The use of antifreeze in winter Suixi antifreeze Tongling antifreeze price

Speaking of the use of antifreeze, you can also recall the magical period in the early days of your career.

2012 was my first year in the admixture industry, and it was also the year that mixing stations in Shijiazhuang gradually began to accept polycarboxylate superplasticizers. That year, I was a layman regarding the cost structure and profit margin of admixtures. He is still a novice who only knows how to adapt. My company is headquartered in Jiangsu, and Shijiazhuang is a newly developed market. The leaders of the company's technical service department may also be ignorant about the use of antifreeze in winter. At the very least, they don’t understand the actual local situation. Based on the above objective basis, when changing the antifreeze admixture formula between seasons, at minus one degree Celsius, our company directly increases the antifreeze "buff" of the admixture to full level. The dosage of sodium nitrite is 15%, and an additional 3% is added. of triethanolamine.

This approach is like a person who has a headache and wants to go to the hospital to get some painkillers. The doctor just says, "Nurse, give this old man a dose of morphine." ". Who can bear this?

The formula that time increased the cost of admixtures by 700 yuan/ton. I have forgotten the specific data. After all, I didn’t know how much sodium nitrite sold for at that time. It’s not that I’m lazy, it’s that big companies have weird brains. Always instill in employees the idea that they should specialize in a certain field and do whatever job they are assigned to. Leave the rest to the professionals. When I was young and had just entered the workplace, I felt that the company's approach was overbearing, reasonable, and lofty. Now that I think about it, this is a common problem among large companies. The more detailed the work is, the lower the efficiency of upstream and downstream transmission will be.

For individuals, being in an industry and it is such a small industry, the scope of one’s work should be firmly defined within a scope that has no boundaries. . This person's career will become narrower and narrower in the future, and may eventually lead to nowhere. In my subsequent work, I also encountered an unprecedented crisis in my career. In the end, God blessed me and I got through that difficult period smoothly. So much so that in my subsequent work, I no longer believed in the nonsense about specializations in any profession. As long as it's about admixtures, I think it's all my business. I am doing the job of moving bricks, but I also try to think about my work content from a higher perspective. For example, how much does a brick cost? How many bricks can the profit from moving be enough to cover a day's salary?

It seems a bit far.

Let’s talk about antifreeze. A full antifreeze “buff” will naturally cause no problems in use. However, the company does not want to bear the high cost of this "buff". The wool comes from the sheep, and it even wants to make more money from it. The additional antifreeze cost of 700 yuan/ton is passed on to the sales price and becomes 1,000 yuan/ton. The actual operation method is that the selling price of the admixture remains unchanged and the dosage is increased from the previous 2.0% to 3.0%. As a result, not only the mixing station was dissatisfied, but also the sales staff were dumbfounded. This operation is really cool. The market environment for admixtures at that time was good. Even if things got to this level, the mixing station would only engage in friendly negotiations. If this kind of thing were done today, I'm afraid my company would be blacklisted directly. Anyway, I want to be a purchaser, and I will never cooperate with this kind of supplier in the future. But having said that, the market back then was in the midst of product upgrading, and no one knew how to do many things. In the second year, the company learned its lesson and stopped adding triethanolamine. It also adopted the method of increasing the dosage of sodium nitrite by 1% for every one degree Celsius lowered to effectively reduce the cost of exterior antifreeze.

I remember an interesting thing here. The function of antifreeze is to add to concrete to prevent frost heaving caused by the freezing of free water before the concrete hardens, destroying the structure of the concrete from the inside. We have a customer whose admixture pipeline design is unreasonable. PPR pipes with a diameter of 16mm are used in production and are not insulated. A portion of the admixture will remain in the pipe after each use. One night a sudden drop in temperature caused the admixture in the pipes to freeze. The customer directly informed the salesperson that the company's admixture did not contain antifreeze components. The customer's argument is that admixtures that cannot even protect themselves against freezing are definitely useless when added to concrete. This sounds reasonable. In fact, there is no inevitable causal relationship between the antifreeze of concrete and whether the admixture freezes or not. The principles of the two are different.

There is no wife in the wife cake, and antifreeze water-reducing agent cannot prevent yourself from being frozen.

The main principle that can ensure that the water-reducing agent does not freeze is that salt substances can lower the freezing point of water. Salts in the chemical sense are a broad term, and compounds formed by strong acids and strong bases can be called salts. Sodium chloride, which is edible salt, can be called salt. Sodium nitrate, calcium nitrate, and sodium nitrite are also salts in the chemical sense. Freezing is a purely physical phenomenon. And it is also related to the volume of storage. The admixture in the large jar can maintain a liquid state as long as the average daily temperature is not lower than the freezing point of freezing. If there is only a small amount left in the PPR pipe as mentioned above, ice can easily form once freezing temperatures are reached at night.