What sieve size is the dividing line between fine aggregates (sand) and coarseaggregates (gravel) used in concrete?O A) 25 mmO B) 12.5 mmOO 14 mmD) 5 mmConcrete is required for an exterior column exposed to severe freeze thaw cycles.The water to cementitious materials ratio is 0.37. If 120.1 kg of water is to be addedto the mix, what is the batch weight of the cement?O A) 427.1 kgO B) 324.6 kgOC) 335.0 kgO D) 320.0 kgIn Lab 6, a pycnometer was filled with water and then sand to determine thevalue of the fine aggregate:O A) Relative DensityO B) Bulk DensityOO AbsorptionO D) Moisture ContentIf you wanted to design a concrete mix using the minimum allowed water/cementratio, determine the mass of cement required if 150 kg of water is used in the mix:O A) 600 kgO B) 400 kgOO 500 kgOD) 300 kgO O

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What sieve size is the dividing line between fine aggregates (sand) and coarse aggregates (gravel) used in concrete? ON 25 mm O B) 12.5 mm O0 14 mm OD) 5 mm

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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Concept explainers

Types of Cement

Cement is a fine mixture of limestone, chalk, or marl and clay which when mixed with water, becomes compacted due to the formation of strong molecular bonds. Due to hydration, cement turns into a hard mass when left for a sufficient amount of time upon mixing with water. The water turns the cement compounds into gel-like submicroscopic particles having higher surface areas. It is due to the hydration properties of cement, they are often known as hydraulic cement. For instance, Portland cement is a popular example in this category.

Question

What sieve size is the dividing line between fine aggregates (sand) and coarse
aggregates (gravel) used in concrete?
O A) 25 mm
O B) 12.5 mm
OO 14 mm
D) 5 mm
Concrete is required for an exterior column exposed to severe freeze thaw cycles.
The water to cementitious materials ratio is 0.37. If 120.1 kg of water is to be added
to the mix, what is the batch weight of the cement?
O A) 427.1 kg
O B) 324.6 kg
OC) 335.0 kg
O D) 320.0 kg
In Lab 6, a pycnometer was filled with water and then sand to determine the
value of the fine aggregate:
O A) Relative Density
O B) Bulk Density
OO Absorption
O D) Moisture Content
If you wanted to design a concrete mix using the minimum allowed water/cement
ratio, determine the mass of cement required if 150 kg of water is used in the mix:
O A) 600 kg
O B) 400 kg
OO 500 kg
OD) 300 kg
O O

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