In terms of construction, there is a huge gap between Liao and Western Xia, and the Northern Song Dynasty, which can be seen from the degree of weapons, the iron harrier of Western Xia, almost a set of weapons and armor per person, if there is, it is a member of the iron harrier, if not, it is not, although there are some supplements, but there are very few every year, which is also the fundamental reason why the iron harrier rarely enters the battle, that is, it is afraid that after large-scale damage, it cannot be recovered. Pen % fun % Pavilion www.biquge.info

Compared with Western Xia, the Liao State is a little stronger, and the Tielin Army also has a scale of tens of thousands, plus a slightly inferior cavalry force, it can be said that in terms of numbers, it can be said that it crushes Western Xia, but compared with the 800,000 forbidden army of the Northern Song Dynasty and at least 500,000 heavy armor, it is not a little bit worse.

After spending a huge price, they finally knew that their current level was no way, and after spending a huge price and not being able to reproduce it, the two countries almost unanimously adopted the usual method of espionage and theft.

This is also their usual method, some less important information of the Northern Song Dynasty was stolen in this way, but this time, they regarded it as the highest priority, and stealing all the useful information and building secrets of the fortress became the highest task of the two countries.

When Zhao Xin sent cement and forts, he specifically mentioned the importance of cement and forts, coupled with the understanding of Sun Ji and some military generals, especially later, after a little attempt in Western Xia, it has already played an important role, and cement has also become the most important thing as a top secret.

The Northern Song Dynasty is higher than other feudal dynasties in terms of secrecy, iron and tea, etc., have always been controlled, although it can not be eliminated, but it is effective so that the Western Xia and Liao can not easily obtain weapons, the same is true of cement, after knowing the power of cement, the military personally controls the production of cement.

The military personally took care of it, specifically on an island in the middle of the lake, built a production base, to prevent leakage, the information about the cement still could not be concealed, and finally leaked out, the two sides launched a terrible dark war around the cement, countless spies, in order to fight and counter-fight, infiltration and reverse infiltration, died on the cement, cement is also in a magnificent record, become the artifact of the town.

At the beginning, under the guidance of the Imperial City Division, they found the wrong direction and put the target on the red bricks, the secrecy level of the red bricks is not as high as cement, but it is also quite level, in the confrontation again and again, in the secret battles again and again, in the end, under the release of the Imperial City Division, the Liao State and the Western Xia got the red bricks.

They thought that they could see through the secrets of the fortress, and the precarious situation in Western Xia could be stabilized, but after an attempt, it was useless, and the simple red bricks were indeed a little better than the green bricks, but the biggest advantage, productivity and cheapness, because the productivity level of the Liao State and the Western Xia could not be brought into play, and it was even inferior to the original green bricks.

After another twist and turn, they finally determined, it turned out that the key point was not bricks, but adhesives, in order to get the formula of cement, whether it was the Liao State or the Western Xia, a large number of people and spies were sent, spending millions of dollars every year, and the competition for cement has also become the key to the competition between the Imperial City Division and the intelligence agencies of the Western Xia of the Liao State.

A spy war around the fortress and cement began to emerge in the northeast of Asia in the 10th century, which is not seen in history, hidden in the dark, but a brilliant and fierce spy war, involving depth and breadth, and the investment is so large that even later generations cannot be compared.

Because of backwardness, so cruel, when people are facing the threat of death, they will burst out of unimaginable power, in the era of thermal weapons, may only be a slave to the country, most of which can be saved, because any victor will know that man is also the most basic tool of production.

But in the era of cold weapons, the same is the slave of the country, but in the history of the Chinese nation being occupied by foreign races, the tragic history of the Han people can not be repeated, from tens of millions to millions, reincarnation, the Yuan Dynasty has reached the extreme, with the peak of the Song Dynasty, a total population of more than 100 million, to the Yuan and Mongolian periods, there are only less than 9 million left, including a large number of northern Han people.

Once one side wins, it will bring about almost the result of extinction, which no one wants to accept.

Cement and fortresses were seen as the magic weapons of the Northern Song Dynasty to win, and they were also seen as possible applications by the Liao State and the Western Xia, once they added these to the original foundation, what would happen.

Countless spy war operations, royal shifts, and even young people with innocent family backgrounds and the heart of the monarchy were involved in this unprecedented spy war, as far as the Northern Song Dynasty was concerned, there were 200,000 people, of which the mortality rate was as high as 17%, and the disability rate was as high as 56%.

