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12 Cards in this Set
- Front
- Back
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The pressure method of determining air content can be used on concrete containing ....... aggregate |
Relatively dense |
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The pressure method of determining air content cannot be used on concrete containing the following types of aggregate:....... |
Lightweight, aggregate of high porosity, air-cooled blast furnace slag |
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What is the minimum allowable capacity of the measuring bowl used in this test method |
6L |
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What is the specified size of the mallet required for this test method when the measuring bowl has a capacity of 14L or less? |
1.25+-0.5lb |
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The sample of concrete used for this test is to be obtained in accordance with what ASTM practice? |
C172/C172M |
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The maximum size aggregate allowed for this test method is ... |
2in |
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If the concrete contains aggregate larger than the maximum allowed for this test, the sample must be .... |
Wet sieved over 1-1/2 in sieve |
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After rodding each layer what should be done to the measure before adding another layer of concrete |
Tap the sides of the measure smartly 10-15 times with the mallet |
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What tools may be used to strike off the top surface of the concrete following consolidation of the final layer |
A strike off bar, a metal glass, or acrylic plate |
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After consolidation of the concrete, strike off the top surface by .....the ..... ...... ..... Across the top flange or rim of the measuring bowl with a sawing motion until the bowl is just level full |
Sliding, strike off bar |
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A small quantity of ..... ..... May be added to correct a deficiency. If the measure contains greater excess, remove a ..... ...... Of.....with a trowel or scoop before the measure is struck off. |
Representative concrete, representative portion concrete |
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For the type A and B meters thoroughly clean the .....or ..... Of the bowl and the covers assembly so that when the cover is clamped into place a ...... ....... Will be obtained |
Flange, rims, pressure tight seal |
