Question Identify the correct sequence of the concrete manufacturing process by rearranging the order of the process shown below: Finishing Placing (Pouring) Curing Mixing Maintenance Mix design (proportioning) Vibrating (consolidating) Transporting Match each of these shrinkage regions (from I to V) with the 5 shrinkage mechanisms in the bullets Shrinkage (%) 90% RH Water loss from larger capillary pores Decomposition of C-S-H 0 Region N 25 Region IN Region III 55% RH .50 10% RH Structural water from C-S-H Region IV Region 0% RH 105°C Absorbed water loss Water loss from smaller capillary pores 200°C 1 0 6.25 12.5 18.75 25 Weight Loss (%) .75 Question 2 Mention five different methods of concrete curing. What will happen if concrete is not cured? Draw a graph showing the typical relation between the compressive strength and age for continuously moist-cured concrete and concrete cured for 3 days only. Label all axes and curves. Question 3 a) Provide a brief definition of the different types of concrete's strength b) Define the relationship between compressive and tensile strength and provide an example c) What are the factors that affect concrete's compressive strength? Question 4 Briefly describe the fracture patterns of concrete cylinders during a compression test. (a) (b) (c) (d) (f) ☐☐ ☐ ☐
Question Identify the correct sequence of the concrete manufacturing process by rearranging the order of the process shown below: Finishing Placing (Pouring) Curing Mixing Maintenance Mix design (proportioning) Vibrating (consolidating) Transporting Match each of these shrinkage regions (from I to V) with the 5 shrinkage mechanisms in the bullets Shrinkage (%) 90% RH Water loss from larger capillary pores Decomposition of C-S-H 0 Region N 25 Region IN Region III 55% RH .50 10% RH Structural water from C-S-H Region IV Region 0% RH 105°C Absorbed water loss Water loss from smaller capillary pores 200°C 1 0 6.25 12.5 18.75 25 Weight Loss (%) .75 Question 2 Mention five different methods of concrete curing. What will happen if concrete is not cured? Draw a graph showing the typical relation between the compressive strength and age for continuously moist-cured concrete and concrete cured for 3 days only. Label all axes and curves. Question 3 a) Provide a brief definition of the different types of concrete's strength b) Define the relationship between compressive and tensile strength and provide an example c) What are the factors that affect concrete's compressive strength? Question 4 Briefly describe the fracture patterns of concrete cylinders during a compression test. (a) (b) (c) (d) (f) ☐☐ ☐ ☐
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question 1
Transcribed Image Text:Question
Identify the correct sequence of the concrete
manufacturing process by rearranging the order of
the process shown below:
Finishing
Placing (Pouring)
Curing
Mixing
Maintenance
Mix design (proportioning)
Vibrating (consolidating)
Transporting
Match each of these shrinkage regions (from I to V) with the 5
shrinkage mechanisms in the bullets
Shrinkage (%)
90% RH
Water loss from larger
capillary pores
Decomposition of C-S-H
0
Region N
25
Region IN
Region III
55% RH
.50
10% RH
Structural water from C-S-H
Region IV
Region
0% RH
105°C
Absorbed water loss
Water loss from smaller
capillary pores
200°C
1
0
6.25 12.5 18.75
25
Weight Loss (%)
.75
Question 2
Mention five different methods of concrete curing. What will happen if concrete is not cured? Draw a graph showing the
typical relation between the compressive strength and age for continuously moist-cured concrete and concrete cured for
3 days only. Label all axes and curves.
Question 3
a) Provide a brief definition of the different types of concrete's strength
b) Define the relationship between compressive and tensile strength and provide an example
c) What are the factors that affect concrete's compressive strength?
Question 4
Briefly describe the fracture patterns of concrete cylinders during a compression test.
(a)
(b)
(c)
(d)
(f)
☐☐ ☐ ☐
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