This is a later story, even Zhao Xin did not expect that this cement and red bricks, as well as the later fortress, will set off such a big wave in the entire East Asia, which almost changed the situation of the war, it turned out that the defense of the city, known as the most rigid, but also a long-term defense must lose tactics, suddenly became the most advanced tactics, the Northern Song Dynasty relied on the strong cement and fortress, for the first time in the battle, occupied an absolute advantage, began to transform the strong economy into the military, the weakest place in the Northern Song Dynasty, but became the strongest place.

At this moment, the whole world, the entire eastern part of Asia, did not realize that a terrible weapon was born in Miaojiazhuang, even Sun Ji and they were no exception, after they saw that this powder was a building material, they left, as long as 7 craftsmen, they used cement mortar according to Zhao Xin's request, turned this thing into a big stone pier, and then, also left.

The whole process, which was just a tea time, and even a little cement was left, which they brought and continued to wipe the stone pier, which looked smooth as one.

During dinner in the evening, Xue Yu passed by and came over to take a look, and said with some curiosity: "It looks good, I don't know if it's strong, or it's not bad to take it over and make a stove!" ”

Xue Yu was just joking, and Qu Yang next to him also laughed a few words, no one realized that at this time, they had ignored a world-wide artifact, but fortunately, it was Zhao Xin who knew all this best.

Zhao Xin came to see it at night and felt the speed of condensation, the Portland cement made according to ancient chemistry is not the kind of fast-setting cement in later generations, those limits can even be quickly condensed within 2 minutes, and it is mostly used for the construction of cement ships for flood control and plugging, it is impossible for him to do it for the time being, but ordinary cement, within 2 days, will still be condensed.

However, during this process, it is necessary to keep the water moist to prevent drying out and affecting the final strength.

In one night, the cement has been partially dried, no one will touch it, it is just a wooden pier in the courtyard of Zhao Xin's mansion, because the craftsman's craftsmanship is good, the whole has been wiped with cement, it looks smooth and clean, under Zhao Xin's instructions, it is slightly drenched with water four times a day, and then wait for 2 days.

If it is to build a house, or a load-bearing wall or something like that, it takes a long time, and these cement piers are no problem, 48 hours, which is quite strong enough.

On the third day, early in the morning, Zhao Xin walked to the front of the cement pier, and with him, there was Sun Ji, because of other things, Sun Ji really hadn't come to see this cement pier in the past few days.

This thing that Zhao Xin made is selling well at this moment, because it looks too strange, 100 yuan, it was mixed together, but it was combined into one, and his heart moved, is this really the material for building a house? Why does it look so much like a stone?

Zhao Xin didn't care how Sun Ji thought about it, in the past two days, the water has been poured well, not even after hot and cold, there is no so-called thermal expansion and contraction, the surface has been solidified, and it feels quite strong, maybe the internal stress has not completely diverged out, he has not yet reached the strongest strength of cement bonding, but it is enough to test.

"Sun Guard, come and see!" Zhao Xin pointed to the cement pier and said.

"Which brick and powder is this, it looks good, but I don't know how hard it is!" Sun Ji glanced at it and said disdainfully.

"Sun Zhiyu, don't you know if you try it!"

Zhao Xin turned his head to a servant and said, "Prepare a hammer for Guard Sun!" ”

Sun Ji looked at the stone pier with a little disdain, shook his head and said, "No, isn't it just a few bricks glued together?" ”

A pier like a farmer's earthen cultivation house, he casually separated, and without even waiting for the family to bring the hammer, he stepped forward and picked up the cement pier.

Dozens of catties of bricks and cement lumps, in Sun Ji's hands, as if there was nothing, Sun Ji used a little force, he obviously felt the difference, when he was on a mission, he also broke through the wall, the wall made of yellow mud could not resist his attack at all, a punch down, it was a big hole.

He didn't think about getting dusty like that, he just wanted to separate the bricks, and in his mind, the bricks that were just barely glued together seemed to be like stones, tightly combined, even if he had a thousand pounds of strength in his hands, it was difficult to break it without strength.

Sun Ji's heart sank, this material is so domineering, he added another strength, almost used all his strength, still can't do it, it seems that this is the original stone, glued together, but almost used the maximum strength, still can't separate this.

If it weren't for Zhao Xin, there was no need to lie to him, he even thought that Zhao Xin had changed a brick, even if he had the strength of a thousand catties, he could rely on hard work and directly smash the stone, but if he wanted to separate a rock, it was almost impossible, this cement pier would give him the feeling of a rock, which was also too strange, a thought rose from his heart, could it be that Zhao Xin really made something terrible again.