Increasing the amount of sand in a concrete usually decreases the amount of water needed to make the concrete workable. OAI True O B) False This non-destructive test method is typically used to isolate zones of poor-quality concrete prior to coring: OA Rebound hammer test O B) GPR O Penetration resistance O DI Pull-out test The density of a concrete column is 2380 kg/m^3 and the height of the column is 3.8 m. If the column is circular with a diameter of 250 mm, calculate the dead load of the column in kN. OA) 444 O B) 4.36 O9 4355 OD) 44.4

Increasing the amount of sand in a concrete usually decreases the amount of water needed to make the concrete workable. OAI True O B) False This non-destructive test method is typically used to isolate zones of poor-quality concrete prior to coring: OA Rebound hammer test O B) GPR O Penetration resistance O DI Pull-out test The density of a concrete column is 2380 kg/m^3 and the height of the column is 3.8 m. If the column is circular with a diameter of 250 mm, calculate the dead load of the column in kN. OA) 444 O B) 4.36 O9 4355 OD) 44.4

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 Concrete

Concrete is the fundamental material used in civil engineering such as building materials for building structures. Concrete is an aggregate mixture of cement, sand, and fine and coarse rock pieces. The cement acts as a binding material that holds the compositions together, sets, and hardens with time. Apart from cement, there are other different types of binding materials used, such as lime concrete, bitumen, asphalt, and so on.

Question

Increasing the amount of sand in a concrete usually decreases the amount of water
needed to make the concrete workable.
O A) True
O B) False
This non-destructive test method is typically used to isolate zones of poor-quality
concrete prior to coring:
OA Rebound hammer test
O B) GPR
OC) Penetration resistance
OD) Pull-out test
The density of a concrete column is 2380 kg/m^3 and the height of the column is
3.8 m. If the column is circular with a diameter of 250 mm, calculate the dead load of
the column in kN.
OA) 444
O B) 4.36
OC 4355
O D) 44.4
A concrete cylinder weighs 2096.6 when submerged in water and 3541.2 when
weighed in air. What is the density of this concrete cylinder?
OA) 2421 kg/m^3
O B) 2347 kg/m^3
OO 2258 kg/m^3
O D) 2451 kg/m^3

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Note:hand written solution should be avoided.