Hello, everyone.
This is Enta.
Are you putting up the last layer? lol
When laying the last layer, you check the number of under-layers that have been poured, right?
The standard specification calls for 30 main anchor pins and at least 150 auxiliary anchor pins per 100 square meters.
This standard value is not listed anywhere at the moment.
That's because prices are now based on market rates.
| Market PriceThe "method" refers to a composite approach used in the cost estimation of public works projects, in which costs are calculated by adding up traditional unit rates, labor and material prices, and other factors.Unit Pricewithout using [...], and including material, labor, machinery, transportation, and subcontracting costsMarketThis method involves identifying the actual transaction prices and using them directly in the cost estimate. |
The current rate for formwork installation is 1,620 yen per square meter.
Aichi Prefecture: 1,000 m² or more (standard); no restrictions; slope cleaning included (no adjustment)
People often ask me what the basis is for these numbers—30 and 150.
It was actually included in the Ministry of Land, Infrastructure, Transport and Tourism’s old “Yellow Book” (on cost estimation), but it is no longer there.
Are the books currently listed about civil engineering construction unit prices?
I think it was still there until a few years ago.
And although concepts like the loss rate have disappeared since we switched to market-based pricing, they actually still exist.
In the past, there was a set figure for the loss rate; for example, for Las wire mesh, it was 1.4 times.
We needed 1,400 m² of materials to construct a 1,000 m² slope, so we had to order them.
However, since we’re using market unit prices, why would we need to receive more than 1,000 m² of material to cover a 1,000 m² slope with lath?
That's what I was told at the city office before. (I'm a young newcomer, though.)
So we no longer need things like cash books. This part has become easier (depending on the region).
I used to be quite conscious of the 1.4x loss rate, but now I’m fine with it—I just do as much as I can.
However, in the case of cumulative calculation, you need to be careful because the loss rate is a factor.
So, up to this point, we've been talking about the money for the final stretch.
This is where I get to the main point I wanted to write about, lol.
You’ve all seen craftsmen driving pins into lath on construction sites, right?
Have you ever thought about the pitch in that situation?
I think this is something that’s been said for a long time, and I imagine there are many people who just play without giving it a second thought.
This is the pitch. That said, it’s just a theoretical concept.
The square in the drawing measures 10 m × 10 m, for a total area of 100 m².
That's what I thought, but that's all for now.
See you later.
