Concrete gains strength due to

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Concrete is unsuitable for compaction by a vibrator if it is

The diameter of the Vicat plunger ismm and its length varies from

The commercial name of white and coloured cement in India, is

The grade of concrete Mmeans that compressive strength of acm cube afterdays, is

The type of aggregates of same nominal size, which contain less voids when compacted, are

Construction joints are provided

The cement whose strength is a little lower than the ordinary cement during the first three months but attains afterwards the same strength, is known as

The condition not applicable to water cement ratio law, is

Transport of concrete by pumps, is done for a distance of

The type of aggregates of same nominal size, which contain less voids when compacted, are

The top diameter, bottom diameter and the height of a slump mould are :

Slump test of concrete is a measure ofits

If aggregates completely pass through a sieve of sizemm and are retained on a sieve of sizemm, the particular aggregate will be flaky if its minimum dimension is less than

Mgrade of concrete approximates

For the construction of cement concrete floor, the maximum permissible size of aggregate, is

Concrete mainly consists of

To ensure constant moisture content in aggregates

Saw dust can be rendered chemically inert by boiling it in water containing

Inert material of a cement concrete mix, is

The shrinkage of concrete

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Allowable shear strength of concrete, depends upon

For the construction of cement con-certe dams, the maximum permissible size of the aggregates, is

An aggregate is said to be flaky if its least dimension is less than

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High temperature

Workability of concrete mix with low water cement ratio is determined by

The maximum amount of dust which may be permitted in aggregates is