Work on the job site never stops
2026/07/26

Work Continues Even at a WBGT of 31 Degrees | What We Learned About the Real Truth Behind Heatstroke Prevention

Hello, everyone. This is Enta. We’re now in the latter half of July, and the sweltering heat continues day after day. Or rather, these days feel like hell. (I’m just doing research all the time, but even that’s exhausting.) Anyway, moving on—this time, I’d like to talk about WBGT values and heatstroke. However, I don’t want this post to just end with “Make sure to stay hydrated”…

The Need for Rust-Preventive Oil
2026/07/25

Is Anti-Rust Oil for Rebar Insertion Tools Really Necessary? | Galvanized HDZT77 and the Limit of Oxidation Degradation

Hello, everyone. This is Enta. It’s been really hot every day, huh? lol The job site has been like a steam room since this morning, and it feels like my stamina’s going to wear out first. Let’s make sure to stay hydrated and get enough salt! ^^ But anyway, this time I’d like to talk about “the rust-preventive oil used in the heads of rebar insertion tools—is it really…”

If the temperature goes over 35 degrees, turn off the fan!
2026/07/24

Take Off Work Clothes with Fans When the Temperature Exceeds 35 Degrees | Why This Can Backfire and Heatstroke Prevention Measures at Slope Construction Sites

Hello, everyone. This is Enta. We’re already in the second half of July. The temperature has been easily exceeding 35 degrees day after day. I’ve been traveling all over on my own to conduct site surveys, and it’s seriously exhausting!!! The job sites are truly hell. But anyway, this time I’m going to talk about fan-equipped workwear—something I keep writing about every year…

Watering and Curing
2026/07/23

Why Do We Spray Water on Concrete? | An Explanation of Curing for Sprayed Concrete and Formwork for Beginners

Hello, everyone. This is Enta. We’re now in the second half of July, and it’s already unbearably hot on construction sites during the day, isn’t it? ^^ Concrete is just like people—if you leave it alone at this time of year, it loses moisture rapidly. But enough of that. In this post, I’ll be discussing “Why it’s a good idea to water concrete”…

"The legal framework is the correct answer."
2026/07/22

The Correct Way to Install Formwork Is Level (Horizontal) | Why Aligning It with the Road Grade Will Make Reinforcement Installation a Nightmare

Hello, everyone. This is Enta. When I’m driving on the highway, I can’t help but keep looking at the road embankments—it’s an occupational hazard, isn’t it? lol The other day, while I was on the road, I saw a retaining wall that sloped diagonally to match the road’s gradient. Just as I thought, “Oh, that’s to match the gradient,” I also wondered, “What if there were rebar installers working on this…”

Dojima River Occupational Safety Consulting Office
2026/07/21

Factors Contributing to Unsafe Behavior and Training (from the Dojima River Occupational Safety Consulting Office)

To prevent workplace accidents, it is crucial to reduce workers’ “unsafe behaviors.” However, simply repeating the same old advice—such as “Be careful while working”—will not provide a fundamental solution. In fact, the factors that lead to unsafe behaviors can be broadly categorized as follows…

Field App
2026/07/20

Control Point Navigator and Standard Values Pocket | Director Jou’s Free App Is Transforming Construction Sites

Hello, everyone. This is Enta. The other day, Director Jou contacted me to say, “We’re releasing these!” And not just one, but two free apps since the start of July. Both are tools you can use right on the job site. But enough of that. This time, I’ll be covering “Control Point Navigator” and “Standard Values…” released by Director Jou…

Drilling Machines and AI
2026/07/19

Can AI Be Integrated into Drilling Rigs? | Considering the Future of Slope Construction Based on Machines with Control Panels Seen at CSPI-EXPO

Hello, everyone. Hello, everyone. This is Enta. There was one more thing I didn’t get a chance to mention at the CSPI-EXPO the other day. Personally, I actually thought this was the main point, lol. But anyway, this time I want to talk about a machine I saw at the event that really caught my eye. At the CSPI-EXPO…

Stone Masonry Measurement App
2026/07/18

Just take a photo of the stone wall and trace the joints! I’ve created an app that instantly calculates the amount of mortar needed and provides an estimate!

Hello, everyone. This is Enta! Today, I’m releasing a little app. I’ve created an app that analyzes photos of stone walls to determine the joints and instantly calculates the amount of Moldam to inject, as well as the estimated construction cost! I want to use the Moldam method to address hollow spaces in stone walls. But “the amount to inject…”