pl_flaga50

Diagnosis and repairs of deteriorated reinforced concrete structures

A few words about the author ...

On this website I describe the concrete test methods and repair techniques I have been using in my civil engineering practice for many years:

Concrete Quality & Strength

  • Cut out concrete cores for laboratory tests
  • Rebound hammer (Schmidt hammer) - concrete surface uniformity & strength by rebound
  • Pull-out test – in-place concrete compressive strength
  • Ultrasonic pulse velocity by through transmission – concrete compressive strength & inner defects recognition
  • Pull-off test – bond strength of overlay or tensile strength of substrate
  • GWT in-place test - resistance to water penetration
  • Width of cracks measurement and monitoring

Concrete Geometry

  • Cover meter – pulse induction method to give cover and bar size of reinforcement
  • Impact Echo method - to give element thickness or inner defects location
  • Ground Penetrating Radar - GPRs system for imaging of rebars, post-tensioning, services, inner defects and moisture in concrete

Defects detection in concrete

  • Ultrasonic pulse velocity by through transmission
  • Impact Echo method – to locate defects in concrete due to structural damage or poor concrete placement
  • Slab Impulse Response method - rapid testing for poor concrete placement and voids beneath slab pavements or foundations
  • Ground Penetrating Radar - GPRs system - detecting internal voids, locating rebars, tendons, pipes
  • Ultrasonic pulse-echo method (MIRA) - 3D concrete imaging system for flaws and thickness measurement – introduction to the method
  • Infrared Thermography - locating leakages, damp areas, delamination – introduction to the method

Corrosion of steel and concrete

  • RCT - rapid chloride penetration test
  • Rainbow Indicator – carbonation depth and profile
  • Cover meter – pulse induction method to give cover and bar size of reinforcement
  • Half-cell potential method
  • Concrete resistance
  • Galvanic pulse method

If you are interested in concrete test methods and repair techniques or have any questions about their application, do not hesitate to ask me for more information.

 

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