Breadth of excavation = 0.6 m Height of excavation = 0.65 + 0.25 + 0.05 = 0.95 m Volume of excavation = 0.6 ××0.6 ×× 0.95 = 0.342 m3 Volume of gravel = 0.6 ××0.6 ×× 0.05 = 0.018 m3 Volume of concrete = Volume of footing +Volume of column Volume of footing = ( 0.6 ×× 0.6 ××0.25) = 0.09 m3 Volume of column = ( 0.3 ×× 0.3 ××0.65) = 0.0585 m3 Volume of concrete = 0.09 + 0.0585 = 0.1485 m3 Volume of Backfill = 0.342 - (0.1485 +0.018) = 0.1755 m3 Based on the previously obtained value for the total volume of concrete for the column footing, how many bags of cement is required if Class AA concrete is preferred? Use method 1 in estimating the proportions of concrete components.
Breadth of excavation = 0.6 m
Height of excavation = 0.65 + 0.25 + 0.05 = 0.95 m
Volume of excavation = 0.6 ××0.6 ×× 0.95
= 0.342 m3
- Volume of gravel = 0.6 ××0.6 ×× 0.05
= 0.018 m3
- Volume of concrete = Volume of footing +Volume of column
Volume of footing = ( 0.6 ×× 0.6 ××0.25)
= 0.09 m3
Volume of column = ( 0.3 ×× 0.3 ××0.65)
= 0.0585 m3
Volume of concrete = 0.09 + 0.0585 = 0.1485 m3
Volume of Backfill = 0.342 - (0.1485 +0.018)
= 0.1755 m3
Based on the previously obtained value for the total volume of concrete for the column footing, how many bags of cement is required if Class AA concrete is preferred? Use method 1 in estimating the proportions of concrete components.
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