If mineral oil is present in mixing water for concrete, it increases strength for a concentration upto 2 percent.

Related MCQs

• Segregation of concrete increases the strength of concrete.
• The concrete mix of grade M 25 means that the compressive strength of 15 cm cubes at 28 days after mixing is
• The strength of cement concrete increases with the increase of water cement ratio.
• After the curing of 28 days, the concrete gains strength upto
• Workability of concrete is …….to the strength of concrete.
• The removal of excess air after placing concrete helps in increasing the strength of concrete by
• The process of mixing, transporting, placing and compacting concrete should not take more than ……. min any case.
• The cement concrete prepared by mixing aluminium in it, is called
• Which of following proportion of different ingredient of concrete mix confirm to the arbitrary mothod of mixing?
• The process of mixing, transporting, placing and compacting the cement concrete should not take more than