Finer grinding of cement
A). affects only the early development of strength
B). affects only the ultimate strength
C). both (a) and (b)
D). does not affect the strength
The temperature reinforcement in the vertical slab of a T-shaped R.C. retaining wall is
A). Not needed
B). Provided equally on inner and front faces
C). Provided more on inner face than on front face
D). Provided more on front face than on inner face
Due to circumferential action of the spiral in a spirally reinforced column
A). Capacity of column is decreased
B). Ductility of column reduces
C). Capacity of column is decreased but ductility of column increases
D). Both the capacity of column and ductility of column increase
If nominal shear stress tv exceeds the design shear strength of concrete xc, the nominal shear reinforcement as per IS : 456-1978 shall be provided for carrying a shear stress equal to
A). xv
B). xc
C). Tv + Tc
D).
Which of the following losses of prestress occurs only in pretensioning and not in post-tensioning ?
A). elastic shortening of concrete
B). shrinkage of concrete
C). creep of concrete
D). loss due to friction