Concrete Technology Questions

• Curing of pavements, floors, roofs and slabs, is done by
• For a concrete mix 1:3:6 and water cement ratio 0.6 both by weight, the quantity of water required per bag, is
• The surface where two successive placements of concrete meet, is known as
• The minimum percentage of chemical ingredient of cement is that of
• Concrete is unsuitable for compaction by a vibrator if it is
• Pick up the correct statement from the following:
• A concrete using an air entrained cement
• Sand generally contains salt if it is obtained from:
• Pick up the correct statement from the following:
• 'Ware house pack' of cement means
• Di-calcium silicate (C2S)
• The concrete mix which causes difficulty in obtaining a smooth finish, possess
• The specifications of a cement bag for storage, are
• The aggregate impact value of the aggregate used in
• Pick up the correct statement from the following:
• If a grading curve is horizontal bet-wen the portions of 20 mm I.S. Sieve and 4.75 mm I.S. Sieve, the graded aggregates do not contain
• Le-Chatelier's apparatus is used for testing
• Sands of zone I are
• The lower water cement ratio in concrete, introduces
• The impurity of mixing water which affects the setting time and strength of concrete, is