Consistency Mortal With the Flow Table

Testing is done so we can find out how much the dose needed for a mortar, so that the work there will be no major difficulties, and also to facilitate the work when the field later.

Work steps :
Weigh portland cement, sand, and water as needed and Enter all the water, cement and sand into the vessel. Add water and run into the mixer on low speed for 30 seconds. Put sand slowly into the vessel with stirring at low speed (140 ± 5 rpm) for 30 seconds. Stop the mixer and remove the medium speed (285 ± 10 rpm) and stir for 30 seconds. Stop the mixer, let mortal in the vessel and wait for 1.5 minutes while pushing down mortal attached to the vessel wall. Stir again at medium speed for 1 minute, then mortal attached to the walls pushed down

Determination of consistency:
Preparation flow table, mold and pestle in position. Moulds laid pad middle of the table (plate) of the flow table that correspond with the lines that have been listed. After completion of stirring, mortal fed into the mold in two layers of approximately the same height, each layer is flattened by rollers / pestle by means stabbed 25 times. Then the surface leveled mortal topped the field with the upper lip prints.

The mold is removed from mortal by way slowly lifted. Movement flow table in a way to rotate the driving lever, so that a knock occurs 25 times in 15 seconds. By this knock, mortal on the table will move widened, filling the table surface until it reaches a certain diameter. Consistency mortal addressed by the flow (flow) after a given beat.

Flow measurement with a special caliper
When used special calipers to measure percent, the amount of flow is the sum of the sum result of the reading scale in mortal diameter measuring 4 positions, expressed in percent.