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Hardened
concrete
Strength Testing
Compressive strength (cubes, cylinders and cores)
Tensile splitting strength
Flexural strength
Terrazzo Tiles (dimension, transverse strength,
water absorption)
Precast concrete masonry units (dimension and
compressive strength)
Precast concrete paving blocks (dimensions and
compressive strength)
Precast concrete flags, kerbs, channels edgings
and quadrants (dimension, transverse strength,
water absorption)
Durability Studies
Water absorption
Initial surface absorption of concrete (ISAT)
Water permeability (DIN)Porosity (RILEM)
Rapid determination of chloride ion permeability
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Building
Investigations
Concrete coring, with or without compressive
strength
Concrete dust sampling
Chemical analysis (including sulphate and chloride
contents)
Bond strength (concrete, mortar)
Surface hardness using rebound hammer
Hammer sounding surveys
Carbonation depth surveys
Covermeter depth to reinforcement surveys
Half cell potential surveys (reinforcement
corrosion potential)
Ultrasonic pulse velocity measurements (PUNDIT),
concrete quality, cracks and void detection ·
Crack monitoring and investigation
Radar surveys
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Ceramic
tiles
Bond strength (pull-off test)
Dimensions
Flatness, straightness of sides, rectangularity
Water absorption/Porosity
Modulus of rupture/Flexural strength
Compressive strength
Moh's scratch hardness
Resistance to thermal shock
Chemical resistance(including acids and alkali's)
Abrasion resistance
Robinson floor system rating tests
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Chemistry
Analysis of soil, water, aggregates, cement,
concrete
pH value
Sulphate content (water and acid soluble methods)
Chloride content (water and acid soluble methods)
Organic matter content
Calcium carbonate content
Potassium
Mass loss on ignition
Cement and aggregate content of hardened concrete
Cement fineness
Cement heat of hydration
Redox potential
Dissolved oxygen
Electrical conductivity
Salinity
Silica
Suspended solids
Total dissolved solids
Total alkalinity
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