Shrinkage in concrete can be reduced by using

For quality control of Portland cement, the test essentially done is

Ifg of water is required to have a cement pasteg of normal consistency, the percentage of water is,

Pick up the correct statement from the following:

Proper batching ensures

Segregation is responsible for

Separation of coarse aggregates from mortar during transportation, is known

Under normal conditions using an ordinary cement, the period of removal of the form work, is :

Specified compressive strengh of concrete is obtained from cube tests at the end of

Workability of concrete for a given water content is good if the aggregates, are

Addition of pozzolana to cement

According to the recommendations of IS : 456-the expansion joints

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

Pick up the correct statement from the following:

The datum temperature for maturity by Plowman, is

Grading of sand causes great variation in

For given water content, workability decreases if the concrete aggregates contain an excess of

Pick up the incorrect statement from the following:

For compacting plain concrete road surface of thickness less thancm, we use

Pick up the incorrect statement from the following:

The percentage of the aggregate of F.M. 2.6 to be combined with coarse aggregate of F.M. 6.8 for obtaining the aggregates of F.M. 5.is

Pick up the correct statement from the following:

Ordinary concrete is not used for concrete grade

For given water content, workability decreases if the concrete aggregates contain an excess of

1.S. Sieve Nos.mm and 4.mm are geneally used for grading of

Percentage of pozzolanic material containing clay uptoused for the manufacture of pozzolana cement, is

The produce impermeable concrete

Hardening of cement occurs at

Pick up the correct statement from the following:

For batching 1:3:6 concrete mix by volume, the ingredients required per bag ofkg cement, are: