Hello, everyone.

This is Enta.

I've been working at a rebar installation site for the past few days—do you know what a "box cut" is?

This refers to the process of pre-drilling holes to make it easier to insert rebar or install ground anchors.

It varies depending on the job site, but as shown in the photo above, we sometimes use VP pipes and sometimes VU pipes, right?

 

The most common type is the inexpensive void pipe.

I really hope they don't go with VP pipes, lol.

The job site this time was a void pipe.

As usual, we'll start by cutting out the void and beginning construction.

 

We'll proceed with the construction as usual, install the rebar, and finish the job.

I've actually been wondering about this for a while now—do you know what I mean?

After removing the voids.

The area around the void is wide open.

This site is within legal limits, but aren't the gaps around the voids just incredible??

Depending on the sprayer, some people will first harden the area around the void before spraying the rest.

I suppose that would reduce the gaps somewhat, but it’s not as if everything would turn out that way.

Quite often, after voids are removed, the voids expand.

 

Since voids rot, we remove them completely.

In the case of a void, it can be easily removed, so it's not a problem.

And since we'll be injecting cement slurry afterward, there shouldn't be any problems.

It fills up completely!

 

However, on the other hand, if these were VP or VU pipes, it would be a problem if there were a gap like this on the back side—the part that bears the most stress—wouldn't it?

Personally, I thought VU meters were a good option because they can break, but,

Lately, I've started to wonder if Void might actually be the higher-quality option in the end.

 

I realized how important it is to really understand and verify what’s inside.

 

It's important to make the invisible aspects of the workplace visible, isn't it?

I feel like I could make something, lol.

 

See you later.

P.S. Starting today, three Nepalese technical interns will join Enta, and two will join Izumi. (One person from Izumi withdrew.)

Our household is gradually getting bigger, and things are starting to get tough.

We also plan to put more effort into construction training in various areas.