6.5.1. pH Test

Try these first

1. 1.

   What does pH measure?

   Hint

   Remember it's a scale!

2. 2.

   What is the ideal pH range for water used in construction?

   Hint

   It’s a specific range mentioned earlier.

3. 3.

   What is the acceptable pH range for water used in construction?

   • 4-6
   • 6-8.5
   • 8.5-10

   Hint

   Remember the specified limits we've discussed!

4. 4.

   True or False: A pH level of 5 is acceptable for concrete mixing.

   • True
   • False

   Hint

   Think about the impact of acidity on strength.

5. 5.

   You are working on a construction site where the water pH was recorded at 8.7. Discuss the implications of using this water and propose a solution.

   Hint

   Consider the effects of alkaline water on cement.

6. 6.

   Design a simple experiment involving pH testing of various water sources (tap, river, groundwater) and describe how you would analyze the results.

   Hint

   Think about aspects of each source that may affect pH.