Grouting Leveling And Anchoring Flashcards
What are the disadvantages of a plumb bob
The wind can easily throw it off
What are the three types of levels and there Percision
Master level Percision: .0005
Percision level: .005
Bench level and carpenters level :.01
The limitations of the plumbob can be overcome by using
A piano wire typically 0.020 inch diameter with that heavy weight on the end emerged in a pail of oil
What are the two types of mounting methods
Baseplate and soleplate
What type of machine usually uses leveling feet or leveling screws in the bottom flange on the equipment base
Small and lightweight machinery
What is a wedge used for
Raising machinery to install shims
Why would you use vibration isolators
To eliminate vibration transferring to other parts of the machine
How much lower is a foundation set for allowing of grout
Three-quarter inches to 1 1/2 inches
How many reference lines or datum points should be used
Keep the number of reference lines to a minimum to avoid confusion and take all important measurements from the same side of one reference line only
What is grouting
Grout is a structural connection used to fill the space between the foundation and the machine it transfers the compression and fibrillation load of the machinery easily to the foundation and helps maintain precise alignment
What are the two main types of grout
Cement-based and polymeric
How long can cement-based grout be worked on and how long does it take to achieve full compressive strength
It can be worked on after seven days and reaches full compressive strength after 28 days
How cold can cement-based grout be applied in
+5°C
What are the advantages of polymeric grout
-They are non-shrinking
-They are in pervious to moisture chemicals corrosion impact and vibration
-They can be applied in cold temperatures down to -10°C
They can be put into service less than 16 hours after placing
What are the disadvantages of synthetic grouts
Have a shelflife of only one year and a usable time of 30 minutes to one hour
