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NASCLA > Contractor's Guide to Quality Concrete Construction > Flashcards

Contractor's Guide to Quality Concrete Construction Flashcards

1
Q

Slump test

A

Contractor’s guide to quality concrete construction
PG 11

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2
Q

Air entrainment

A

Contractor’s guide to quality concrete construction
PG 11

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3
Q

Seven day compressive strength

A

Contractor’s guide to quality concrete construction
PG 13

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4
Q

Types of Portland cement

A

Contractor’s guide to quality concrete construction
PG 14

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5
Q

Fly ash

A

Contractor’s guide to quality concrete construction
PG 15

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6
Q

Water cement ratio (weight ratio) determines quality, and durability strong stone increases abrasion resistance

A

Contractor’s guide to quality concrete construction
PG 17

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7
Q

Large aggregate produces more economical concrete

A

Contractor’s guide to quality concrete construction
PG 17

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8
Q

High range water reducing admixtures - super plasticizers, retarders, accelerators

A

Contractor’s guide to quality concrete construction
PG 19

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9
Q

Delivery time for ready mixed concrete and number of revolutions

A

Contractor’s guide to quality concrete construction
PG 38

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10
Q

Isolated footing

A

Contractor’s guide to quality concrete construction
PG 47

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11
Q

Designer concerned with weight and shape

A

Contractor’s guide to quality concrete construction
PG 54

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12
Q

Form types

A

Contractor’s guide to quality concrete construction
PG 57

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13
Q

Fiber tube forms over 15 feet require stiffeners

A

Contractor’s guide to quality concrete construction
PG 62

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14
Q

Insulating concrete form stay in place

A

Contractor’s guide to quality concrete construction
PG 64

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15
Q

Duplex nails

A

Contractor’s guide to quality concrete construction
PG 66

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16
Q

Concrete weights 150 pounds per cubic square feet cubed

A

Contractor’s guide to quality concrete construction
PG 70

17
Q

Rate of pour

A

Contractor’s guide to quality concrete construction
PG 75

18
Q

Typical form release agent diesel oil, maximum drop distance 5’

A

Contractor’s guide to quality concrete construction
PG 76

19
Q

Engineer to specify when forms are to be removed

A

Contractor’s guide to quality concrete construction
PG 81

20
Q

Test cylinders are typically used, non-destructive testing may be used

A

Contractor’s guide to quality concrete construction
PG 81

21
Q

Compression cylinder test results prior to removing shoring

A

Contractor’s guide to quality concrete construction
PG 83

22
Q

Table 6.1 - rebar sizes, epoxy coating on rebar prevents corrosion

A

Contractor’s guide to quality concrete construction
PG 94

23
Q

Concrete cover table

A

Contractor’s guide to quality concrete construction
PG 100

24
Q

Stirrup tolerance - plus or minus 1”

A

Contractor’s guide to quality concrete construction
PG 101

25
Concrete joint types
Contractor's guide to quality concrete construction PG 109
26
Warping joints
Contractor's guide to quality concrete construction PG 120
27
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
28
Wet down ground under slab to prevent loss of water in concrete
Contractor's guide to quality concrete construction PG 151
29
Pump mix stone should be rounded
Contractor's guide to quality concrete construction PG 176
30
The vibrator consolidates concrete
Contractor's guide to quality concrete construction PG 178
31
The vibrator make stiff concrete more fluid
Contractor's guide to quality concrete construction PG 178
32
20 degree increase in temperature reduces setup tine by 50%
Contractor's guide to quality concrete construction PG 180
33
Never pour on frozen ground, below 40 degrees considered cold weather
Contractor's guide to quality concrete construction PG 181
34
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
35
Curing controls the drying of concrete, curing starts immediately, helps with strength and durability
Contractor's guide to quality concrete construction PG 186
36
Cause of plastic shrinkage cracks. rapid evaporations
Contractor's guide to quality concrete construction PG 196cu
37
Curing cylinders at job site in box - 60-80 degrees
Contractor's guide to quality concrete construction PG 201

NASCLA (23 decks)

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