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Construction Materials Institute, Faculty of Civil Engineering, University of Tehran, Tehran, Iran
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Photometer
It presents the following advantages:
- Glass fiber light guide
- Wide wavelength range
- Gradual filter Thanks to the continuous
- Display of transmission, absorption and concentration
- Optical, electronic and mechanical quality
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Portable Impact-Echo System
Some of the applications for PIES Portable Impact Echo System:
- The thickness of material
- Presence of cracking or delaminations
- Presence of voids or honeycombing
- Determination of crack depth and also strength of concrete
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E-Meter with Standard Bench
For the determination of the resonant frequency of materials
- the only method of calculating the following material parameters non-destructively: Youngs Modulus of Elasticity, Modulus of Rigidity, Poissons Ratio, Damping Constant
- Semi automatic feature facilitates the fast identification of resonance. |

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- E-Meter shown with electro-dynamic test bench with contact type vibration generator and piezoelectric accelerometer contact pick-up
- Arranged for longitudinal resonance test of a 500x100x100mm concrete prism |
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GalvaPulse
Reliably to measure the reinforcement corrosion for:
- Service life estimation
- Evaluating the efficiency of corrosion arresting measures such as application of inhibitors, membranes or electrochemical removal of chlorides
- Condition surveys of suspect reinforced structures, especially structures in wet environment where the classic potential mapping may provide misleading and/or insufficient information
- Monitoring RC structures for corrosion activity
- Testing the corrosion activity in repaired are
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Profile Grinder
With the Profile Grinder concrete powder is ground out at exact, small increments for accurate establishment of the chloride profile :
- following ponding of specimens in the laboratory
- on-site on structures that have been subjected to chlorides, for the purpose of estimating the chloride diffusion coefficient to be used for service life calculations. |
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Corrosion analyzing instrument
- Half-cell corrosion potential method - accurate field potential measurements aid in detecting active corrosion in rebars.
- Concrete resistivity method - the instrument measures the specific electrical resistivity of concrete. |
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Half-cell digital corrosion meter
- Rapid response and stabilisation
- Expandable probe holder for remote surveying
- Accurate estimation of corrosion activity |
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Metal / Cable Detector
- Zoom function for even more accurate locating, thus minimising drilling mistakes
- Locates not only metal but also wooden substructures as well as live and non-live cables
- Indicates the voltage via a high-resolution 5-segment display
- Unambiguous drilling recommendation by means of red/green LED display
- Easy marking of the drilling position with the integrated marker
- Extremely easy operation with automatic calibration
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Length comparator
For determining the changes in length of cement and concrete specimens
This apparatus is used to determine the changes in length of cement prisms in the accelerated soundness test and the linear shrinkage of cement mortar.
The instrument consists of an analogic or digital length gauge, which is mounted on a steel frame. The top anvil is adjustable to suit the required specimen.
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Construction Materials Institute.
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