The expansion in Portland cement can be tested by

Which of the following statements is wrong?

According to Indian standard specifications, the concrete should be cured under a humidity of

The indentation marks left on bricks during the process of moulding, are known as

The pigment in paints is mixed to give desired

The chief ingredient of a paint is

The time required for air seasoning of soft wood is

The initial setting of cement is caused due to

The commonly used lime in white washing is