1. What component of concrete that has affect its strength largely? Explain. 2. If you have to choose, an expensive high quality concrete or a less expensive with low quality concrete? Explain. 3. To reduce corrosion on steel reinforcement, what you have to consider in the design? 4. A 300mm X 500mm concrete beam with a 25mm diameter reinforcing bar spaced at 50mm o.c will be constructed using a non-air entrained concrete. The design compressive strength at 28 days is 30 MPa. Design a concrete mix for the beam. The properties of the aggregates and cement to be used are given in the table below. Use a trial batch of 0.15 m3. Coarse aggregate 2.75 (SSD) Fine aggregate Cement 2.56 (SSD) 2.5% Specific Gravity Absorption Moisture content Unit weight rodded) FM 3.15 1.2% 2.5% 4.5% (dry 1750 kg/m³ 2.45
1. What component of concrete that has affect its strength largely? Explain. 2. If you have to choose, an expensive high quality concrete or a less expensive with low quality concrete? Explain. 3. To reduce corrosion on steel reinforcement, what you have to consider in the design? 4. A 300mm X 500mm concrete beam with a 25mm diameter reinforcing bar spaced at 50mm o.c will be constructed using a non-air entrained concrete. The design compressive strength at 28 days is 30 MPa. Design a concrete mix for the beam. The properties of the aggregates and cement to be used are given in the table below. Use a trial batch of 0.15 m3. Coarse aggregate 2.75 (SSD) Fine aggregate Cement 2.56 (SSD) 2.5% Specific Gravity Absorption Moisture content Unit weight rodded) FM 3.15 1.2% 2.5% 4.5% (dry 1750 kg/m³ 2.45
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
Transcribed Image Text:1. What component of concrete that has affect its strength largely?
Explain.
2. If you have to choose, an expensive high quality concrete or a
less expensive with low quality concrete? Explain.
3. To reduce corrosion on steel reinforcement, what you have to
consider in the design?
4. A 300mm X 500mm concrete beam with a 25mm diameter
reinforcing bar spaced at 50mm o.c will be constructed using a
non-air entrained concrete. The design compressive strength at
28 days is 30 MPa. Design a concrete mix for the beam. The
properties of the aggregates and cement to be used are given in
the table below. Use a trial batch of 0.15 m3.
Specific Gravity
Absorption
Moisture content
Coarse aggregate
2.75 (SSD)
1.2%
Fine aggregate Cement
2.56 (SSD)
3.15
2.5%
2.5%
4.5%
Unit weight (dry 1750 kg/m3
rodded)
FM
2.45
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 4 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Recommended textbooks for you
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Fundamentals of Structural Analysis
Civil Engineering
ISBN:
9780073398006
Author:
Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning
Publisher:
McGraw-Hill Education
Traffic and Highway Engineering
Civil Engineering
ISBN:
9781305156241
Author:
Garber, Nicholas J.
Publisher:
Cengage Learning