Cylinders which have been subjected only to field curing conditions prior to testingmay be used to assess the quality of the concrete as delivered.OA) TrueO B) FalseThe specified compressive strength of a concrete mixture is 30 MPa. If C-2 is chosenas the suitable exposure class and no statistical data on previous mixtures areavailable, which one of the following would best estimate the required compressivestrength (in MPa) based on the CSA Standard?O A) 40.5O B) 36.5O) 38.5O D) 32Which one of the following methods may be used to increase the workability of freshconcrete?OA All of the aboveB) Adding super plasticizersC) Using well-graded aggregatesO D) Using rounded aggregatesDetermine the exposure class that would be used for concrete in a very severeenvironment like that of the Confederation Bridge in Prince Edward Island (PEI) withhigh durability performance expectations.O Al S-1O B) C-1OD) F-1O

Cylinders which have been subjected only to field curing conditions prior to testing may be used to assess the quality of the concrete as delivered. OA) True B) False The specified compressive strength of a concrete mixture is 30 MPa. If C-2 is chosen

Cylinders which have been subjected only to field curing conditions prior to testing may be used to assess the quality of the concrete as delivered. OA) True B) False The specified compressive strength of a concrete mixture is 30 MPa. If C-2 is chosen

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

Cylinders which have been subjected only to field curing conditions prior to testing
may be used to assess the quality of the concrete as delivered.
OA) True
O B) False
The specified compressive strength of a concrete mixture is 30 MPa. If C-2 is chosen
as the suitable exposure class and no statistical data on previous mixtures are
available, which one of the following would best estimate the required compressive
strength (in MPa) based on the CSA Standard?
O A) 40.5
O B) 36.5
O) 38.5
O D) 32
Which one of the following methods may be used to increase the workability of fresh
concrete?
OA All of the above
B) Adding super plasticizers
C) Using well-graded aggregates
O D) Using rounded aggregates
Determine the exposure class that would be used for concrete in a very severe
environment like that of the Confederation Bridge in Prince Edward Island (PEI) with
high durability performance expectations.
O Al S-1
O B) C-1
OD) F-1
O

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