The aggregates of rounded shape require minimum cement paste to make good concrete.

Related MCQs

• 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
• 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.
• The arbitrary mix method, the coarse aggregates are taken twice the fine aggregates.
• The strength of cement concrete increases with the increase of water cement ratio.
• The cement concrete having water-cement ratio less than 0.45 by weight, causes honey-comb structure.
• Smaller size aggregates require less quantity of water for lubrication.
• …………refers to the gain of strength of a set cement paste.
• The formation of cement paste at the surface is known as laitance.
• The knowledge of a standard consistency of a cement paste is essential to perform