Hello, everyone.
This is Enta.
The first round of reverse-winding work was completed the other day.
The next one is next weekend, isn't it?
But this is going to happen three more times...
On top of that, the plant would have to be moved, too...
Ahhhh—this is so hard lol
Reverse-wrap installation is really tough!
But that's beside the point.
Cement Slurry Pressure Test, Part 7 That's it.
Previous Articles
Cement Slurry Pressure Test, Part 1
Cement Slurry Pressure Test, Part 2
Cement Slurry Pressure Test, Part 3
Cement Slurry Pressure Test, Part 4
Cement Slurry Pressure Test, Part 5
Cement Slurry Pressure Test, Part 6
Regarding the packer,
The Cement Slurry Won't Stop (Part 1)
The Cement Slurry Won't Stop (Part 2)
The Cement Slurry Won't Stop (Part 3)
The Cement Slurry Won't Stop (Part 4)
The Cement Slurry Won't Stop (Part 5)
For this test, just like last time, does the strength change depending on whether or not pressure is applied?
Test Results Under Pressure
There’s one problem here, though: the test specimen with a strength of 78.9 N/mm² chipped because I didn’t cut it properly.
In addition to the reduced cross-sectional area, there was also an issue with how the core was removed.
It was so hard that the blade wouldn't cut through, so I kept pushing down hard, which left the surface all wavy.
That is why this variation occurred.
To begin with, since it’s a small cross-section made with high-strength cement slurry, it’s only natural that there would be some variation, but,
The gap between the bottom and the top is way too big.
This appears to be an error in the preparation of the test specimen.
However, the results were clearly different.
In terms of strength, it has increased by about 20%.
Question
This raises a question.
The pressure applied to the fixing section is eventually released.
What happens to the strength when the pressure is released?
I guess the next experiment will depend on the strength of the depressurized milk, lol.
This is just for the next experiment segment, mind you! lol
See you later.
