creep / etc.
    • Masonry: Shear resistance / Bending resistance / Compression tests / etc.
    • Reinforcement: Weld shear force / Tensile tests on prestressed reinforcement / Tests on assembly and transport anchors / Tests on coupling sleeves / etc.

 

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Durability tests: chemical lab - testing apparatus for accelerated degradation tests

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Tests on cement: laser diffractometer

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Mercury intrusion porosimeter: porosity – air void analyser

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Shrinkage and creep measurements

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Mechanical properties: E-modulus – three-point bending test

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Preparation and analysis of thin sections

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Tests on fresh mortar: air content – consistency