Question

What is the optimum finishing slump for light weight concrete?

1) 1 - 2 inches
2) 2 - 4 inches
3) 3 - 6 inches
4) 4 - None of the above

Answer 1

The optimal finishing slump for lightweight concrete is typically between 3 - 6 inches to balance fluidity and shape retention for effective placement and finishing.

Step-by-step explanation:

The question revolves around the optimal finishing slump for lightweight concrete. The finishing slump refers to the consistency of the concrete, which is measured by the distance the concrete slumps after the slump cone is removed.

For lightweight concrete, the desired finishing slump is typically within the range of 3 - 6 inches, which ensures that the concrete is fluid enough for easy placement and finishing, but still holds its shape without becoming too runny or too stiff to work with. It is important to keep this range in mind to maintain the structural integrity and manage the workability of the concrete effectively.