Gujarat Technological UniversitySummer 2026 examination

GTU BE03006021 Concrete Technology Summer 2026 Question Paper & PDF

B.E. · Civil Engineering · Semester 3 · Subject code BE03006021
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Total
70 marks
To pass
23 marks (33%)
Duration
2.5 Hours 2:30 PM – 5:00 PM
Questions
5 with internal choice
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Q.1

14 Marks
(a)
3 marks
Enlist factors affecting permeability and explain any two in brief.
(b)
4 marks
Define durability and explain in short impact of W/C ratio on durability.
(c)
7 marks

Describe the wet process for the manufacturing of portland cement with the help of a neat flow chart.

Q.2

14 Marks
(a)
3 marks
Explain field test carried out on cement.
(b)
4 marks
Explain aggregate impact value test.
(c)
7 marks
Define the term Bogue's Compound and explain their properties.
(c)
7 marks
Explain laboratory procedures to find flakiness and elongation index of aggregate.

Q.3

14 Marks
(a)
3 marks

Define workability of concrete and explain effect of w/c ratio on strength and workability of concrete.

(b)
4 marks

Explain the phenomena of Segregation and Bleeding in fresh concrete. Discuss the negative effects of both on the final strength and durability of hardened concrete.

(c)
7 marks
Enlist the various stages of manufacturing of concrete and explain any two in detail.
(a)
3 marks
Explain in brief about any three types of Curing methods for concrete.
(b)
4 marks
Explain how shape and size of aggregate affects workability of concrete.
(c)
7 marks

Enlist the test carried out to measure Workability of Fresh Concrete and explain compaction factor test in detail.

Q.4

14 Marks
(a)
3 marks

Define creep in concrete and explain any two factors that influence the magnitude of creep.

(b)
4 marks
Explain any two factors affecting strength test results of concrete.
(c)
7 marks
Explain compression test of concrete in detail.
(a)
3 marks
Enlist factor affecting shrinkage and explain any one.
(b)
4 marks

Classify different types of shrinkage and differentiate between drying shrinkage and plastic shrinkage in concrete.

(c)
7 marks
Explain flexural strength test of concrete in detail.

Q.5

14 Marks
(a)
3 marks
Explain any three-factor affecting pulse velocity measurement.
(b)
4 marks
Enlist tests carried out on Self compacted concrete and explain any one.
(c)
7 marks
List factors influencing the design of concrete mix and explain any three in brief.
(a)
3 marks
Enlist applications of guniting.
(b)
4 marks
Explain rebound hammer test.
(c)
7 marks

Design a concrete mix for M25 grade of concrete for following data. (Give quantities in kg/m³) Cement= OPC 43 grade, Specific gravity of cement =3.15, Air content =1 %, Maximum size aggregate 20 mm, Slump = 75 mm, Maximum cement content is 450 kg/m³, S=4, X=5.5, Take W/C =0.5, Fine aggregate confirming to Zone -2, Volume of coarse aggregate per unit volume of total aggregate = 0.62. Specific Gravity of fine and coarse aggregate is 2.74. Need not required to apply any corrections like water absorption and free surface moisture. Consider water content [for 50 mm slump] = 186 kg/m³.

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About this paper

Official Gujarat Technological University (GTU) examination paper for Concrete Technology (Summer 2026, B.E. · Civil Engineering, Sem 3). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.

Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.

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