Each layer of concrete placed in the mould, in preliminary test, is compacted 25 times with a 20 mm diameter rod and 60 cm in length

Related MCQs

• In slump test, each layer of concrete is compacted by a steel rod 60 cm long and of 16 mm diameter for
• The compaction factor is the ratio of weight of partially compacted concrete to the weight of fully compacted concrete.
• In preliminary test, the concrete is placed in the mould in
• The top diameter, bottom diameter and height of the mould used for slump test are respectively
• Steel tamping rod of 0.6m length and 16 mm diameter is used for tamping of concrete.
• The top diameter, bottom diameter and the height of a slump mould are :
• How many times in each layer of concrete rodded in a slump cone?
• The preliminary test should be repeated if the difference of compressive strength of three test specimens exceeds
• The concrete in which preliminary tests are performed for designing the mix is called
• The concrete in which no preliminary tests are performed for designing the mix is called