6.5. Testing of Water for Construction Use

Try these first

1. 1.

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

   Hint

   Think about the scale of pH and its effects on concrete.

2. 2.

   Name one of the parameters tested in the chemical analysis of water.

   Hint

   Consider impurities that might harm construction materials.

3. 3.

   What is the acceptable pH range for construction water?

   • 4-5
   • 6-8.5
   • 9-11

   Hint

   Remember the scale of pH!

4. 4.

   Is it true that high chloride levels in water can lead to corrosion in reinforcement steel?

   • True
   • False

   Hint

   Think about the relationship between chlorides and steel.

5. 5.

   If a construction site finds that the groundwater has chloride levels above 700 mg/L, what steps can the engineers take to ensure the quality of water used?

   Hint

   Consider the treatment methods discussed in the chapter.

6. 6.

   During testing, the compressive strength of concrete mixed with a certain water sample was measured at 80% after seven days. What implications does this have for the construction project?

   Hint

   Reflect on how strength indicators impact project viability.