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) — complete question paper · 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. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.

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