how the slump and Compressive Strength of concrete cube is
performed in a civil engg lab ?

Answer Posted / patricio baluga jr

Fill up the whole cone up to the top with some excess
concrete coming out of top, then repeat tamping 25 times.
(if there is not enough concrete from tamping compression,
stop tamping, add more, then continue tamping at previous
number)
Remove excess concrete from the opening of the slump cone
by using tamping rod in a rolling motion until flat.
Slowly and carefully remove the cone by lifting it
vertically (5 seconds +/- 2 seconds), making sure that the
concrete sample does not move.
Wait for the concrete mixture as it slowly slumps.
After the concrete stabilizes, measure the slump-height by
turning the slump cone upside down next to the sample,
placing the tamping rod on the slump cone and measuring the
distance from the rod to the ORIGINAL DISPLACED CENTER.

Is This Answer Correct ?    2 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Explain moment of inertia?

643


What is the life of anaerobic Digester if it is used for municipal solid waste digetion.

1805


what is stressing

5801


Currently my house construction is going on but we just realized that the portico earth beam couldn't connect with the original earth because the beam rod not extended so Please advice

2183


For sloping slabs or sloping beams why the tension steel from either side of ridge is taken into compression zone of other side?

1631






what are the duties of Site Engineer in work site?

1156


How is calculate the cube molt

1784


How much sand and cement requirement for 1 SQM 125mm thickness Brickwork

207


What materials were used to build the golden gate bridge?

806


If we have the center line of the Finnish road level and we want to know what level of pay would have offset the Lhs and Rhus RHS 1,2.5,5 1,2.5,5 m.

1538


How much quantity water should be placed in one cubic meter area?

891


column at edge of a framed structure is uniaxial or biaxial. and is an interior column is biaxial

3486


how to calculate labour strength for work for RCC,brickwork,blockwork,in &out plaster,flooring,dado,door frame & shutter,painting etc for constructing highrise building?

3316


how to calculate the crushing strength of cement concrete paver blocks 100x100x60 mm thich.

1494


Slump Values for works?

1757