Hearing An He's praise, Bai Qing and the others breathed a sigh of relief, this is what Li Xiaojiu personally confessed, although it can't be done with An He, but they, the main craftsmen, will inevitably be implicated, and they will be fined at least half a month. Pen, fun, pavilion www. biquge。 info

In fact, this is not really cement, because there is still one last process left. Anhe asked people to take the gypsum powder that had been ground yesterday, and then add about three percent of the gypsum powder in proportion, adding gypsum mainly to delay the hardening speed of cement, so as to facilitate the subsequent construction, until this time the first batch of cement in Datang was considered a real success.

"Bai Qing, you have people prepare water, sand and gravel, and dig a five-foot square pool on the ground, not more than half a foot deep."

Although the cement has been made, it is not yet the time to dedicate it to the emperor, at least it must be tested to see how the effect is, at least to be sure of it.

When Bai Qing heard An He's order, he immediately led people to take action, digging pits and carrying water, and after a while, they were all ready.

Bai Qing and those craftsmen only received orders from above to assist Anhe in firing cement, but as for what the cement was for, they didn't know at all, and they didn't say anything when Anhe came yesterday, so of course they didn't dare to ask. Looking at Anhe's posture now, he must be trying to test the effect of cement, so these craftsmen stretched out their heads one by one and waited to see, after all, everyone has curiosity.

In order to increase the strength of the concrete, Anhe also deliberately reduced the proportion of sand and gravel, if it was not for too little cement, Anhe even wanted to make sand and stone without adding sand and stone, and directly made it into a pure cement board.

After the cement slurry was poured into the pit, An He asked people to flatten it with wooden boards, and then spread a layer of straw, and told Bai Qing to sprinkle water from time to time, so that the concrete would not crack. Bai Qing was still very serious and wrote them down one by one.

When the concrete is really dry, it is estimated that it will take at least a week, and the craftsmen cannot wait for these seven days. So An He instructed Bai Qing to let the craftsmen burn the lime with all their strength in the past few days. He was also given the task of challenging patience, that is, he mixed cement with sand and gravel in different proportions, and then made concrete slabs like he had just done, and made a comparison to find the best ratio.

Bai Qing naturally gladly accepted the order. An He can hand over such an important thing to him, which shows his trust in himself, and this thing is not difficult, as long as he spends a little effort, anyone can do it, obviously it is the credit that An Hebai gave him, and after figuring out this, Bai Qing is even more grateful to An He.

After explaining the matter, there was nothing to do, but since he had entered the imperial city. Anhe didn't rush back home, first went to find Li Xiaojiu to report the progress of cement production, heard that the cement had been made, and now the effect was being tested, Li Xiaojiu was overjoyed, patted Anhe's shoulder and applauded, if it wasn't for Anhe's stopping, it is estimated that Li Xiaojiu would run to appreciate the pool of muddy cement slurry now.

In the next few days, An He did not forget the training of the soldiers in Nanshan, after all, it was also the work assigned by the emperor. If he can't achieve the expected goal, Li Xiaojiu can't spare himself, although An He is a modern person, he also knows that his current fate is closely linked to the Li Tang Dynasty. When he first crossed over, he just wanted to live this life plainly, but his destiny was inviolable, and by chance, he made him a court official of the fourth grade, and he got married. has his favorite wife Yu Chi Amin, he has nothing to do, he can't go back to Yongcheng County to be a civilian, but when he thinks that Yu Chi Amin will also stay away from his parents and family, and accompany him to go away, An An can't bear it, if he wants to live well in Chang'an, a place that is not easy to live, he knows that the emperor is his biggest backer, so he still cares about the work arranged by Li Xiaojiu.

However, fortunately, Wei Chi Xunyu is a very responsible person, plus Wei Chi Xunyu and Shi Yena, Huang Yuhu's assistance, plus the training routine there, just follow the original line, so the training is also done in an orderly manner under the auspices of the four people, An He goes to Zhongnanshan every three days to teach some military theory classes to the guards in training, and most of the training affairs are still handed over to the two brothers of Wei Chi, Shi Yena, and Huang Yuhu.

Seven days passed in a flash, and two major events took place in these seven days.

The first is that the Tibetan ambassador insulted the royal family, was caught by Jin Wuwei, and should have been sentenced to death, but he was friendly with the two countries, so he only killed a few of the Tubo ambassador's entourage, as for the ambassador Lu Dongzan himself, considering his special status in the Tibetan land, and afraid of causing a confrontation between the two armies, Li Xiaojiu ordered him to be expelled.

At the same time, Li Xiaojiu also wrote a sternly worded letter to Tubo Zanbu, reprimanding him in a very strong tone.

At the same time, he sent the general Xue Rengui to lead 30,000 elite soldiers into Jiannan Road to closely monitor the movements of the Tubo people.

The second thing is that the winemaking workshop jointly opened by Anhe, Li Daozong and Cheng Zhijie has officially started brewing. Originally, the brewing workshop would not start until the end of the month at the earliest, but since Anhe had made the cement out, he made the construction in the workshop simple, and the houses and roads would be temporarily replaced, and when the cement came out, it would be replaced with cement, which was much stronger than the masonry and civil engineering structure.

The yard that burned the cement was officially set aside by Yuwen Hu to make a cement workshop, and Bai Qing was fully responsible, Bai Qing would go to Anhe Mansion every morning to report all the matters of the cement workshop, of course, the condensation of cement is the focus of the report, and before dawn today, Bai Qing came to report that the cement had finally condensed into strong and durable concrete.

When An He heard the news, he immediately collapsed from the bed, got dressed as quickly as he could, went to the front hall to find Bai Qing, and the two came to the prison together.

In the courtyard of the cement workshop, in addition to the cement board that An He personally supervised, there were also cement slabs made by Bai Qing's commander later, and several of them were almost dry. The first cement slab was already surrounded by craftsmen, and everyone touched the cement slab with their hands from time to time and discussed something in a whisper.

"Hurry up and get out of the way, Anzhonglang is coming!"

The attention of these craftsmen was attracted by the cement slab under them, and they didn't even notice the arrival of An He and Bai Qing, and directly reminded Bai Qing, which made them quickly get out of the way.

An He smiled and nodded to the craftsmen, and then walked quickly to the cement slab, the straw on it had been swept clean, revealing a very flat cement slab. An He stepped on it with his foot and found that it had indeed condensed.

"Come on, dig out the cement slab!"

Ann and excitedly ordered. Immediately, craftsmen who had been prepared for a long time stepped forward to excavate, and in a short time, a half-foot-thick cement slab was dug out and stood up with sticks supported by the craftsmen.

"General An Zhonglang, this cement is really a strange thing, who would have thought that just after calcining with a few common materials, it can actually bond gravel and sand, and it is extremely hard, even if it is not as good as marble, it is estimated that it is almost the same."

Bai Qing tapped his fingers on the cement slab and said with admiration.

"Well, it's not hard or not, you have to try it to know, go get a sledgehammer!"

An He will not be confused by the appearance of this cement board, he believes that only practice is the only criterion to test the truth, to know whether the cement board is strong? It's simple, just hit it with a hammer a few times.

After a while, a craftsman brought a sledgehammer, the hammer head was half the size of a watermelon, An He took it and tried it, it felt okay, and then picked it up and smashed it on the cement slab.

"Bah~" With a muffled sound, An He only felt that his hands were numb, and his arms were also faintly painful, and then looked at the smashed cement slab, but only a few pieces of debris flew out, smashing out a shallow dent.

"Hiss~, it's so sturdy!"

The craftsmen around them all gasped and exclaimed in unison. (To be continued.) )