Concrete and Mortar
2026/01/13

Concrete or Mortar for Slope Construction? (Part 2)

Hello, everyone. This is Enta. Concrete or Mortar for Slope Construction? (Part 1) In this post, I’ll discuss why concrete isn’t used for slope formwork. Let’s review the mix designs. Item Mortar Concrete Main Materials…

Measures Against Extreme Heat
2026/01/11

Let's take a closer look at the "Measures Against Extreme Heat in Construction Work" issued by the Ministry of Land, Infrastructure, Transport and Tourism

Hello, everyone. This is Enta. Here’s a new initiative announced by the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) at the end of last year: “Support Package for Heatwave Countermeasures in Construction Projects” — Supporting the Implementation of Diverse Work Styles During Heatwaves — An overview of this has been released, so I’d like to take a quick look at it. Attachment…

Concrete and Mortar
2026/01/10

Concrete or Mortar for Slope Construction? (Part 1)

Hello, everyone. This is Enta. Are you doing any spray work? lol Concrete vs. Mortar In this post, I’ll be talking about sprayed concrete and sprayed mortar. I’m sure you already know the difference between mortar and concrete, but let’s go over it again. Item Mortar Concrete …

The Importance of Education
2025/12/22

The Importance of On-the-Job Training | What I Learned from Training a Young Operator in Double-Pipe Drilling

Hello, everyone. This is Enta. I’ve been working night shifts since last week. As for what I’m doing—I can’t say just yet, but it’s pretty interesting lol (I’ll tell you eventually). My job there is to train the younger operators lol. I’m teaching them how to drill double-pipe wells. When it comes to drilling…

Slope Engineering Certification
2025/10/16

What happens after I obtain the Slope Protection Core Technician certification?

Hello, everyone. This is Enta. The results for the Slope Protection Core Technician exam have been announced. How did everyone do on the Reiwa 7 (1st Session) Registered Road and Other Slope Protection Core Technician exam? The exam questions have also been released. If you work in slope protection, you’ll probably understand them to some extent. Pass…

Zabuton Frame
2025/10/01

This is the best spot for the cutout in the zabuton frame!

Hello, everyone. This is Enta. Are you putting void tubes in your zabuton frames? I’ve talked about this before lol. But since I get asked about it a lot, I’ll write about it again lol. In actual practice, the finish looks better if you don’t use void tubes. There’s no doubt about that…

Internal friction angle φ and cohesion C
2025/09/29

What Slope Engineers Should Know: A Discussion of Cohesion (c) and Angle of Internal Friction (φ), Commonly Used on Construction Sites (Part 3)

Hello, everyone. This is Enta. What Slope Engineers Need to Know: A Discussion of Adhesion (c) and Angle of Internal Friction (φ), Commonly Used on Construction Sites (Part 1) What Slope Engineers Need to Know: A Discussion of Adhesion (c) and Angle of Internal Friction (φ), Commonly Used on Construction Sites (Part 1) In my previous post, I wrote about soil strength. …

Internal friction angle φ and cohesion C
2025/09/19

What Slope Engineers Should Know: A Discussion of Cohesion (c) and Angle of Internal Friction (φ), Commonly Used on Construction Sites (Part 2)

Hello, everyone. This is Enta. This is a continuation of my previous post. What Slope Engineers Should Know: A Discussion of Adhesion Coefficient c and Angle of Internal Friction φ, Commonly Used on Construction Sites (Part 1) I haven’t actually conducted every single test myself, but I’m writing this based on what I learned in school and my experiences observing tests in the lab…

Internal friction angle φ and cohesion C
2025/09/18

What Slope Engineers Should Know: A Discussion of Cohesion (c) and Angle of Internal Friction (φ), Commonly Used on Construction Sites (Part 1)

Hello, everyone. This is Enta. As I mentioned the other day, my phone’s contact list got wiped, so I don’t have most of your phone numbers anymore lol. It’s a bit of a hassle, but please feel free to send me a text or call me directly. Thank you for your understanding. But anyway… We…