Simply replacing the mixing water with hot water improves the quality
Hello, everyone. It’s Enta here. I’m in Shizuoka today! In a 4-metric-ton truck. Normally, one of our employees would have gone, but the ones with a medium-sized truck license were busy, so I ended up being the only one left... Plus, today was the last day of cleanup at a site where only a 4-metric-ton truck could get in. Well, I guess I had to go...
Selecting the Right Cement and Flow Tests | Cost Estimation on Emergency Design Sites
Hello, everyone. This is Enta. For the past few days, I’ve been swamped with designing and estimating for a slope that suddenly collapsed out of nowhere... And all I keep hearing is, “Pay up first!”... No, no—I can’t release the funds until we figure out the construction method and quantities first, right!? Haha. Well then, just make up your minds already!…
How to Conduct a Cantab Test | Procedures and Evaluation Criteria for Chloride Content Measurement | Explanation by a Slope Engineer
Hello, everyone. This is Enta. Are you using Cantab? Cantab is a product that makes it easy to measure chloride content in fresh concrete and fine aggregates. The chloride ion concentration in concrete is generally considered to be 0.3 kg/m³ or less. In short, if it exceeds this...
Summer Innovation | Grace Chemical FT7 Fresh Mortar Retarder
Hello, everyone. This is Enta. The Obon holiday is coming up this weekend. Please be extra careful not to get injured before the holiday begins! But enough of that. Summer ingenuity: Isn’t this the kind of thing that calls for a little ingenuity in the summer? The reason I say that is because at this job site, we’re purchasing fresh mortar from a ready-mix plant, and the formwork…
Cement Milk Pressure Test (Part 1, Revisited) | Verification of Strength Tests
Hello, everyone. This is Enta. We’ve been having some steady rain for the past few days! It finally feels like the rainy season. But it’s already July! We’ve reached the halfway point of the year… I’ll do my best in the second half, too! This has nothing to do with the article, but I’ve added our sales offices to the “Access” section of our company website…
The Cement Slurry Won't Stop (Part 5)
Hello, everyone. This is Enta. I’ve been working on polishing this mixer nonstop for the past few days. I’m removing rust and taking apart each part to service it. I’ll order replacements for any defective parts or parts that can’t be greased. I enjoy putting together paperwork, but working on a single machine like this…
The Cement Slurry Won't Stop (Part 4) | Materials for Making Packers
Hello, everyone. This is Enta. The Cement Milk Won’t Stop (Part 1) The Cement Milk Won’t Stop (Part 2) The Cement Milk Won’t Stop (Part 3) Materials for Making a Packer Packer, Span Seal, paper tape, Insulo…
Cement Slurry Won't Stop (Part 3) | Comparison of Packer Types
Hello, everyone. This is Enta. Next week, our projects are overlapping in a way that’s impossible to manage, so we’ve decided to put one of them on hold... Things were looking like they’d run smoothly, but one project fell behind and another got moved up, so we couldn’t work it out... orz Sorry for the inconvenience. The project with the 300 legal limit is also...
The Cement Slurry Won't Stop (Part 2) | Plugging the Hole with a Packer
Hello, everyone. This is Enta. What should you do if the grout won’t rise? Based on the diagram from last time, you just need to seal holes 1 and 2. (In reality, you don’t know exactly where the holes or cracks are. It’s easier to find out if you insert a fiberscope.) That…