Made with cement concrete
Thick and reinforced
Thin and heavily reinforced
Thick and heavily reinforced
D. Thick and heavily reinforced
Water cement ratio
Workability
Grading of aggregate
Fineness modulus
Crushing strength
Impact value
Abrasion resistance
Water absorption
Extremely low
Very low
Low
High
The concrete gains strength due to hydration of cement
The concrete does not set at freezing point
The strength of concrete increases with its age
All the above
5 %
10 %
15 %
20 %
10 %
12.5 %
15 %
18.5 %
Chemically inert
Sufficiently strong
Hard and durable
All the above
The free water is the amount of water added while mixing and the amount of water held on the surface of the aggregates prior to mixing
The total water is the free water and the amount actually absorbed by the aggregates
Neither (a) nor (b)
Both (a) and (b)
0.207 l
0.25 l
0.293 l
0.333 l
L-shaped wall
T-shaped wall
Counterfort type
All of the above
Colorcrete
Silvicrete
Snowcem
All the above
Moist aggregates
Very dry aggregates
Dry aggregates
Saturated surface dry aggregate
2
4
6
8
0.367 xu
0.416 xu
0.446 xu
0.573 xu
Full capacity of the ware house
Pressure exertion of the bags of upper layers
Pressure compaction of the bags on lower layers
Packing the ware house
Sand stone
Slate
Lime stone
Graphite
Has strength less than 10% to 15%
Has more resistance to weathering
Is more plastic and workable
Is free from segregation and bleeding
Hydrates rapidly
Generates less heat of hydration
Hardens rapidly
Provides less ultimate strength to cement
Space between the exterior walls of a warehouse and bag piles should be 30 cm
Cement bags should preferably be piled on wooden planks
Width and height of the pile should not exceed 3 m and 2.70 m respectively
None of these
Compressive stress
Shear stress
Bond stress
Tensile stress
5 % less
10 % less
5 % more
10 % more
Is always less than 1
Is always greater than 1
Can be more than 1
Can be less than 1
Made with cement concrete
Thick and reinforced
Thin and heavily reinforced
Thick and heavily reinforced
Reduction in permeability
Loss of heat of hydration
Reduction in bleeding
All the above
3.0 m and 1.5 m
1.5 m and 3.0 m
3.0 m and 3.0 m
1.5 m and 1.5 m
Lime stone
Chalk
Laterite
None of these
40 mm
50 mm
60 mm
70 mm
1000°C
1200°C
1400°C
1600°C
5% of the total aggregates for low workability with a coarse grading
10% of the total aggregates for low workability with a fine grading
20% of the total aggregates for a mix having high workability with fine grading
All the above
Cement and standard sand mortar are used in the ratio of 1 : 3
Water is added at the rate of (P/4) + 3.0 percentage of water where P is the percentage of water for standard consistency
A cube mould of 10 cm × 10 cm × 10 cm is used
The prepared moulds are kept in a atmosphere of 50% relative humidity