No matter where you buy cement, it meets JIS standards.
Hello, everyone. This is Enta. Our industry uses a lot of cement, doesn’t it? Plus, with material costs rising so rapidly lately, it’s really tough, isn’t it? The other day, I went to a home improvement store and found that their cement was actually cheaper than what we buy, lol. That’s per bag…
Compressive Strength Testing at Public Testing Facilities | Cost Reduction and Improved Reliability
Hello, everyone. This is Enta. You’re conducting compression strength tests, right? Where do you crush the samples? (I mean, are you conducting compression strength tests?) Surprisingly, there can be differences depending on the prefecture, and there are also differences in how individual supervisors approach things. …
Selecting the Right Cement and Flow Tests | Quality Control in Slope Construction
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!…
Comparative Testing Is Essential When Using Antifreeze | How to Verify the Strength of Cement Slurry
Hello, everyone. This is Enta. We were talking about antifreeze at our office. I had already explained to our employees why antifreeze is pointless. So, even though they know this, if the general contractor says to use it, we’ll have to use it. The option of not using antifreeze is…
With Hot Water | A Slope-Maintenance Worker’s Winter Pleasure
Hello, everyone. This is Enta. It’s been getting really cold lately. Since this is important, I’m reposting a previous article lol. This job site was especially cold—the water kept freezing over and over again. It was still okay during the day, but it was particularly cold in the mornings and evenings, so we had to make the grout set quickly…
Lowering Workability Improves Productivity | A Paradox
Hello, everyone. This is Enta. Have you ever thought about the balance between workability and quality in quality control? Let’s take cement slurry, which is commonly used. In a flow test, it typically takes 10 to 18 seconds, with a maximum of 22 seconds (for railways), right? How long does it usually take you to apply it? Well, one…
Even if the flow test results don't fall within the specified range, it's okay as long as you repeat the test.
Hello, everyone. This is Enta. Are you measuring your flow rates? I’m sure you’ve often found that your results don’t fall within the specified range during these flow tests. Especially on hot summer days, lol. First, let’s start with the basics: What exactly is this flow rate measurement (flow test)?…
Found a Great Product! Test Specimen Box | Curing Tools
Hello, everyone. This is Enta. Have you heard of this? It’s a product for keeping test specimens warm. It looks like it would be especially useful during the winter. And it’s great because it’s so convenient—you can just take it right to the testing facility. As a general rule, test specimens should not be subjected to impact…
Measuring Heat of Hydration Reveals the Effectiveness of Antifreeze Agents | Verification Experiment
Hello, everyone. This is Enta. I’ve been saying this for a while, but I just thought of something good regarding the antifreeze tests. It’s that there’s no need to go to the trouble of conducting experiments on antifreeze—which is meant to prevent freeze damage—on-site, lol. Well, I guess people who know this are probably thinking, “Of course,” lol… In the end, freeze damage…