Slump Cone Test Procedure For Concrete Pdf

Workability of concrete by slump cone test 1.

Slump cone test procedure for concrete pdf.

Since 1922 slump test has been widely used to check out the concrete workability at the site. Thoroughly mix the sample by shovelling to form a cone on the. The slump operation shall be completed in a maximum elapsed time of 2 1 2 minutes. The slump test gives satisfactory results for the concrete mix of medium to high workability and unfortunately it does not give the correct indication of low workability which may give zero slumps.

Commence the slump test as soon as possible after sampling of concrete as per standard procedure described in chapter 2. Procedure for concrete slump cone test. This test is also known as the slump cone test slump test measures the consistency or workability of concrete. United kingdom and mainland europe edit in the united kingdom the standards specify a slump cone height of 300 mm a bottom diameter of 200 mm and a top diameter of 100 mm.

9 1 3 performing slump test 9 1 3 1 procedure. The mold for the concrete slump test is a frustum of a cone 300 mm 12 in of height. Procedure of concrete slump test. Is 1199 1959 methods of sampling and analysis of concrete.

Keep in mind that only pour 1 4 th part of the cone at first. Mould or slump cone with a height of 300 mm bottom diameter 200 mm and top diameter 100 mm. Apparatus for slump cone test. Slump cone with its base plate.

Measuring slump of concrete. Measure the amount of slump in inches from the bottom of the straight edge to the top of the slumped concrete at a point over the original center of the base. Place the mould on a smooth horizontal non porous base plate. 9 1 3 2 preparation of sample for test.

It is used to check the workability of freshly made concrete for the easy placement of concrete. Take the slump cone and put on its base plate. Clean the internal surface of the mould and apply oil. Do not use in any other tests.

In the case of concrete containing aggregate of maximum size more than 38 mm the concrete shall. Fill the mould with the prepared concrete mix in 4 approximately equal layers. Empty the sample from the container onto the sampling try. This test method was originally developed to provide a technique to monitor the consistency of unhardened concrete.

Under laboratory conditions with strict control of all concrete materials the slump is generally found to increase proportionally with the water content of a given concrete mixture and thus to be inversely related to concrete strength. The base is 200 mm 8in in diameter and it has a smaller opening at the top of 100 mm 4 in. Now the required concrete should be taken and poured into a slump cone. Slump test procedure field testing 1.