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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
Q

Concrete joint types

A

Contractor’s guide to quality concrete construction
PG 109

26
Q

Warping joints

A

Contractor’s guide to quality concrete construction
PG 120

27
Q

Saw joints should be installed between 4 hours and 12 hours after the concrete is poured

A

Contractor’s guide to quality concrete construction
PG 122

28
Q

Wet down ground under slab to prevent loss of water in concrete

A

Contractor’s guide to quality concrete construction
PG 151

29
Q

Pump mix stone should be rounded

A

Contractor’s guide to quality concrete construction
PG 176

30
Q

The vibrator consolidates concrete

A

Contractor’s guide to quality concrete construction
PG 178

31
Q

The vibrator make stiff concrete more fluid

A

Contractor’s guide to quality concrete construction
PG 178

32
Q

20 degree increase in temperature reduces setup tine by 50%

A

Contractor’s guide to quality concrete construction
PG 180

33
Q

Never pour on frozen ground, below 40 degrees considered cold weather

A

Contractor’s guide to quality concrete construction
PG 181

34
Q

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

A

Contractor’s guide to quality concrete construction
PG 183

35
Q

Curing controls the drying of concrete, curing starts immediately, helps with strength and durability

A

Contractor’s guide to quality concrete construction
PG 186

36
Q

Cause of plastic shrinkage cracks. rapid evaporations

A

Contractor’s guide to quality concrete construction
PG 196cu

37
Q

Curing cylinders at job site in box - 60-80 degrees

A

Contractor’s guide to quality concrete construction
PG 201

NASCLA (23 decks)

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