Concrete Technology Questions

• Curing
• Curing a concrete for long period ensures better
• The following proportion of the ingredients of concrete mix, is not in conformation to arbitrary method of proportioning
• If 1500 g of water is required to have a cement paste 1875 g of normal consistency, the percentage of water is,
• The increased cohesiveness of concrete, makes it
• To obtain cement dry powder, lime stones and shales or their slurry, is burnt in a rotary kiln at a temperature between
• M10 grade of concrete approximates
• The rock which is not calcareous, is :
• Under normal conditions using an ordinary cement, the period of removal of the form work, is :
• The standard sand now a days used in India, is obtained from
• Transport of concrete by pumps, is done for a distance of
• An aggregate is said to be flaky if its least dimension is less than
• Vicat's apparatus is used for
• To ensure constant moisture content in aggregates
• While compacting the concrete by a mechanical vibrator, the slump should not exceed
• Construction joints are generally provided in concrete
• For quality control of Portland cement, the test essentially done is
• The maximum amount of dust which may be permitted in aggregates is
• Pick up the correct statement from the following:
• For the construction of cement concrete floor, the maximum permissible size of aggregate, is