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Concrete Technology
Tough Concrete Technology
Quiz 1
Solution
Q.1.
Main component in this concrete is _______
a) Cement
b) Sulphur
c) Sulphur and aggregates
d) Aggregates
Q.2.
What is the compressive strength of this concrete?
a) 60-115 MPa
b) 10-16 MPa
c) 35-50 GPa
d) 500 GPa
Q.3.
What is the bending strength of this concrete?
a) 60-115 MPa
b) 10-16 MPa
c) 35-50 GPa
d) 500 GPa
Q.4.
What is the value of modulus of elasticity?
a) 60-115 MPa
b) 10-16 MPa
c) 35-50 GPa
d) 500 GPa
Q.5.
What is the range of contraction for this concrete in mm/m?
a) .5-1
b) .6
c) <1
d) >1
Q.6.
What is the linear coefficient of thermal expansibility for this concrete in 10-6/K?
a) 8-12
b) 8-10
c) 10-15
d) 12-15
Q.7.
What is the density for this concrete in kg/m3?
a) 2400
b) 2200
c) 2000
d) 1800
Q.8.
_______ % is the range for porosity of this concrete.
a) 1-4
b) 5
c) 0-1
d) 9-15
Q.9.
_______ % is the range for absorptivity of this concrete.
a) 1-4
b) 5
c) 0-1
d) 9-15
Q.10.
Diameter of Round Steel Fiber lies in the range of _______ mm.
a) .3-.5
b) .25-.75
c) .155-.41
d) .25-.90
Q.11.
What is the thickness of the steel fiber after silting in mm?
a) .3-.5
b) .25
c) .155-.41
d) .25-.90
Q.12.
What is the thickness of the flat sheet fibers after silting in mm?
a) .3-.5
b) .25
c) .15-.41
d) .25-.90
Q.13.
What is the width of the flat sheet fibers after silting in mm?
a) .3-.5
b) .25
c) .15-.41
d) .25-.90
Q.14.
Polypropylene fibers is hydrophobic in nature.
a) True
b) False
Q.15.
Glass fiber is made up from _______ individual filaments.
a) 100-200
b) 200-400
c) 500
d) >500
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