UPPSC AE (CE) Quiz 20

W_p and W_f are the weights of a cylinder containing partially compacted and fully compacted concrete. If the compaction factor (W_p/W_f) is 0.95, the workability of concrete is

The maximum amount of dust which may be permitted in aggregates is

For the construction of cement concrete floor, the maximum permissible size of aggregates is

A concrete using an air entrained cement

Concrete mainly consists of

The ratio of various ingredients (cement, sand, aggregates) in concrete of grade M 20 is:

1) 1:2:4

2) 1:3:6

Pick up the correct statement from the following

Dead load comprises of:

As per IS 383 Sand requiring a high water cement ratio, belongs to