Exam (elaborations)
ACI Flatwork Test
- Module
- ACI Flatwork Test
- Institution
- ACI Flatwork Test
Exam of 1 pages for the course ACI Flatwork Test at ACI Flatwork Test (ACI Flatwork Test)
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ACI Flatwork Testpreconstruction conference - -finisher foreman must attend; decide who can
add water
-slab volume - -LxWxH
-When does concrete HAVE to leave the truck? - -300 rev or 90 min
-Is cement endothermic or exothermic - -Exothermic
-Name the three pour patterns - -Adjacent lanes, Alternate lanes,
checkerboard
-Finishing order - -Bullfloat, Fresno, Joints, 2-3x slab thickness (in. to feet)
-What does a dipstick measure? - -F-numbers
-When are F-numbers measured? - -24-72 hours
-T/F calcium chloride with metal reinforcements? - -False
-vapor barrier - -add 2in sand to stop curling
-Strength formula - -W/C ratio
-Joint Spacing - -10-20 ft
-Highway Straightedge - -Higher flatness ratings
-Bleed water causes - -Crazing
-When beginning to edge - -run trowel between formwork and concrete;
start away from corner
-To slow curing in hot weather - -fog sprayer or spray on retarder
-Thermal blankets - -below 40 degrees
-blisters - -smaller then a nickel
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