Contractor's Guide to Quality Concrete Construction Flashcards
Slump test
Contractor’s guide to quality concrete construction
PG 11
Air entrainment
Contractor’s guide to quality concrete construction
PG 11
Seven day compressive strength
Contractor’s guide to quality concrete construction
PG 13
Types of Portland cement
Contractor’s guide to quality concrete construction
PG 14
Fly ash
Contractor’s guide to quality concrete construction
PG 15
Water cement ratio (weight ratio) determines quality, and durability strong stone increases abrasion resistance
Contractor’s guide to quality concrete construction
PG 17
Large aggregate produces more economical concrete
Contractor’s guide to quality concrete construction
PG 17
High range water reducing admixtures - super plasticizers, retarders, accelerators
Contractor’s guide to quality concrete construction
PG 19
Delivery time for ready mixed concrete and number of revolutions
Contractor’s guide to quality concrete construction
PG 38
Isolated footing
Contractor’s guide to quality concrete construction
PG 47
Designer concerned with weight and shape
Contractor’s guide to quality concrete construction
PG 54
Form types
Contractor’s guide to quality concrete construction
PG 57
Fiber tube forms over 15 feet require stiffeners
Contractor’s guide to quality concrete construction
PG 62
Insulating concrete form stay in place
Contractor’s guide to quality concrete construction
PG 64
Duplex nails
Contractor’s guide to quality concrete construction
PG 66
Concrete weights 150 pounds per cubic square feet cubed
Contractor’s guide to quality concrete construction
PG 70
Rate of pour
Contractor’s guide to quality concrete construction
PG 75
Typical form release agent diesel oil, maximum drop distance 5’
Contractor’s guide to quality concrete construction
PG 76
Engineer to specify when forms are to be removed
Contractor’s guide to quality concrete construction
PG 81
Test cylinders are typically used, non-destructive testing may be used
Contractor’s guide to quality concrete construction
PG 81
Compression cylinder test results prior to removing shoring
Contractor’s guide to quality concrete construction
PG 83
Table 6.1 - rebar sizes, epoxy coating on rebar prevents corrosion
Contractor’s guide to quality concrete construction
PG 94
Concrete cover table
Contractor’s guide to quality concrete construction
PG 100
Stirrup tolerance - plus or minus 1”
Contractor’s guide to quality concrete construction
PG 101
Concrete joint types
Contractor’s guide to quality concrete construction
PG 109
Warping joints
Contractor’s guide to quality concrete construction
PG 120
Saw joints should be installed between 4 hours and 12 hours after the concrete is poured
Contractor’s guide to quality concrete construction
PG 122
Wet down ground under slab to prevent loss of water in concrete
Contractor’s guide to quality concrete construction
PG 151
Pump mix stone should be rounded
Contractor’s guide to quality concrete construction
PG 176
The vibrator consolidates concrete
Contractor’s guide to quality concrete construction
PG 178
The vibrator make stiff concrete more fluid
Contractor’s guide to quality concrete construction
PG 178
20 degree increase in temperature reduces setup tine by 50%
Contractor’s guide to quality concrete construction
PG 180
Never pour on frozen ground, below 40 degrees considered cold weather
Contractor’s guide to quality concrete construction
PG 181
Slab finishing sequence, edging last step after trowel finish, troweling too soon will cause the slab surface to be rough, the bull float nocks down the high and lows
Contractor’s guide to quality concrete construction
PG 183
Curing controls the drying of concrete, curing starts immediately, helps with strength and durability
Contractor’s guide to quality concrete construction
PG 186
Cause of plastic shrinkage cracks. rapid evaporations
Contractor’s guide to quality concrete construction
PG 196cu
Curing cylinders at job site in box - 60-80 degrees
Contractor’s guide to quality concrete construction
PG 201
