Pune University BE Civil Advanced Concrete Technology Question Papers

Pune University BE Civil Advanced Concrete Technology Question

Papers

B.E. (Civil) ADVANCED CONCRETE TECHNOLOGY (2008 Pattern)

(Elective – II) (Sem. – I)

Time :3 Hours]                                                                           [Max. Marks :100

Instructions to the candidates:-

1)          Answer three questions from each section in separate answer books.

2)          Neat diagrams must be drawn wherever necessary.

3)          Figures to the right indicate full marks.

4)          Electronic pocket calculator is allowed.

SECTION – I

QIA a) Enlist the basic ingradients of portland cement and also their ill effects if used in excess.                                                                                                                               [6]

b)        Explain the term grading of aggregate. Explain its effect on properties of concrete.                                                                                                                       [6]

c)        Write note on Hydration of cement.                                                                [6]

OR

Q2) Write short notes on :                                                                                      [RV each]

a)        Gel space ratio.

b)        Maturity concept.

c)        Bouges compounds.

d)        Crushing value test on aggregate.

Q3) a) Explain light weight aggregate concrete. State its uses.                                     [8]

b)   Write notes on :                                                                                                                                       [8]

i)             No fines concrete

ii)           Heavy concrete

 

Q4) a) What is Aerated concrete? How Aeration is obtained.                                       [8]

b) Write notes on :                                                                                                      [8]

i)             High Strength concrete

ii)           Bucket method of underwater concreting.

Q5) a) Enlist various non destructive methods of testing concrete. utility of each in brief.

b) Write note on pull out test.

OR

Q6) Write notes on :

a)        Stress wave propogation method.

b)        Ground penetration radar method.

c)        Core test.

SECTION- II

Q7) a) What is fibre reinforced concrete? Explain its historical development. [9]

b)        Write a note on Naturally occurring fibres including their types, merits

and demerits.                                                                                                       [9]

OR

Q8) a) Explain factors affecting properties of FRC.                                     [5]

b)        Write a note on mixing of FRC.                                                                      [5]

c)        Write a note on steel and glass fibres.                                                             [8]

Q9) a) Enlist different properties of hardened FRC. Explain any one. [7]

b) Explain the effect of volume, aspect ratio and orientation of fibres on FRC.       [9]

OR

QIO) a) Explain the behaviour of SFRC under compression, tension and flexure.  [3×3=9]

b) Write a short note on SIFCON with reference to definition, structure, properties and use.                                                                                                                       [7]

 

QII) a) Define ferrocement. Write in detail about applications of ferrocement. [8] b) Write note on materials used in ferrocement with respect to :                                         [8]

i)              cement mortar mix.

ii)           skeletal steel.

OR

Q12) a) Enlist various construction methods of ferrocement. Explain skeletal armature method with advantages and disadvantages.                                                                        [8]

b)        Explain construction of bridge (any type) using precast concrete elements.     [8]

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