Geos Laboratories Company Presentation
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Transcript of Geos Laboratories Company Presentation
A European vision on the testing and analysis of construction materials
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A European Lab
Core technological expertise: • +40 years of experience • More than 400 tests of which
377 are certified • A team of technicians, engineers &
geologists at the top in their field • A comprehensive knowledge of all
possible building materials:
Adjuvants & pigments, aggregates, fillers & stones, asphalt and bitumen, concrete, precast concrete, hydraulic binders, masonry, mortar & protection products, natural stones and rocks, soils
High quality service: • Average delay for a test: 5 days • Cofrac accredited • ISO 17025, CE notified body • Participation in inter laboratory
collaborative trials
A European Lab
Presence: • Servicing companies in 14 countries • A free quote within 24 hours on
request • A technical skilled sales team at your
service
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Transport & Packaging
4 48 √
• Average delay for a test: 5 days. • 3 days on request, if the test allows so
Tests on Concrete:fresh, hardened &
precast
Mechanical Tests
Fresh, hardened & precast concrete
Tests on Concrete: • fresh and hardened • Precast (selon 13369) • Ready-to-use acc. EN 206-1
Tests on cobbles, slabs, curbs, ... As on pipes, manholes, collectors, ...
DurabilityIndicators
The Tests
Gas permeability Measuring the flow of gas passing through a test specimen under constant pressure
Porosity, accessible to water Measuring the percentage of voids connected with the surface within the concrete mass
chlorides diffusion coefficient Measuring the amount of chloride penetration after a fixed period
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The Durability of Concrete
Chemical Tests
GEOS performs the RCM test and steady diffusion test to determine chloride migration
GEOS determines the resistance to carbonation
Examination of the freeze-thaw resistance of concrete. This test can be performed with / without de-icing salts.
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Petrographic Analysis
The Tests
Petrographic examination: • fast and reliable • determines the causes of damage • measures the extent of damage
Evaluating the parameters: • Damage caused by freezing or chemical
corrosion • Cause of cracks • Extent of the corrosion of the armature • Presence of fly ash, slag, ... • Sensitivity of aggregates to RAS
Petrographic examination gives a clear picture of potentially damaging phenomena in concrete
Microscopic AnalysisTests
To check the alkali-reaction phenomenon we perform a microscopic and physical examination on mixtures of concrete and aggregates.
Tests on Hydraulic
Binders
Hydraulic Binders Tests
Physical and chemical properties of cement, fly ash, GGBS (slag) and gypsum.
Notified body EN 450
Complementary Analysis
Tests
Chemical and mineralogical characterization by XRD analysis combined with EMS (Electron Microscope Scanner) provide in-depth information on the properties of materials.
Tests on Aggregates &
Fillers
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Aggregates & FillersTests
Complete characterization of the aggregates according to:
NF P18 545
Testing Methods: EN 12620, EN 13043, EN 12055-1, EN 13139, EN 13242, EN 13383-1, EN13450
To check the alkali-reaction phenomenon, we perform a physical and microscopic examination on
mixtures of concrete and aggregates