6.14.1. Standards Followed

Try these first

1. 1.

   What is IS 3812?

   Hint

   Look for what IS codes signify.

2. 2.

   Define Loss on Ignition (LOI).

   Hint

   Think about tests that measure residues.

3. 3.

   What is IS 12089 related to?

   • Silica Fume
   • Fly Ash
   • GGBS

   Hint

   Think about the standards for various mineral admixtures.

4. 4.

   True or False: The Fineness test measures the strength of pozzolanic materials.

   • True
   • False

   Hint

   Consider what the test actually evaluates.

5. 5.

   A construction project is using fly ash that fails the Loss on Ignition test. What implications could this have on the concrete's performance?

   Hint

   Consider how impurities in fly ash might affect concrete.

6. 6.

   Calculate the required Pozzolanic Activity Index needed for a specific project that aims for a minimum strength gain of 15 MPa over 28 days. Discuss the relevance of adhering to this index.

   Hint

   Think about the strength relationships and how you define adequate pozzolanic properties.