50- Vibration compasted Hand compacted Compressive Strength (28 days) MPa 15 0.6 Waterlcement Ratio 03 04 0.5 0.7 Optimum Conditions Wet Mix Dry Mix Number of Voids Total level of voids Voids due to evaporation of lubricating water Air entrainment Using mechanical vibration, 0.3 04 0.5 06 0.7 Select one or more: а. Increase air entrainment V b. Reduces the amount of water/ cement ratio from 0.47 to 0.41, V c. Increase the compressive strength of the cement O d. Reduce the total level of voids
50- Vibration compasted Hand compacted Compressive Strength (28 days) MPa 15 0.6 Waterlcement Ratio 03 04 0.5 0.7 Optimum Conditions Wet Mix Dry Mix Number of Voids Total level of voids Voids due to evaporation of lubricating water Air entrainment Using mechanical vibration, 0.3 04 0.5 06 0.7 Select one or more: а. Increase air entrainment V b. Reduces the amount of water/ cement ratio from 0.47 to 0.41, V c. Increase the compressive strength of the cement O d. Reduce the total level of voids
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question

Transcribed Image Text:50-
Vibration
compasted
Hand
compacted
Compressive
Strength
(28 days)
MPa
15
0.6
Waterlcement Ratio
03
04
0.5
0.7
Optimum
Conditions
Wet Mix
Dry Mix
Number
of Voids
Total level of voids
Voids due to
evaporation of
lubricating water
Air entrainment
Using mechanical vibration,
0.3
04
0.5
06
0.7
Select one or more:
а.
Increase air entrainment
V b. Reduces the amount of water/ cement ratio from 0.47 to 0.41,
V c.
Increase the compressive strength of the cement
O d. Reduce the total level of voids
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