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EndsemNov 20252019 patternSE Civil

Concrete Technology SPPU Endsem Question Paper Nov 2025

All 8 questions from this SPPU endsem paper, as printed. Read them here or open the PDF.

Open the PDFMost repeated Concrete Technology questions
Subject code
201010
Pattern
2019 pattern
Exam
Endsem
Session
Nov 2025
Max. marks
70
Time
2½ Hours
Semester
IV
Paper code
[6582]-3

Printed for: S.E. (Civil Engineering)

Instructions to the candidates

  1. Solve Q.1 or Q.2, Q.3 or Q.4, Q.5 or Q.6, Q.7or Q.8.
  2. Neat diagrams must be drawn wherever necessary.
  3. Figures to the right indicate full marks.
  4. Use of non-programmable calculator is allowed.
  5. If necessary, assume suitable data and indicate clearly.

Questions

  1. Q1

    1. a)

      Explain importance of abrasion testing also explain abrasion testing.

      [6]
    2. b)

      Explain rebound hammer test with its limitations.

      Also asked:May 2025

      [6]
    3. c)

      Explain the relationship between compressive strength and tensilestrength of concrete.

      Also asked:May 2025

      [6]

  2. Q2

    1. a)

      State the various types of non-destructive tests carried on hardened concrete. Explain ultrasonic pulse velocity test with its limitations.

      Also asked:May 2025

      [6]
    2. b)

      Explain the compressive strength of concrete. How it is determined in laboratory

      Also asked:May 2025

      [6]
    3. c)

      Explain the stress-strain relationship of concrete with neat sketch.

      Also asked:May 2025

      [6]

  3. Q3

    1. a)

      Define concrete mix design. Enlist objectives in mix design.

      Also asked:May 2025

      [6]
    2. b)

      Explain DOE method of concrete mix design.

      Also asked:May 2025

      [6]
    3. c)

      What do you mean by : i) Mean strength ii) Variance iii) Standard deviation iv) Coefficient of variation

      Also asked:May 2025

      [6]

  4. Q4

    1. a)

      Using Indian Standard recommended guidelines, design a concrete mixfor a reinforced concrete structure to be subjected to the mild exposure conditions for the following requirements: A) Stipulations for proportioning i) Grade designation: M30 ii) Standard deviation, s = 5 iii) Type of cement: OPC 53 grade conforming to IS 8112 iv) Workability : 75 mm (slump) v) Degree of supervision: Good vi) Exposure condition: Moderate vii) Type of aggregate: Angular coarse 20 mm aggregate, viii) Minimum and maximum cement content 300 kg/m3and 450 kg/m 3 respectively B) Test data for materials i) Specific gravity of cement: 3.15 ii) Specific gravity of: (I) Coarse aggregate - 2.74 (II) Fine aggregates - 2.74 iii) Water absorption: (I) Coarse aggregates - 0.5 % (II) Fine aggregates - 1.00 % iv) Free surface moisture : (I) Coarse aggregates - Nil (absorbed moisturealso nil) (II) Fine aggregates - Nil v) Sieve analysis (I) Coarse aggregate : IS Analysis of Percentage of different Remarks Sieve coarse fractions sizes in aggregate mm fraction I II I II Combined (60%) (40%) (100%) Confirming of table 2 20 100 100 60 40 100 of IS 383 10 0 71.2 0 28.5 28.5 4.75 9.40 3.7 3.7 2.36 0 (II) Fine aggreatate : Conforming to grading zone I (III) Design considerations : Table 1: From IS 10262: Maximum water content per cubic meter ofconcrete : Sr. Nominal Maximum Size of Maximum water No. aggregate in mm content in kg 1 10 208 2 20 186 3 30 165 Table 2: From IS 10262; Volume of Coarse Aggregate per UnitVolume of Total Aggregate: Sr.No Nominal Volume of coarse aggregate per unit volume Maximum size of of total aggregate for differentzone of fine aggregate in mm aggregate Zone I Zone II Zone III Zone IV 1 10 0.50 0.48 0.46 0.44 2 20 0.66 0.64 0.62 0.60 3 30 0.75 0.73 0.71 0.69 Table 3: From IS 456, Different Exposure conditions for reinforcedconcrete Exposure Minimum cement Maximum Minimum content (kg/m 3 ) water cement grade of ratio concrete Mild 300 0.55 M20 Moderate 300 0.50 M25 Severe 320 0.45 M30 Very Severe 340 0.45 M35 Extreme 340 0.40 M40

      Also asked:May 2025

      [13]
    2. b)

      Enlist the factors influencing concrete mix design and explain in detail.

      Also asked:May 2025

      [5]

  5. Q5

    1. a)

      Describe the cold and hot weather concreting.

      Also asked:May 2025

      [6]
    2. b)

      Discuss the self-compacting concrete (SCC) with its advantages.

      [6]
    3. c)

      Describe the types of vibrators used for compaction of concrete.

      Also asked:May 2025

      [6]

  6. Q6

    1. a)

      Write short note on : i) Roller compacted concrete ii) Under water concreting iii) Ready mix concrete

      [12]
    2. b)

      Explain the ferrocement technology with its applications.

      Also asked:May 2025

      [6]

  7. Q7

    1. a)

      Define durability of concrete. Explain its significance and discuss thefactors affecting the durability of concrete.

      [6]
    2. b)

      What do you mean by retrofitting of concrete and explain use of fiber reinforced polymer concrete for retrofitting.

      Also asked:May 2025

      [5]
    3. c)

      Write short note on Carbonation of concrete.

      [5]

  8. Q8

    1. a)

      Write short note on : i) Sulphate attack on concrete ii) Chloride attack on concrete

      Also asked:May 2025

      [6]
    2. b)

      Explain in detail corrosion monitoring techniques of reinforcement andpreventive measures against corrosion.

      Also asked:May 2025

      [5]
    3. c)

      Define the term permeability of concrete. What measures should be taken to reduce permeability of concrete? 

      [5]