PRIMA100 LWD

PRIMA100 - Sweco´s Light Weight Deflectometer for measuring bearing capacity and compaction degree of natural soil and foundation layers.

Bearing capacity is an important parameter. Just as important as the compaction degree. PRIMA 100 is easy to use and provides first-class measurements of the bearing capacity of natural soil and foundation layers. An integrated high-precision load cell measures the impact load of each individual measurement providing a correct bearing capacity result irrespective of soil type and material.

PRIMA100 complies with: ASTM 8325, BS1924-2 and other international standards.

Reliability & Quality Assurance

• Know-how of producing Falling Weight Deflectometers since 1965
• Upgradable Equipment to adapt to your needs
• Accurate data output with high repeatability and reproducibility
• Supplied, tested, and applicable under worldwide climate and weather conditions
• The only AASHTO-certified calibration center outside North America complying with: SHRP-LTPP AASHTO R32-11 protocol and CROW
• CE marked quality-tested durable components
• 24 months warranty

PRIMA100 LWD, with an integrated load cell and geophone, can measure applied load and the resultant deflection from which the surface modulus is calculated. The drop height can be varied to obtain accurate stress application and to comply with the requirements of IAN 73/06 Rev and other international standards.

This also allows the user to assess the stress sensitivity of the foundation materials easily. PRIMA100 LWD can be used to assess the effect of soft layers below capping or sub-base; particularly useful when there is a water ingress or drainage problem. This can be identified by changes in the deflection time history, load pulse time or reduction in surface modulus in these areas. PRIMA100 LWD records the complete time history of the load pulse and resultant deflection which can then be analysed at a later stage.

Know-how of producing Falling Weight Deflectometers since 1965. Accurate data output with high repeatability and reproducibility. Supplied, tested, and applicable under worldwide climate and weather conditions

We create value

The combination of knowledge, expertise, and experience within road and airport maintenance systems gives Sweco a solid basis for the development of reliable Road Asset Management System RoSy® RAMS and Airport Management System, RoSy® APMS. We apply the systems in our daily consultancy services in combination with measuring equipment such as our falling weight deflectometers for bearing capacity measurements, PRIMAX, and PRIMA 100.

We work with projects from start to end and provide consultancy services in connection with, e.g.:

• Planning - design - condition registrations
• Financial optimisation
• Construction work where short time horizons are a challenge
• Repair and maintenance of air and landside pavements
• Asphalt mixes and recipes
• Alternative materials such as recycled materials
• Supervision and measurements in the field and geotechnical

How can we assist you?