Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 3rd Sem Old 130605 Concrete Technology Previous Question Paper
1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?III (OLD) EXAMINATION ? WINTER 2018
Subject Code:130605 Date:10/12/2018
Subject Name:Concrete Technology
Time:10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) List out the raw materials required for making cement.
Explain any one process of manufacturing of cement in
detail.
07
(b) Write a short note on quality of mixing water to be used for
various processes of concreting.
07
Q.2 (a) Give the detailed classification of the aggregates. 07
(b) Define Standard Consistency of Cement. Explain the test
procedure to find the same and also state its importance.
07
OR
(b) Describe any two test methods to determine the physical
strength of aggregates in detail
07
Q.3 (a) Enlist various types of admixtures and their relevant
application.
07
(b) Define Workability of concrete. Explain the various factors
that influence workability
07
OR
Q.3 (a) Explain in detail the need for curing of concrete structures.
Explain in brief the various methods of curing.
07
(b)
Write down the various steps of Concrete mix design as per
IS method
07
Q.4 (a) In detail explain various factors that affect the hardened
strength of concrete.
07
(b) Specify the difference between destructive and non-
destructive testing. State the principle and limitations of
Rebound Hammer test, Ultra sonic pulse velocity test.
07
OR
Q.4 (a) Explain various Laboratory and Physical tests conducted on
cement. Explain the test procedure to determine the
compressive strength of cement
07
Q.4 (b) Describe the sizes of the different moulds used for
performing various tests on hardened concrete. Compare
concrete cube strength & cylinder strength.
07
Q.5 (a) Explain the importance of compaction of the freshly placed
concrete. Enlist different types of vibrators used for
compaction.
07
(b) Describe in detail about Mass concrete and Underwater
concreting technique.
07
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1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?III (OLD) EXAMINATION ? WINTER 2018
Subject Code:130605 Date:10/12/2018
Subject Name:Concrete Technology
Time:10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) List out the raw materials required for making cement.
Explain any one process of manufacturing of cement in
detail.
07
(b) Write a short note on quality of mixing water to be used for
various processes of concreting.
07
Q.2 (a) Give the detailed classification of the aggregates. 07
(b) Define Standard Consistency of Cement. Explain the test
procedure to find the same and also state its importance.
07
OR
(b) Describe any two test methods to determine the physical
strength of aggregates in detail
07
Q.3 (a) Enlist various types of admixtures and their relevant
application.
07
(b) Define Workability of concrete. Explain the various factors
that influence workability
07
OR
Q.3 (a) Explain in detail the need for curing of concrete structures.
Explain in brief the various methods of curing.
07
(b)
Write down the various steps of Concrete mix design as per
IS method
07
Q.4 (a) In detail explain various factors that affect the hardened
strength of concrete.
07
(b) Specify the difference between destructive and non-
destructive testing. State the principle and limitations of
Rebound Hammer test, Ultra sonic pulse velocity test.
07
OR
Q.4 (a) Explain various Laboratory and Physical tests conducted on
cement. Explain the test procedure to determine the
compressive strength of cement
07
Q.4 (b) Describe the sizes of the different moulds used for
performing various tests on hardened concrete. Compare
concrete cube strength & cylinder strength.
07
Q.5 (a) Explain the importance of compaction of the freshly placed
concrete. Enlist different types of vibrators used for
compaction.
07
(b) Describe in detail about Mass concrete and Underwater
concreting technique.
07
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2
OR
Q.5 (a) Write short notes on the following ( any four)
I. Fly-ash as an admixture
II. Alkali ? aggregate reaction
III. Causes of cracks in concrete structures
IV. Fibre reinforced concrete
V. Factors affecting the durability of concrete
VI. Grading of aggregates
VII. Segregation and Bleeding
VIII. Moisture conditions of aggregates
14
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This post was last modified on 20 February 2020