The Industrial Materials Unit – Civil (IMU-Civil) has developed specialized capabilities in Civil Engineering issues with respect to the Construction industry and a wide range of construction materials.
We provide testing and consultancy services primarily to the Building and Construction industry.  However, our reputation for problem solving and accurate, independent analysis has also brought clients from the Energy sector, the Manufacturing sector, local and regional standards organizations, other government agencies, and homeowners. The Laboratory and Field Tests commonly requested for Concrete, Aggregate, Asphalt and Concrete Products are listed below as well as the field services we provide.

Laboratory Tests on Aggregate

  • Sieve analysis (wet and dry)
  • Organic Impurities
  • Soaked and Unsoaked CBR
  • Sulphate soundness 
  • Aggregate Crushing Value
  • Elongation Index
  • Water Absorption
  • Atterberg Limits
  • Standard and Modified Proctor
  • Los Angeles Abrasion
  • Aggregate Impact Value
  • Flakiness Index
  • Specific Gravity
  • Ten percent fines
  • Fractured faces

Laboratory Tests on Asphalt

  • Marshall Stability and Flow
  •  Asphalt content
  • Maximum theoretical specific gravity
  •  Bulk specific gravity
  •  Air voids

Laboratory Tests on Concrete

  • Compressive strength of cubes, cylinders, cores, blocks, slabs, pavers, etc.
  • Asphalt mix designs
  • Non destructive testing of concrete

Field Services

  • Nuclear density testing
  • Aggregate sampling
  • Asphalt sampling
  • Concrete sampling – preparation of test specimens, temperature and slump
  • Asphalt and concrete coring
  • Slip resistance testing

Major Equipment

  • Compression machine.
  • Marshall tester for asphalt
  • CBR tester for aggregates
  • Nuclear density gauges for determining site compaction
  • Non Destructive Testing (NDT) equipment
    • PUNDIT (Ultrasound testing)
    • Covermeter (locating and sizing rebars in concrete)
    • Schmidt hammers (rebound hammer testing)
    • Half cell (corrosion of rebars in concrete)

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