For preparing ordinary concrete, the quantity of water used, is
Vicat apparatus is used for
Water cement ratio is generally expressed in volume of water required per
Sand requiring a high water cement ratio, belongs to
Pick up the correct statement from the following:
The specifications of a cement bag for storage, are
In the method of voids for determination of the quantity of cement paste, it is assumed that
The surface where two successive placements of concrete meet, is known as
The maximum percentage of chemical ingredient of cement is that of
The void ratio of
Particles of 0.mm size are that of
If a grading curve is horizontal bet-wen the portions ofmm I.S. Sieve and 4.mm I.S. Sieve, the graded aggregates do not contain
Di-calcium silicate (C2S)
For a concrete mix 1:3:6 and water cement ratio 0.6 both by weight, the quantity of water required per bag, is
The type of aggregates not suitable for high strength concrete and for pavements subjected to tension, is
An ideal ware house, is provided
Slump test of concrete is a meausre ofits
Joints in concrete structures, are provided
According to Water-Cement Ratio Law, the strength of workable plastic concrete
If the engineer-in-charge approves, thecm cubes may be used for the work test of concrete provided maximum nominal size of aggregate, does not exceed
The aggregate containing moisture in pores and having its suface dry, is known as
The bulk density of aggregates, is generally expressed as
The factor which affects workability, is
If the effective working time is 7 hours and per batch time of concrete is 3 minutes, the output of a concrete mixer oflitre capacity, is
An ordinary Portland cement when tested for its fineness, should not leave any residue on I.S. seive No.more than
Permissible compressive strength of Mconcrete grade is
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