After getting 100,000 yuan, Feng Xiaobao was not in a hurry to build the city, he thought twice and decided to launch cement!

Cement!

The star product of the construction industry, the most basic raw material, is not one!

Without cement, long roads, tall buildings, you don't have to think about it!

If he didn't invent cement before, Feng Xiaobao was afraid of robbing it, afraid of robbing it for high-ranking officials and clans, but now it's different, he is in the emperor's heart, and he will get back 300,000 yuan when he goes to the capital, no one can do it!

Consciously full-fledged, Feng Xiaobao started refining cement!

The concept of cement is very simple, and Feng Xiaobao, who was an architect in later generations, knew very well: limestone and clay were ground into flour, and lime and clay were calcined again and again in three to one. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 info Use clinker and the slag left after ironmaking to grind together, and add an appropriate amount of gypsum to make cement.

It won't be so simple, first look for minerals.

Feng Xiaobao specially gathered a group of experienced clay craftsmen, craftsmen and clever boys to teach them to look for lime, clay and gypsum mines around Tonghuang County.

Limestone: The main ingredient of limestone is calcium carbonate, which is very widely distributed and easy to find, Feng Xiaobao was also lucky to find a clay mine, which is also equivalent to limestone, and its nature is very soft and easy to crush,

The selection of clay: clay is distributed in various places, Feng Xiaobao taught everyone to use the "mud strip method", the mud is wet with water, put it on the palm, and rub it into a fine mud strip with fingers, when the diameter of the mud strip is slightly thicker than the sewing needle, it proves that the clay content is a lot.

These methods are simple and easy to implement, and can be tested anytime and anywhere, making it easy to find the source of minerals.

Gypsum: This mineral is also distributed in the Hehuang area.

Iron slag, you can find the scum of the soil method of iron training, Feng Xiaobao himself found two small iron mines, with the help of Liangzhou Tang family technicians, the soil method of iron smelting, because of the inferior quality of iron ore, the iron smelted can only be used to make ordinary farm tools.

Once the minerals are available, they are collected and prepared to produce cement.

The simplest cement is to add a little white ash to the scrap iron slag, add a small amount of water and stir it to be used as concrete, but the strength is not very high, but the cost of it is low, and it is best to use it as a rural paving.

The second method is to mix cinder, quicklime and gypsum, which is soil cement.

Cinders are collected, impurities are removed, washed and dried, ground finely, and filtered through a sieve, with a content of more than 75%.

Grinding can be used to grind finely, driven by animal power, and a group of donkeys and mules drive the stone grinding powder, which is quite spectacular.

Then the hydraulic steel mill transported from the Tangjia Iron Works in Liangzhou was further used, which had a greater capacity, a large output, and too little damage to human and animal dust.

Take 20%-25% of quicklime.

Then there is the natural gypsum is finely crushed, heated to 130-180 degrees in an iron pot and fried to yellow-gray, and the cement solidifies faster when it is there.

The three are dried with a fire kang, and then ground into powder, that is, cement, which is sealed in a clay pot and stored for later use. There is no way, there is no cement paper, the cement is already heavy, and the weight in the clay tank is heavy, so it is very difficult to transport.

Such cement improves its strength quickly in high temperature weather, has good corrosion resistance, and can be used in dirty places.

The production process of real cement can generally be divided into three processes: raw meal preparation, clinker calcination and cement making, and the whole production process can be summarized as "two grinding and one burning", which is already familiar to Feng Xiaobao.

The raw meal grinding adopts a hydraulic mill, and the huge water turbine drives the steel mill to crush all kinds of raw meal through a series of gear occlusion.

Calcined clinker was instructed by Feng Xiaobao to build a huge vertical kiln compared to the ancients, and made 20-90 mm round balls of raw meal and fuel, and heated to obtain clinker.

Then the cooked powder is also ground to grind, ground into powder, and put it into a clay pot, which is the No. A cement. (Non-professional literature, not detailed)

……

The whole process is not simple, just say ball-making, the ball should not be big, the method is manual ball-making at first, will match the good raw material, add the appropriate water and mud, make a ball by hand, it is conceivable, the efficiency is low and occupies manpower, if lime is used as raw material, it will burn the human hands.

Therefore, the use of a kind of wooden ball machine taught by Feng Xiaobao, the main part is the raw material box, small bucket, the use of small spoons and balls, with foot pedal transmission, a bit of mechanized taste.

……

The huge vertical kiln burned, and the black smoke rushed straight into the sky, and at that moment, Feng Xiaobao's gaze was far-reaching!

The cement that is made... Well, the content of raw materials is not accurate at all, and the cement that comes out in this way can only be used.

Feng Xiaobao used the cement produced by the vertical kiln to pave the central axis avenue, which shocked the people of Tonghuang County, such a hard stone road!

Coupled with the iron frame net, such a stone cement road is extremely strong...

With cement, how can there be less red bricks and green bricks, solid clay bricks, the clay with water (when too dry) and cinder (too sticky) are mixed evenly, and the bricks are made to dry.

Then manually row the kiln, arrange the brick blanks, cap them, and burn them artificially, and when they are burned to maturity, they are cooled with water from top to bottom, and green bricks are generated by water vapor, while red bricks are dry burned to the end without adding water.

With bricks and cement, and steel bars brought from Liangzhou, Feng Xiaobao began to build his Brezhnev building.

Along a corridor with single-door suites on either side (some out-of-town buildings have suites on one side and can be used for street fights on the other). Each suite has its own kitchen and bath with balcony.

In fact, it is not beautiful, but there is a lack of building materials, and the problem of having it is a priority.

Feng Xiaobao didn't think it looked good, but others didn't think so, Yang Chengxian and Cheng Boxi admired him day by day, while the Hu people regarded him as a god.

All the gods who can't make Tonghuang County erect tall and sturdy buildings in a short period of time, each building is more than five floors, like a behemoth, which makes people feel awe.

Ancient buildings are not easy, why are they all wooden structures, bricks are difficult to fire, stones are difficult to take, the key is that there is no cement!

Feng Xiaobao's feeling to the soldiers and civilians of Tonghuang County is really amazing, like a celestial being, able to bring them something completely unimaginable.

But No. 1 cement, now commonly used in country roads and buildings, the cost is not high, and it is very easy to refine.

Not to mention the cement of No. A, without which there would be no monstrous buildings.

Cement, concrete, and steel structures were added to Datang's technology tree, and the foundation was laid.

At the same time, a construction engineering company and an architectural research institute were established, and two brands of people and horses were established, and the thriving research and development of the construction industry began, and Feng Xiaobao was regarded as the grandfather.

However, Feng Xiaobao did not have much chance to enjoy the cheers of the people, and he had already led his men and horses to start a long armed parade.

Feng Xiaobao determined his role in life: his main profession was murder and arson, and his secondary profession was architect.

Destroy everything, then rebuild everything! (To be continued.) )