After the little fart spirits were upgraded to fart spirit laborers, their IQ increased significantly, and after the estimation of stones, their efficiency in logging and quarrying on weekdays was about three times that of ordinary fart spirit slaves, and they were simply serfs turned into masters, and suddenly changed from unqualified manual laborers to qualified workers.

It is precisely because of the existence of these fart laborers that Stone has the confidence to make a bold statement that he wants to build a fortress by himself, and the territory can now have so many upgraded laborers because of a second-level building [Junkyard].

This building is right next to the lumber yard and quarry, which is very nice. The greenskin features,The appearance is a large garbage mountain composed of all kinds of discarded materials and parts.,What the stone has to do is throw thirty fart slaves into it every month.,Let them roam freely in the sea of garbage.,Wait until these little guys play with garbage for a month.,You can be promoted to fart hard labor.,And with it, you can also make some messy gadgets.,Eh.。。 Although nothing has been found useful so far.

After more than four years of accumulation, there are about 1,500 fart spirits in the territory, and whether it is burning bricks and walls, they are the real main force.

Just do it, these little ones who love to toss on weekdays were quickly mobilized, and like Ayigunu, they had long been dissatisfied with the usual boring work, and as soon as they heard that there was something new to play, they were immediately excited and motivated.

With the technical guidance of Ayigunu, the stones were divided into several large groups according to the simplest streamlined operation mode, each responsible for their own work, some specialized in digging clay by the river, some specialized in making bricks with modules, and some specialized in burning sun-dried wood into charcoal, with a clear division of labor and higher efficiency.

Speaking of fuel, although there is still a large amount of coal in the warehouse, the stones are not ready to use them, after all, the territory does not produce coal, these high-quality fuels are still used when iron-making, and now it is enough to burn bricks with charcoal, anyway, the territory is mostly dry wood.

In just one week, there were several earth-taking fields, brick-making fields, and charcoal-burning fields along the valley river, and a large number of qualified red clay was dug up and piled up on the bank, waiting to be slowly dried and weathered by the sun, and a small part of them were made into bricks and placed aside.

At the same time, she also built a simple small earthen kiln with loess, and personally took a group of the most clever fart laborers to fire a batch of red bricks in the most primitive way.

Don't even think about it, these red bricks are of very poor quality, they will break almost as soon as they are knocked, and they must not be used to make city walls, and Ayigunu plans to use them to make the walls of the brick kiln for the time being, and then replace them when there are better quality bricks in the future.

She planned to build the simplest vertical kiln, and when the brick kiln was repaired and the clay was dried, the green bricks that met the lord's requirements should be burned.

Just as Ayigunu was about to use the most popular method of making adhesives to make brick kilns, she was stopped by stones, and what she never expected was that the green-skinned orc actually said that he would make a better adhesive himself.

The Dark Father is back! Hearing this news, Ayigunu didn't react for a long time, as a scholar, she dared to guarantee that whether it was a human or a dwarf, the adhesive used to build the wall was the same formula as herself, yellow mud and lime, this adhesive was simple to make, and the material was easy to find, but her lord actually said that there was a better way? This.. Is it true?

As a simple technology nerd, Ayigunu didn't think too much, and didn't doubt how the stone a green skin would know what a binder was, she only cared about the technology itself, and when she heard this, her eyes immediately lit up, waiting for the lord to show him what he said was a better binder.

Since the stone dares to go to the sea, it is naturally not untargeted, and there is more than one adhesive he knows.

First of all, the stucco used in the construction of the Great Wall, this kind of bonding masonry material is the crystallization of the wisdom of the ancient Chinese people, and the biggest difference between the formula of Ayigunu is the addition of glutinous rice juice, which makes the bonding effect extremely strong, but there are advantages and disadvantages, this adhesive is expensive, glutinous rice is not easy to obtain, and it is simply unrealistic for the current tribe.

The next thing that came to his mind was the triple soil, which is not difficult to make, the three materials, lime, clay, and river sand, are mixed in a certain proportion, but they are most suitable for directly making earth walls, and if they are used as a binder for masonry, the viscosity is not enough, and the gains outweigh the losses.

This doesn't work, that doesn't work, fortunately, in Shi's previous life, I read a lot of online articles on crossing farming, and I learned another kind of big killer that traversers must have, that is, cement.

The materials required to make cement are very simple, the stone remembers very clearly, nothing more than clay, lime, iron powder and gypsum, the process is not complicated, the first three are crushed into powder, and then mixed together, into the kiln to fire the mature material, and finally with the gypsum grinding fine, of which iron powder can not be added, gypsum as a retarder is not much.

The stone was going to write to Repp of Fetamburg asking him to help him buy some plaster, which was not uncommon in the market, and was used in large quantities by the aristocracy when decorating their houses, to paint the walls or level the ground, and many sculptures were made of plaster.

As for now, it's only the experimental stage anyway, and only clay and lime are needed.

Both of these materials are easy to do, the clay is ready-made, and the lime is a little more troublesome, but don't forget, now the tribe has a special quarry, and when the stones go around, they immediately find a lot of limestone, and he puts these gray rocks and charcoal in an earthen kiln, and burns them for a week, and then he can get quicklime.

Soon there was clay and lime, but the stone had a new problem, and that was firing.

He tried it with an earthen kiln, but it couldn't reach the temperature of firing cement at all, and the heat was not easy to control.

The first experiment failed, and Ayigunu, who had followed the stone from beginning to end, was discouraged, but soon discovered that her lord had come up with another plan.

At the current level of the territory, it will definitely not reach the level of firing cement in a short time, so he plans to use a simpler method to make a copycat version of cement to meet the construction requirements of the city wall, although the performance is a little worse, but it is definitely better than the existing binder, and when there are conditions in the future, it will be replaced with real cement.

This kind of earth-made cement is also called "artificial pozzolana cement".

Normal cement pays attention to two grinding and one burning, two grinding is to grind limestone and clay into fine powder, and the new method of stone preparation can be summarized as three grinding, it does not need to be burned, but it is necessary to add a grinding material into it, this material is the red brick that Ayigunu has just made.

The red bricks are crushed and ground into powder, mixed with clay lime, mixed with water, and the legendary cement is made!

Seeing how easily the stone could be made into a so-called high-grade binder, Ayigunu was skeptical, but when the orc lord used a copycat version of cement he made himself to build a wall of bricks, and when the cement dried, the Chaos Dwarf was stupid on the spot.

It turns out that this kind of soil method from the Chinese countryside is very effective, although it cannot be compared with real cement, but it is absolutely enough as a binder for the construction of city walls!

PS: Thanks to the "Book Friends 20170214135030192" for the 500 starting coins! Thanks to the 200 starting coins rewarded by "Qi Guo-Gongzi Jiang"! Thanks to the 100 starting coins rewarded by "Instant Day Sheep"!