An air-entrained concrete mix is required for a structure that is severely exposed to sulfate. Given: Required strength 35 MPa; slump 80 mm; Coarse aggregate: 19 mm nominal maximum size. The amount of water required for this mix and the corresponding air content respectively are Select one: O A. 190 Kg and 2% O B. 184 Kg and 6% O C. 184 Kg and 3.5% O D. 205 Kg and 2%
An air-entrained concrete mix is required for a structure that is severely exposed to sulfate. Given: Required strength 35 MPa; slump 80 mm; Coarse aggregate: 19 mm nominal maximum size. The amount of water required for this mix and the corresponding air content respectively are Select one: O A. 190 Kg and 2% O B. 184 Kg and 6% O C. 184 Kg and 3.5% O D. 205 Kg and 2%
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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![An air-entrained concrete mix is required for a structure that is severely exposed to sulfate. Given:
Required strength 35 MPa;
slump 80 mm;
Coarse aggregate: 19 mm nominal maximum size.
The amount of water required for this mix and the corresponding air content respectively are
Select one:
O A. 190 Kg and 2%
O B. 184 Kg and 6%
O C. 184 Kg and 3.5%
O D. 205 Kg and 2%](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdc2cc66a-d498-4e24-ae6a-43030d687a56%2Fba17565e-4759-4e4e-88f3-a3644b2f6a13%2Fyprkn_processed.jpeg&w=3840&q=75)
Transcribed Image Text:An air-entrained concrete mix is required for a structure that is severely exposed to sulfate. Given:
Required strength 35 MPa;
slump 80 mm;
Coarse aggregate: 19 mm nominal maximum size.
The amount of water required for this mix and the corresponding air content respectively are
Select one:
O A. 190 Kg and 2%
O B. 184 Kg and 6%
O C. 184 Kg and 3.5%
O D. 205 Kg and 2%
![To make sure that concrete has been adequately mixed:
Select one:
O A. Aggregate and cement shall be added before mixing water
O B. A good mixer shall be used.
O C. The time of mixing shall not exceed 3 minutes.
O D. Samples taken from different portions of a batch should have essentially the same strength, density, air content, and slump.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdc2cc66a-d498-4e24-ae6a-43030d687a56%2Fba17565e-4759-4e4e-88f3-a3644b2f6a13%2Fsrrxchr_processed.jpeg&w=3840&q=75)
Transcribed Image Text:To make sure that concrete has been adequately mixed:
Select one:
O A. Aggregate and cement shall be added before mixing water
O B. A good mixer shall be used.
O C. The time of mixing shall not exceed 3 minutes.
O D. Samples taken from different portions of a batch should have essentially the same strength, density, air content, and slump.
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