Water Absorption Calculations Table 1 shows the proportions of concrete making materials required to produce a batch of concrete meeting a standard strength grade of 40 MPa. Using the data given in Table 1, determine: • Mass of water in coarse aggregate (round to the whole number).
Water Absorption Calculations Table 1 shows the proportions of concrete making materials required to produce a batch of concrete meeting a standard strength grade of 40 MPa. Using the data given in Table 1, determine: • Mass of water in coarse aggregate (round to the whole number).
Chapter2: Loads On Structures
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Transcribed Image Text:Water Absorption Calculations
Table 1 shows the proportions of concrete making materials required to produce a batch of concrete meeting
a standard strength grade of 40 MPa. Using the data given in Table 1, determine:
• Mass of water in coarse aggregate (round to the whole number).
Table 1: Proportions of concrete making materials required to produce batch of concrete
Absorption
capacity (%)
Raw
Material density
(kg/m)
Required
Mass (kg)
Moisture
content (%)
Materials
Portland cement
3150
450
Water
1000
170
Admixture
1100
4
2.00
750 (as supplied)
1000 (as supplied)
1.0
Fine aggregate
Coarse aggregate
2600
2700
0.6
1.50
Select one:
O a. 8 kg
O b. 7 kg
O c. 6 kg
O d. 5 kg
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