Stainless steel slump test device operation method - Database & Sql Blog Articles

Test - lowercase jpg

Kaixin micro test

Test probe P100-M3

Brand AVX TPSE226M035R0125 Low impedance tantalum capacitor AVX 22

product name:

Stainless steel slump test device

Stainless steel slump test device

Method of operation

1

First, wet the fallen cylinder, iron shovel, mixing board and other utensils with a damp cloth. The drop cylinder is the upper diameter

100mm

Lower mouth diameter

200mm

,high

300mm

, is a trumpet shape.

2

Weigh the material according to the mix ratio: first weigh the cement and sand and pour it

Mixing

Stir well on the plate and weigh the stone together. Pry the center of the pile and pour half of the required water. Mix well and mix well, then pour the remaining water and continue to mix until uniform. Mixing time is about

4-5MIN

.

3

Place the fallen cylinder on the non-absorbent rigid plate, place the funnel on the falling cylinder, pedal on the pedal, and mix the mixture into three layers. The height of each layer is about one-third of the height of the tube. . Each layer is inserted from the edge to the center along the spiral along the helix

25

Second, no impact. Each transplant should be evenly distributed on the interface. When the concrete is inserted into the tube, the rod can be slightly inclined. When inserting the bottom layer, the mast should extend through the entire depth. When inserting the other two layers, insert the layer and insert the lower layer.

20mm

~

30mm

.

4

After the filling is completed, scrape off the excess mixture with a file and smooth the mouth to remove the concrete around the bottom of the tube. Immediately lift the drop tube and lift the tube

5-10s

Finished inside and keep the concrete from lateral and torsional forces. From the beginning of loading to the presentation of the slumping cylinder, the entire process should be

150s

Completed inside.

5

Place the fallen cylinder on the side of the concrete sample of the cone, and lay a ruler on the top of the cylinder toward the mixture. Use a steel ruler to measure the vertical distance from the bottom of the ruler to the highest point of the sample, which is the concrete mixture.

Slump

,The exact value

1mm

, the result is rounded to the nearest

5mm

. When one side of the concrete specimen collapses or shears on one side, it should be resampled and tested. If the above situation still occurs for the second time, it means that the concrete is not easy to handle and should be recorded.

6

,

When the concrete mixture has a slump greater than

220mm

When measuring the final maximum diameter and the minimum diameter of the concrete after expansion, the difference between the two diameters is less than

50mm

Under the condition, the arithmetic mean value is used as the slump spread value. Otherwise, the test is invalid. Accurate value of slump spread

1mm

, the result is rounded to the nearest

5mm

,