Grouting,leveling,anchoring Flashcards
vials on levels read
horizontal
transverse
main vial on master precision level has an accuracy to
10 second
master precision level has a division of /per 12”
.0005
precision level sensitive to /per 12”
.005
carpenter and bench level are sensitive /per 12”
.02
diameter of piano wire
.02
cement based grout should not be used in temperatures below
5 degrees Celsius
aggregate in cement based grout should not be over
3/8 in diameter
what are 4 advantaged of polymeric grout
non shrinking
impervious to moisture, corrosion, chemicals, vibration and impact
can be used in cold temperatures
polymeric grout has a workable time of
30-60 min
steel wedge has a taper of
.5 to .005
the transverse dial on a master precision dial is used for
correctly position the level when leveling a shaft
proper grout mixture is
1 part cement, 2 parts sand and 3 parts aggregate
how many days for concrete to reach working strength
28 days
When a hold down bolt is to be necked down it can be necked down to
thread minor diameter