When concrete is to be laid under water ___________ is to used.

Related MCQs

• Water from concrete comes out to the surface of the concrete is known as……….
• Which of the following types of concrete mixture is most commonly used in precast concrete factories?
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• The mass concrete in piers and abutments, the grade of concrete mix used, is
• The separation of water or water-cement mixture from the freshly mixed concrete is known as bleeding.
• 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
• Separating out of the ingredients of concrete mix from concrete is known as……… .
• Workability of concrete is …….to the strength of concrete.
• If the various concrete ingredients i.e. cement, sand and aggregates are in the ratio of 1:3:6, the grade of concrete, is
• Durability of concrete can be improved by impregnation of …………… in the voids of concrete.