9.20.4. X-Ray Diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FTIR)

Try these first

1. 1.

   What does XRD stand for?

   Hint

   Think about the role of X-rays in material analysis.

2. 2.

   What does FTIR measure?

   Hint

   Consider how molecules behave when they absorb infrared light.

3. 3.

   What is the primary function of XRD?

   • To measure molecular vibrations
   • To identify crystalline phases
   • To assess concrete strength

   Hint

   Remember the purpose of X-ray diffraction.

4. 4.

   True or False: FTIR can only identify crystalline phases.

   • True
   • False

   Hint

   Think about the broader applications of FTIR.

5. 5.

   Design an experiment using XRD and FTIR for a new concrete composition intended for extreme environmental conditions. What parameters would you track, and how would analyzing the results inform your study?

   Hint

   Consider what extreme conditions could affect concrete performance.

6. 6.

   Evaluate a hypothetical scenario in which a concrete sample exhibits unexpectedly low durability. How could you utilize XRD and FTIR to diagnose the issue?

   Hint

   Think about how each method reveals different aspects of concrete performance.