Agriculture Idol

Chapter 105 Medium Fiber Bricks

The dirt was done, but new problems followed.

At the end of October, the weather was getting cooler, and it was the turn of Li Chengxin's plan for Geyue Entertainment's live broadcast.

A group of people from the live broadcast group went up to the top floor of the Geyue Entertainment Building, and they could see the soil in blue plastic buckets neatly placed on the top floor platform from a distance.

"How should I put it...Put soil on the concrete floor, and I suddenly feel familiar with this place. When I first came here, I felt that the roof of the building was empty and meaningless." Li Chengxin said to Looking at the camera and said.

However, soon, Li Chengxin discovered a new problem.

"Ah! This soil is so icy!"

"Huh? Really?" Zhou Hao also knelt down and touched the dirt in the bucket, "It's really cold!"

"Can plants grown in this soil still germinate?"

It is normal for Li Chengxin to worry. For plants, when the soil temperature reaches a certain standard, plant seeds can germinate.

The reason why the soil turns to ice is naturally that the cool air from the cement floor penetrates into the soil.

Not only that, but on the top of the nearly 200-meter-high Geyue Building, the cold wind whizzed past without any shelter.

In this case, their original plan of using wooden barrels as flowerpots will have to be changed, because the soil may become cooler and cooler.

"It seems that we still have to make a flower bed!" Li Chengxin turned around and went to discuss the solution with the master in the maintenance department.

"Otherwise, use medium-fiber bricks." This is the plan given by the master of the maintenance department.

Simply put, MDF bricks are bricks made of wood.

Now on the market, there are already waterproof medium-fiber bricks specially used for outdoor use.

The biggest advantage of wooden medium-fiber bricks is that they are light, and the weight is only about one-fifth of ordinary red bricks.

Another feature is that because the raw material is wood, it dissipates heat slowly and stores heat easily.

In order to explain clearly to the many netizens who sent question marks in the live broadcast room, the master of the maintenance department directly took the live broadcast team to a cargo side door of Geyue Entertainment Building.

"This flower is blooming really well!" Li Chengxin immediately saw an unknown pink flower planted on the ground next to the guard room.

The master of the maintenance department said hello to the doorman: "These flowers are planted by the doorman using medium-fiber bricks as flowerpots when he is free."

Li Chengxin took a closer look, and found that the square "flower pot" was actually surrounded by a few bricks that were not stone bricks.

I went to touch the soil in the brick pot again: "The soil is so warm, no wonder these flowers are still blooming."

Seeing that the star of this company was interested in his flower pots, the guard also came to watch. After thinking about it, he went to lift up a flower pot: "This flower pot can not only grow flowers, but also raise earthworms."

I saw some scattered soil on the ground under the flower pot, and earthworms were crawling in it.

"Earthworms like warm soil, and this flowerpot made of medium-fiber bricks has very good thermal insulation performance. In this season, the soil in the pot can still be 15 to 25 degrees. Earthworms can feel that this place is very warm, so they gather here .” The guard explained.

Li Chengxin's eyes lit up: "Then put this on the roof, will it not only keep the soil warm, but also attract all kinds of insects?"

Ma Bo, an intern with a background in biology, was also present: "Yes, warm soil is also a good place for fireflies to breed."

"Then where can we find medium fiber bricks?"

Following Li Chengxin's questions and the wishes of netizens, the program director quickly contacted a MDF factory in the suburbs of Lanhai City, and the live broadcast team went to the suburban factory in two minivans issued by the company.

Fortunately, it was still working hours, and the live broadcast team arrived at the MDF factory without encountering a traffic jam, one of Lanhai City's special products.

On the way, Li Chengxin also learned that MDF is one of the three major man-made panels. Its scientific name is medium density fiberboard. In China, medium density fiberboard is made from agricultural leftovers or thinning wood or wood leftovers. The main raw materials are wood fiber, resin glue, etc.After heat grinding, drying, gluing, paving, hot pressing, post-processing, and sanding, it is an environmentally friendly furniture and building material substitute for logs. Its main advantages are that it is cheaper than logs, easy to process, and has uniform material. It has good physical properties and can be waterproof and moisture-proof after adding paraffin wax and other items.

Although it is said to be a factory for making MDF, it is actually the largest timber factory in Lanhai City. The yard in front of the timber factory is full of various types of timber.

In addition, when approaching the wood factory, Li Chengxin and the others first smelled the smell of wood.

The factory manager came out to greet them in person and obtained the qualification to be on camera.

He first talked about the history of the lumber factory, and then brought the visitor into the lumber warehouse.

"Wow! So much wood!" Since there are all kinds of logs and cut boards in sight.

"Our factory produces more than 50 kinds of boards, including cypress, pine, camphor and so on." The factory manager pointed to a board standing in the middle of the warehouse, "That is a fir board with a tree age of more than 300 years, which is almost the same as that of our factory. The most expensive piece of board in the world."

Li Chengxin learned on the way here that many ordinary timber factories use square timber or man-made panels for construction. However, many high-end restaurants in the business district of Lanhai City, such as Japanese sushi restaurants and French restaurants, are not interested in large logs. The requirements are very high. Only this factory has the way to purchase these large logs.

Of course, with such a large processing site, there must be a lot of scraps left over.

So they also make their own wood-based panels by the way, reusing the waste.

"That pile is the waste of Chinese fir. There are more hollows in the wood of Chinese fir. This hollow structure can store air, so its thermal insulation effect is better."

After understanding the purpose of Li Chengxin and others' visit, the factory director began to recommend several models to them based on the characteristics of the wood.

"If you use fir to make medium-fiber bricks, it should be able to meet your needs."

Seeing that Li Chengxin and the others were confused, the factory manager simply helped them make a decision, called a few small workers from the factory, and directly moved 200 kilograms of fir waste to the processing workshop.

Li Chengxin and the others followed. Before entering the processing workshop, everyone was required to wear dust masks, and the staff with long hair were also required to tie their hair up.

Then Li Chengxin and their live broadcast did not use Li Chengxin anymore, because the noise in the processing workshop had made the microphone meaningless.

So a group of netizens watched the small workers put the fir waste into the 800-rpm shredder, which produced wood chips of about 5 mm.

"The finer the wood particles, the denser and stronger the final pressed board will be." The microphone finally recorded the roar of the factory manager.

Put the wood chips into the mixer, then add special adhesives and other chemical reagents, after mixing evenly, put the mixture into a special mold.

Next, the filled mold is sent into a press, 300 tons of pressure are applied, and when it is taken out, it becomes a steaming MDF.

Li Chengxin went over and picked up a piece of wood, weighed it and said, "It's so light!"

A piece of fir MDF with a size of about 2 square meters weighs only 5 kilograms.

According to Li Chengxin's request, the customized boards have two thicknesses, and the thicker boards will be cut into the size of bricks to be used as the edge of the future roof flower bed.There is also a thinner board that will be used as a backing for flower beds.

　The knowledge about bricks comes from "Scientific Interesting Bar". In addition to medium-fiber bricks made of pressed wood chips, this book also introduces many other new building materials. When I have time, I bought the e-book and included an extra chapter.

　　
　
(End of this chapter)