Bitumen testing is an indispensable process in the field of road construction and maintenance. It involves evaluating the physical and chemical properties of bitumen, a viscous liquid or semi-solid form of petroleum, which serves as a primary binder in asphalt mixtures.

The main objective of bitumen testing is to ascertain its suitability for road construction and other asphalt-based applications. This involves assessing characteristics like viscosity, penetration, softening point, ductility, and resistance to aging. These properties dictate bitumen’s performance under various environmental conditions and loads, thus helping to ensure the safety, durability, and efficiency of the road structures.

Bitumen testing provides several benefits. Firstly, it aids in determining the appropriate grade of bitumen for specific applications, thus ensuring optimum performance of the asphalt mix. Secondly, it aids in identifying potential issues like low-temperature cracking, high-temperature rutting, or aging that could affect the lifespan of the road. Lastly, it aids in the prediction and understanding of the pavement’s long-term performance, which can lead to cost savings in terms of maintenance and repair.

Bitumen testing should ideally be performed before the bitumen is used in the asphalt mix, during its manufacturing process, and also when it arrives at the construction site. This guarantees that the bitumen has retained its desired properties throughout its journey from the refinery to the site.

Below is the list of the most common cement tests that we undertake for our clients. All our tests are undertaken in accordance with either the British Standard of ASTM:


  1. Penetration Test: Determines the hardness or softness of bitumen by measuring the depth to which a standard needle penetrates it.
  2. Viscosity Test: Measures the fluidity of bitumen, which affects its ability to coat aggregates.
  3. Softening Point Test: Establishes the temperature at which bitumen softens, an indicator of its performance under high temperatures.
  4. Ductility Test: Evaluates the ability of bitumen to stretch without breaking, which impacts its resistance to cracking.
  5. Flash and Fire Point Test: Assesses the temperatures at which bitumen ignites, which is critical for safety during handling and storage.
  6. Solubility Test: Determines the purity of bitumen by measuring its solubility in a specific solvent.
  7. Loss on Heating Test: Measures the weight bitumen loses upon heating, which can indicate the presence of volatile matter.
  8. Float Test: Estimates the consistency of bitumen at high temperatures.
  9. Retained Penetration and Ductility Test after Thin Film Oven Test (TFOT): Assesses the effect of heat and air on a thin film of bitumen.
  10. Elastic Recovery Test: Evaluates the elasticity characteristics of modified bitumen.

Please contact us for further details