Given the mix design for a 20-liter batch of concrete: 20-liter Batch Materials W (dry), kg W(wet), kg Water 4.40 3.99 Cement 8.15 8.15 Gravel 21.76 22.20 Sand 11.07 11.84 Answer the following : (round-off volumes in cu.m. up to 4 decimal places, round-off the rest to 2 decimal places). a) If the density of fresh concrete is 2260 kg/cu.m., what is the yield for the 20-liter batch? cu.m. b) If the density of fresh concrete is 2260 kg/cu.m., what is the yield for the 1 cu.m. batch? cu.m. c) What should be the adjusted water (for the dry weights) due to the yield and if the measured slump is 40 mm short of the target slump? kg d) What is the moisture content of gravel? e) What is the moisture content of sand ? %
Given the mix design for a 20-liter batch of concrete: 20-liter Batch Materials W (dry), kg W(wet), kg Water 4.40 3.99 Cement 8.15 8.15 Gravel 21.76 22.20 Sand 11.07 11.84 Answer the following : (round-off volumes in cu.m. up to 4 decimal places, round-off the rest to 2 decimal places). a) If the density of fresh concrete is 2260 kg/cu.m., what is the yield for the 20-liter batch? cu.m. b) If the density of fresh concrete is 2260 kg/cu.m., what is the yield for the 1 cu.m. batch? cu.m. c) What should be the adjusted water (for the dry weights) due to the yield and if the measured slump is 40 mm short of the target slump? kg d) What is the moisture content of gravel? e) What is the moisture content of sand ? %
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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![Given the mix design for a 20-liter batch of concrete:
20-liter Batch
Materials
W (dry), kg
W(wet), kg
Water
4.40
3.99
Cement
8.15
8.15
Gravel
21.76
22.20
Sand
11.07
11.84
Answer the following : (round-off volumes in cu.m. up to 4 decimal places, round-off the rest to 2 decimal places).
a) If the density of fresh concrete is 2260 kg/cu.m., what is the yield for the 20-liter batch?
cu.m.
b) If the density of fresh concrete is 2260 kg/cu.m., what is the yield for the 1 cu.m. batch?
cu.m.
c) What should be the adjusted water (for the dry weights) due to the yield and if the measured slump is 40 mm short of the target slump?
kg
d) What is the moisture content of gravel?
%
e) What is the moisture content of sand ?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0c9d5d10-595d-4cd7-9134-2a40ba56aa9c%2Fad054ccc-75c6-453b-88ec-d0b8c4be8c48%2Fiypzl3i_processed.png&w=3840&q=75)
Transcribed Image Text:Given the mix design for a 20-liter batch of concrete:
20-liter Batch
Materials
W (dry), kg
W(wet), kg
Water
4.40
3.99
Cement
8.15
8.15
Gravel
21.76
22.20
Sand
11.07
11.84
Answer the following : (round-off volumes in cu.m. up to 4 decimal places, round-off the rest to 2 decimal places).
a) If the density of fresh concrete is 2260 kg/cu.m., what is the yield for the 20-liter batch?
cu.m.
b) If the density of fresh concrete is 2260 kg/cu.m., what is the yield for the 1 cu.m. batch?
cu.m.
c) What should be the adjusted water (for the dry weights) due to the yield and if the measured slump is 40 mm short of the target slump?
kg
d) What is the moisture content of gravel?
%
e) What is the moisture content of sand ?
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