1. The water-cement ratio is important because it influences all of the desirable qualities ofconcrete:a. Referring to the Figure, which portion of water is used to calculate the water-cementratio?PermeablevoidMoistureImpermeablevoidsSolid(a)(b)(c)(d)FIGURE 5.9 Volds and molsture absorption of aggregates: (a) bone dry, (b) alr dry,(c) saturated surface-dry (SSD), and (d) moist.b. What is the typical water-cement ratio for normal strength concrete?c. What is the minimum water-cement ratio for hydration only?d. Why is the extra water necessary?e. Briefly describe how super high strength concrete (fe = 15 ksi) can be made?

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a. Referring to the Figure, which portion of water is used to calculate the water-cement ratio? Permeable void Moisture -Impermeable (a) (b) (c) (d) FIGURE 5.9 Volds and moisture absorption of aggregates: (a) bone dry. (b) air dry, (c) saturated surface-dry (SSD), and (d) moist. b. What is the typical water-cement ratio for normal strength concrete? c. What is the minimum water-cement ratio for hydration only? d. Why is the extra water necessary?

a. Referring to the Figure, which portion of water is used to calculate the water-cement ratio? Permeable void Moisture -Impermeable (a) (b) (c) (d) FIGURE 5.9 Volds and moisture absorption of aggregates: (a) bone dry. (b) air dry, (c) saturated surface-dry (SSD), and (d) moist. b. What is the typical water-cement ratio for normal strength concrete? c. What is the minimum water-cement ratio for hydration only? d. Why is the extra water necessary?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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1. The water-cement ratio is important because it influences all of the desirable qualities of
concrete:
a. Referring to the Figure, which portion of water is used to calculate the water-cement
ratio?
Permeable
void
Moisture
Impermeable
voids
Solid
(a)
(b)
(c)
(d)
FIGURE 5.9 Volds and molsture absorption of aggregates: (a) bone dry, (b) alr dry,
(c) saturated surface-dry (SSD), and (d) moist.
b. What is the typical water-cement ratio for normal strength concrete?
c. What is the minimum water-cement ratio for hydration only?
d. Why is the extra water necessary?
e. Briefly describe how super high strength concrete (fe = 15 ksi) can be made?

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