Protect Drill Rig Bolts and Nuts with Grease | Tips for Protecting Them from Cement Slurry
Hello, everyone. This is Enta. I’ve been going to a lot of drinking parties in December, and I’m starting to feel a little under the weather, lol. This time of year, with all the opportunities to drink and the temperature swings, it’s easy for everyone to get tired. Please take care of yourselves. But anyway, the other day I showed one of our employees how to assemble the swivel gasket. So…
Purchasing a Komatsu WA50 Tire Shovel | A Review of Machinery Investments by a Slope Construction Company
Hello, everyone. It’s Enta! The other day, that thing I ordered around October of last year finally arrived! Due to semiconductor shortages and other issues, we hadn’t been able to get all the parts together, so delivery was originally scheduled for June or later, but for some reason, it ended up being brought forward unexpectedly. The model is a Komatsu WA50. The bucket is the 0.5 m³ type, and…
Drilling in High-Pressure Water (Part 3) | Field Test
Hello, everyone. This is Enta. This is a continuation of my previous post. After drilling with a crown bit, cement slurry is injected. Basically, when drilling the outer hole, the slurry is expelled outside the outer casing. And when the water pressure is high, it’s surprisingly difficult to tell whether it’s slurry or water…
Drilling in High-Pressure Water (Part 2) | On-Site Response
Hello, everyone. This is Enta. In my previous post, I introduced the crown bit for drilling in high-water-pressure environments. Here, I’ll explain how to use a crown bit for drilling. That said, it’s actually extremely simple—it’s exactly the same as standard single-hole drilling (outer drilling). Outer…
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…
If you get your hands dirty on the job, this really gets the dirt off!
Hello, everyone. This is Enta. It’s a national holiday, but we’re open as usual. For those of you who get to take time off, please enjoy Golden Week and stay safe! But enough of that—what do you do when you get your hands dirty on the job? Well, most people probably carry soap or some kind of cleanser, but what about when you don’t have any?…