Structural Analysis
Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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What is the minimum strength that concrete must reach prior to freezing so that the
overall strength gain is not affected?
OA 5.0 MPa
O B) 2.5 MPa
O0 4.5 MPa
OD) 3.5 MPa
When testing for organic impurities in Lab 4, which colour number was deemed to be
the limit for acceptable organics in the fine aggregate.
ON 1
O B) 2
O D) 3
Concrete is required for the construction of an agricultural dairy barn floor slab in
Central Alberta. The floor slab will be exposed to freeze/thaw conditions. Which of
the following exposure classes best describes the environmental conditions that the
concrete will be exposed to?
O Al A-4
O B) S-2
O D) A-2
Slow setting may be caused by:
O A Prolonged cold weather when protection is not provided to keep the concrete
warm
O B) Not having enough fly ash in the concrete
OC) Cold as-delivered concrete placed during hot weather
OD) Not enough water in the concrete to fully hydrate the cement
< O O
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Transcribed Image Text:What is the minimum strength that concrete must reach prior to freezing so that the overall strength gain is not affected? OA 5.0 MPa O B) 2.5 MPa O0 4.5 MPa OD) 3.5 MPa When testing for organic impurities in Lab 4, which colour number was deemed to be the limit for acceptable organics in the fine aggregate. ON 1 O B) 2 O D) 3 Concrete is required for the construction of an agricultural dairy barn floor slab in Central Alberta. The floor slab will be exposed to freeze/thaw conditions. Which of the following exposure classes best describes the environmental conditions that the concrete will be exposed to? O Al A-4 O B) S-2 O D) A-2 Slow setting may be caused by: O A Prolonged cold weather when protection is not provided to keep the concrete warm O B) Not having enough fly ash in the concrete OC) Cold as-delivered concrete placed during hot weather OD) Not enough water in the concrete to fully hydrate the cement < O O
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