B.TechSemester 52023-24Concrete TechnologyKCE051

Concrete Technology (KCE051) - AKTU Question Paper 2023-24

B.Tech · Semester 5 · Free PDF Download

This is the official AKTU Concrete Technology Previous Year Question Paper for B.Tech Semester 5, academic session 2023-24. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech

Semester:Semester 5

Session:2023-24

University:AKTU / UPTU

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Questions Asked in 2023-24

Concrete Technology (KCE051) — extracted question text · 100 marks · 3 Hours

Section AAttempt all q u e s t i o n s i n b r i e f . 2 x 10 = 20

a
Define heat of hydration. 2 1
b
What is called clinker? 2 1
c
What is the application of accelerator in concrete? 2 2
d
What is pozzolana? 2 2
e
Explain curing of concrete. 2 3
f
What do you mean by shrinkage? 2 3
g
What is Abram’s law? 2 4
h
What is mean strength? 2 4 i. Discuss self-compacting concrete. 2 5 j. What do you understand by high strength concrete? 2 5

Section BAttempt any three o f t h e f o l l o w i n g : 10x3=30

a
Explain effect of impurities in the mixing water on concrete. 10 1
b
What is air-entrained concrete? Explain the fact ors affecting t he air entrainment in the concrete. 10 2
c
Describe the various steps in manufacturing of concrete in detail. 10 3
d
What do you mean by Rheology of fresh concrete? 10 4
e
Explain fibre reinforced concrete. Describe different uses of f ibre reinforced concrete. 10 5

Section CAttempt any one p a r t o f t h e f o l l o w i n g : 10x1=10

a
What is the Bogue’s compound of Portland cement? Explain in detail. 10 1
b
Explain the bulking and s oundness of aggregates. 10 1
a
What is fly ash? Give the a dvantages and disadvantages of fly ash. 10 2
b
Explain the effect of super plasticizer on the properties of fr esh and hardened concrete. 10 2
a
Define segregation. Explain the f actors affecting segregation o f concrete. 10 3
b
Define workability. What are the factors affecting the workabil ity of concrete? 10 3
a
Explain step by step IS method of mix proportioning. 10 4 Design a concrete mix for M20 grade of concrete using ACI commi ttee method with the following data: Grade Designation = M 20 Type of cement = O.P.C- 43 grade Max Nominal size of aggregate = 20 mm Design strength of concrete (at 28 days) = 30MPa Standard deviation= 4 MPa Dry rodded bulk density of C.A = 1600kg/𝑚 Fineness modulus of FA = 2.80 Slump = 50mm Sp. Gravity of Cement = 3.15 Sp. Gravity of CA = 2.70 Sp. Gravity of FA = 2.65 Water absorption of CA = 1% Water absorption of FA = 2% Assume an y other essential data
a
Define ready mix concrete. Explain the components of RMC pla nt in brief
b
Explain recycled aggregate c oncrete. Discuss various propert ies of recycled aggregate concrete

Question text is extracted from the official AKTU question paper PDF above. Check the original PDF for equations, diagrams and complete wording. Extracted: 2026-08-23.

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