The cement concrete having water-cement ratio less than 0.45 by weight, causes honey-comb structure.

Related MCQs

• The compaction factor is the ratio of weight of partially compacted concrete to the weight of fully compacted concrete.
• The strength of cement concrete increases with the increase of water cement ratio.
• If 50 kg of fine aggregates and 100 kg of coarse aggregates are mixed in a concrete whose water-cement ratio is 0.6, the weight of water required for harsh mix is
• If the various concrete ingredients i.e. cement, sand and aggregates are in the ratio of 1:3:6, the grade of concrete, is
• The compressive strength of an ordinary Portland cement (1 : 3 cement mortar cube) after 7 days test should not be less than
• Workability of concrete mix having very low water-cement ratio should be obtained by
• Which of the following ingredient of cement when added in excess quantity, causes the cement to set slowly?
• To perform the soundness test, the water is added to the cement at the rate of 0.72 P by weight of cement, where P is the percentage of water required for normal consistency paste.
• Total…….. % of water by weight of water by weight of cement is required for complete hydration.
• The placing of concrete should start width-wide in reinforced cement concrete slabs from one end.