9 Questions
What should be done after filling the mold with mortar?
Tamp as specified for the first layer
When should the mold be lifted away from the mortar?
1 min after completing the mixing operation
How many times should the table be dropped after filling the mold?
10 times in 6 s
How many layers should the mortar be placed into the 400 mL measure?
Three equal layers
How many times should each layer be tamped around the inner surface of the 400 mL measure?
20 times
What should be done with the final layer of mortar in the 400 mL measure?
Overfill approximately 20 mm
How many passes over the entire surface should be made with a straightedge to cut off excess mortar in the 400 mL measure?
Two passes
When should tapping around the sides of the 400 mL measure be done?
'After filling and tamping in three layers'
What is to be done after completing pouring and tamping mortar in three equal layers into the 400 mL measure?
Tap lightly on five different points around the outside of the measure.
Learn about physical tests of cement for construction including air content, flow, mechanical mixing, and specifications of standard sand. This quiz covers ASTM standards and testing methods for hydraulic cement mortar.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
