Vicat's apparatus is used for
Fineness test
Consistency test
Setting time test
Soundness test
- Addition of pozzolana to cement
- A concrete having a slump of 6.5 cm, is said to be
- If 50 kg of fine aggregates and 100 kg of coarse aggregates are mixed in a concrete whose water cement…
- The risk of segregation is more for
- Curing a concrete for long period ensures better
- If aggregates completely pass through a sieve of size 75 mm and are retained on a sieve of size 60 mm,…
- An excess of flaky particles in concrete aggregates
- Pick up the correct statement from the following:
- Joints in concrete structures, are provided
- The main object of compaction of concrete, is:
- The effect of adding calcium chloride in concrete is (i) To increase shrinkage (ii) To decrease shrinkage…
- According to IS: 4561978, minimum slenderness ratio for a short column is
- M 150 grade of concrete approximates
- The load factors for live load and dead load are taken respectively as
- Which of the following statements is incorrect?
- For a continuous slab of 3 m × 3.5 m size, the minimum overall depth of slab to satisfy vertical…
- If the effective working time is 7 hours and per batch time of concrete is 3 minutes, the output of…
- In counterfort type retaining walls (i) The vertical slab is designed as a continuous slab (ii) The…
- Hydration of cement is due to chemical action of water with
- Due to circumferential action of the spiral in a spirally reinforced column
- The cement whose strength is a little lower than the ordinary cement during the first three months but…
- Workability of concrete is directly proportional to
- The 28 days cube strength of mass concrete using aggregates of maximum size 5 cm for gravity dams should…
- Pick up the correct statement from the following:
- Slump test of concrete is a measure of its
- According to IS: 4561978, the maximum reinforcement in a column is
- If 1500 g of water is required to have a cement paste 1875 g of normal consistency, the percentage of…
- How long will it take for the concrete to achieve 100% of its strength?
- Select the incorrect statement
- For a good concrete