Portland cement will set and harden under water: True or False?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Prepare for the ACI Concrete Finisher Test. Practice with multiple choice questions and gain insights with explanations. Ensure your success with targeted studying and exam strategies!

Multiple Choice

Portland cement will set and harden under water: True or False?

Explanation:
Portland cement is hydraulic, meaning it reacts with water to harden. When mixed with water, chemical hydration forms calcium silicate hydrates and calcium hydroxide that bind the paste and any aggregates, and these reactions proceed whether the mixture is in air or underwater. So it will set and harden underwater. Additives aren’t required for underwater setting, though they can adjust setting time or workability and special underwater concrete methods can help control washout.

Portland cement is hydraulic, meaning it reacts with water to harden. When mixed with water, chemical hydration forms calcium silicate hydrates and calcium hydroxide that bind the paste and any aggregates, and these reactions proceed whether the mixture is in air or underwater. So it will set and harden underwater. Additives aren’t required for underwater setting, though they can adjust setting time or workability and special underwater concrete methods can help control washout.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy