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3 cards from this section. Quick, good the night before a test.
What is the permissible limit of organic matter in construction water?
Remember the standard values provided in IS: 456-2000.
State the acceptable pH value for water used in construction.
Focus on the importance of acidity and alkalinity.
What is the maximum permissible limit for chlorides in plain concrete as specified by IS: 456-2000?
Recall the different standards set for plain and reinforced concrete.
True or False: The pH value of water must be less than 6.0 for it to be suitable for construction.
Think about how pH impacts concrete's chemical environment.
If a construction site uses water with a chloride level of 600 mg/L for mixing concrete, what corrective measures should be taken?
Consider the maximum limits specified in IS: 456-2000.
Design a quality control check for water that includes monthly testing procedures and necessary actions if the water fails to meet required standards.
Outline the steps to ensure compliance on a monthly basis.
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