Amir Yaghoob Farnam Research Group
Amir Yaghoob Farnam Research Group
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Advanced Materials Characterization, Monitoring, and Nondestructive Techniques


Acoustic Emission Longitudinal Guarded Comparative Calorimetry  (AE-LGCC)

This technique is developed in collaboration with the National Institute of Standards and Technology (NIST) and it is capable of monitoring and detecting thermal properties, electrical resistivity, and damage development simultaneously during thermal loading. This technique is very beneficial to correlate the damage development with liquid/solid phase transformation and to understand the source of damage during freezing and thawing.

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Evaluation and Quantification of Chemical Potential of Cementitious Materials to React with Chloride-based Salts

This technique is developed in collaboration with the National Institute of Standards and Technology (NIST) and it is capable of quantifying the potential of the chemical reaction between cementitious materials and various types of chloride-based salts. In this technique, a low-temperature differential scanning calorimeter is used and a novel technique is proposed based on salt-water-cement phase diagram  to quantify the potential of the chemical reaction.  

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Characterization of the Origin and Mode of Cracks in Fractured and ASR Damaged Concrete

This technique is developed in collaboration with Norwegian University of Science and Technology, and the National Institute of Standards and Technology (NIST) and it uses passive acoustic emission technique to determine the origin and mode of cracks in concrete due to mechanical or chemical loading. The mechanical loading is conducted using the wedge splitting test while the chemical distress is conducted using an alkali-silica reaction test. During the test, acoustic activity is monitored and the results are analyzed to determine the source and mode of cracking in concrete samples.

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