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21 Cards in this Set
- Front
- Back
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The first thing to do after concrete is poured |
Straight Edge |
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Cylinder test for typical concert should be tested for compressive strength at |
3, 7 & 28 days of curing |
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Cement is made up of |
Cement, water, sand, and aggregate |
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For normal concrete, type of Cement to use is |
Type 1 |
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For concrete exposed to salt and acids, type of Cement to use is |
type 2 |
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High early strength concrete, type of Cement to use is |
type 3 |
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For large massive pours, type of Cement to use is |
type 4 |
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For areas with high sulfate, type of concrete to use is |
type 5 |
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A cubic yard of concrete weighs about |
2 tons |
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a sack of Cement weighs |
94lbs |
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Water to mix concrete should be suitable for |
drinking |
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Adding water to workable concrete will make it |
weak |
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A concrete slump test will show |
How Fluid, How soft, and its workability |
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Admixture is anything added to concrete other than |
water, aggregate, or Portland Cement |
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to increase the workability without sacrificing strength of concrete add |
admixture |
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Max distance to drop concrete without using a drop chute |
5ft |
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Concrete normally reaches its compressive strength in |
28 days |
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Best tempature range for pouring concrete is between |
50 to 70 degrees |
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Outward pressure concrete creates against for is |
hydrostatic pressure |
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concrete should typically be discarded after |
90 mins |
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concrete typically should weigh between |
150 - 160 lbs per CF |
