Expert Assessment and Diagnostics

Concrete construction, expert assessment and structural diagnostics
Technical Expertise :

As an independent company, Cementys® performs technical assessments on concrete structure health status such as:

  • Outstanding mechanical loads (earthquake, shock, geotechnical risks, undistributed overloads…)
  • Internal or external chemical attack (water inlet, carbonation, acids, percolation…)
  • External challenging environmental conditions (thermal and hydric gradient, curing concrete, water infiltration, standing water…)

These assessments rely on experimental and numerical means owned by Cementys. In certain cases, we may recommend performing specific analyses by our academic and scientific partners.

Diagnosis :

The company offers specific operations of inspection and survey to assess works’ state of health (diagnosis) and rationalize maintenance interventions.

  • In situ sustainability indicators: permeability (PermInSitu), corrosion (CorroVolta), carbonation / chlorination
  • Water inlet and leaks expert assessment over structures (neutron radiography, local capacitive probe, tracer)
  • Cracks monitoring (crack sensors, acoustic emission, depth measurement by ultrasound)
  • In-situ stress measurement (InsideStress)
  • Non-destructive testing for a concrete survey (Ground Penetrating Radar, mechanical impedance, impact echo method, ultrasonic velocity, Test Hammer)
  • Detection and localization of concrete reinforcing bars (ferromagnetic detection and Ground Penetrating Radar)
  • Sampling (diamond core drilling) and sustainability measurement in laboratory (porosity, permeability, chloride diffusivity, cement content)
  • Residual lifetime studies of a concrete structure (prognosis) from laboratory tests and/or numerical simulations (identified models of permeation/diffusion)


  • Legal experts requiring reliable measurement and survey from an independent company (intervention as a third party)
  • Industrial and commercial site managers, requiring a specific survey for aging structures or the regulatory compliance of their site
  • Concrete infrastructure managers (harbor wharves, sewage network, military infrastructure)


  • Security Correspondent
  • Confidential Defense Clearance
  • Electrical Clearance (B2/H2, B1/H1)
  • CACES 1B and 3B aerial lift license
  • Autonomous Inspection Drone (200m range, wide-angle lens, 92°, 720pHD camera 20fps)
  • CACES Minipelle permit for survey/ excavation
  • Airport track permit
  • Radiation protection training ( work under ionizing radiation)
  • Ability to work underground and high above the ground (rope access technician)
  • Chemical risk clearance (levels 1 and 2)
  • 4 x 4 utility vehicle for difficult access (Land Rover Defender)

Recent projects

  • Expertise on pathological construction work and detailed inspection
  • Expertise on reinforced concrete for parking lot
  • Determination of in-situ mechanical strain (InsideStress)
  • The survey, inspection, and instrumentation of a shell in concrete
  • Survey of a slab in pre-stressed concrete