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Crack Test Part 1 | Start of Field Testing
Hello, everyone. This is Enta. Let’s start the crack test. Here’s how I set it up. From left to right: Left: No spacer (3); Middle: Steel spacer (2); Right: Plastic spacer (1). The numbers were written on the mortar after spraying. The box is 12 centimeters, and the spacer…
Let's Try a Crack Experiment (Part 1) | Investigating the Cause
Hello, everyone. This is Enta. One of our employees made this for me the other day! Do you recognize it? This! Does it ring a bell? I’d been meaning to make this box for a while, but I just couldn’t find the time. Now I can use it for crack testing. Conditions…
Filling a Large Hole in Natural Ground | On-Site Response
Hello, everyone. This is Enta. When you’re installing retaining walls, there are times when you run into a big gap in one spot and just don’t know what to do, right? For example, something like this. There’s a huge gap, and it doesn’t seem like you can bend the retaining wall to fit it. But it’s pretty deep. If you leave it alone, it might eventually collapse…
That Submersible Pump | Anti-Theft Modification
Hello, everyone. It’s Enta here. It finally arrived the other day! Here it is! As you can see, it’s a submersible pump! But wait—it’s actually a submersible pump for hot water!! And it just arrived right now, when winter is almost over lol. I guess I won’t be able to use it until next winter…
Key Points to Note for Test Mixes | Concrete Quality
Hello, everyone. This is Enta. The other day, I did some test mixing for the first time in a while, lol. Even though the current method has been established for over 30 years now, I can’t help but wonder, “What’s the point of test mixing anyway?” When it comes to spray mortar, you mix a 1:4 mortar ratio, but based on experience, it’s almost always…
Sealed Systems Are Currently the Mainstream | Trends in Legal Framework Construction
Hello, everyone. This is Enta. I think this falls within the legal framework, but if the area were within the boundaries shown in the photo, how would you assess it? The area within the design boundaries is designated for green space. The left side is bedrock. The right side is a mixture of soil and sand with partial rock outcrops. About 80% of this mountain consists of exposed bedrock…
Q&A on Substrate Preparation for Spray Coating | Frequently Asked Questions
Hello, everyone. This is Enta. I received a question today, so I’d like to try answering it. Q: We’re installing retaining walls after completing excavation work at a challenging mountain site. Since there’s a risk of collapse while we’re working, we’ve decided to apply a lean-mix mortar without lath…
Choosing Products with the Best Value for Money (Spray Application) | Selecting Materials
Hello, everyone. This is Enta. Here’s a consumable we use when doing spray application: the delivery hose. I wonder if the name varies by region? It’s also called a material hose, right? We’ve been using this hose on a trial basis recently. If you take a closer look, you’ll notice it has some unique features…
This is like this, and that is like that, so this is what happens! (Talking about money)
Hello, everyone. This is Enta. Lately, I’ve been receiving a lot of work requests from far away. Thank you very much. However, I won’t be able to take on any projects until February of next year. I’m very sorry for the inconvenience, but I may be able to accept projects starting after that, so please feel free to contact me…



