Yang Heng did not expect that some ministers came very quickly, and the earliest ones were naturally those old guys, Cheng Yaojing, and old silly veterans.

"I said, my eldest nephew, you don't have much copper coins in our family. Otherwise, you can support my family with a hundred handfuls and ten bags?" This is Cheng Yaojing, and he is the most shameless.

"It is impossible to give away cement. This is a purchase restriction. It not only limits the purchase, but also requires registration of the usage. If you buy ten bags and only use nine and a half bags, you still need to transport the rest back to the cement factory, otherwise your Majesty will blame you." Yang Heng was telling a joke to the old fairy, but he suddenly thought that this is not a joke. What is this? Cement, once discovered by a foreign country, then this is a strategic resource that harms the Tang Dynasty. Building cities and building some military facilities is the fastest and most sturdy.

"Purchase restrictions, purchase restrictions, no, I want to go to the palace immediately and report to Your Majesty." Yang Heng didn't even bother with the old fairy and turned around and wanted to leave. "Nephew, are you? Oh, I want to enter the palace too. Such important materials are only used to make these things. Let's go and go to the palace together." The old fairy also reacted. In fact, he was reminded by Yang Heng's words. If it was Li Er's order, he only needed to abide by it. But Yang Heng's words, he needed to turn his mind a few times to prevent Yang Heng from getting trapped. In fact, Yang Heng didn't like to get trapped, but those who liked to get trapped were these old guys. This is a typical villain's heart.

"Your Majesty, I have this report." Seeing the old fairy grab the lead, Yang Heng had to bow and stand aside, "You two are you, how could you come together to see me? Is there any flaw in the biogas pool? Or."

"Your Majesty. I suggest that the project of the biogas tank should be suspended and the purpose of cement should be re-identified. I believe that cement is more than this one." "Oh, Cheng Aiqing, what is the use of this cement? Tell me?" Li Er looked at Cheng Yaojin with interest. When did this old killer pass by so well? Did the sun come out from the west today?

"Your Majesty, look. This is a piece of cement residue I picked up from the corner of the wall of Prince Yang's house. I wanted to break it off from the wall of his house, but with my strength, I didn't break it off. Then I found such a piece of residue." Yang Heng saw that when did this old fairy pick up the piece of residue under the wall? This piece of residue was half the size of a fist. Because of the bricklayer, they didn't know much about cement, so they wasted a lot of cement. They were all such pieces of residue, and Yang Heng was too lazy to let them clean it up. It was just spread by the wall, buried with soil and then leveled it on the ground. Somehow, this old fairy picked it out.

"Let me see, this is actually stronger than stone. Yang Heng, tell me, is cement so strong? What is its use?" "Your Majesty, cement is indeed so strong, and as long as it matches a certain amount of sand or even gravel, it will be quite strong within one day after use. It is the best building material for building cities and paving roads, and even sewers. Building houses are all very good materials. Unfortunately, the output of the cement plant in my home is still low now, so it can only be used to build some biogas pools. Even if the biogas pool is set, the cement output cannot keep up with it." Yang Heng said with some regret.

"The output is small, but I found that the cement used in your home is all used. If your words are not true, I will punish you for deceiving the king." "Yes, Your Majesty, I will punish this boy for deceiving the king. If there is such a good thing, I just don't use it. But I just build a biogas pool. It's so expensive. I feel that I can't bear it." Cheng Yaojing said igniting.

"I said General Cheng, that's not what he said. Do you know the benefits of this biogas tank? Do you know that besides these things on your eyes, do you know the other benefits?"

"What benefits are just boiling water and lighting the lamp. Also, I just found that the toilet is good, but it would take a major renovation of the entire yard, and even burn all the fertilizer." Cheng Yaojing said indifferently.

"General Cheng, you are sure to burn the fertilizer. First of all, your home will be very clean. You should know that when using a toilet at home, the smell is very big, and this biogas tank has no smell. Even if it has an odor, it will smell like rotten eggs occasionally. However, the fertilizer has been increased many times. Moreover, if the sludge and sludge are fertilized, some insects will be eliminated. This sludge and sludge are also able to improve the soil and increase grain production. Do you think there is any benefit?" Yang Heng said to Cheng Yaojing very angrily.

"This is true, why didn't you say it sooner? Your Majesty, do you know? Otherwise, I will punish this kid for another crime." The fairy Cheng began to make trouble unreasonable. This might be his way of being a minister. Perhaps his intention was, Your Majesty, although this kid is your son-in-law, you still need the reward you deserve, and you can't just leave it alone.

"Okay, don't worry about this slag and liquid. Yang Heng, now you send a few bags of cement into the palace. By the way, what else is needed? It's sand and stones, right? You can also bring these in together. Come and send them to the Minister of War, Minister of Works, and..." Li Er's series of orders were issued to make people visit the role of cement.

Yang Heng was waiting for this order. When Li Er's order was issued, he quickly left the palace and then entered the palace with several trucks of cement stones. However, for safety, these things were stabbed by the guards with long spears many times before entering the palace, which directly led to a lot of cement powder sprinkling along the way. This cement powder actually led to a serious and heartbreaking figure.

"Okay, Yang Heng is here, let's start now, Yang Heng, according to your design." When Yang Heng arrived, a group of veterans had already been waiting here, and were even asking each other what was going on when the emperor asked them to come. The only thing they could know was Cheng Yaojing. If they wanted to ask something from Cheng Yaojing, it was basically the sun that was coming out from the west, so they didn't ask Cheng Yaojing directly, making Cheng Yaojing feel boring there.

When Cheng Yaojing was about to approach him, Yang Heng happened to arrive, "Boy, why are you here so soon?" Cheng Yaojing asked Yang Heng softly, even with a little reproach, what, if I come soon, you have an objection. Then he looked at the side and realized that he was actually excluded from the circle.

"Hello, all the old generals, this is cement," "Hahahaha, it's so lively, what are you doing?" "I've seen the Supreme Emperor." A dry laugh came from outside, followed by a eunuch's voice, what, the Supreme Emperor is coming, Yang Heng felt a little surprised. He has been in this world for several years. Although Li Yuan was the emperor when he first came, he has not heard any movement since Li Er became emperor. According to Yang Heng's previous life, he is busy making children now, but why did he come out today? In fact, Li Yuan is not not coming out, but he is not revealed in the world. Today, he actually attracted cement powder. It can be seen that new things are indeed attractive.

"I have met the father (the emperor)." Everyone bowed to Li Yuan at the same time, "Okay, okay, don't be too polite, this is my grandson-in-law, why did you make this thing? You continue, you continue, I'm just curious, come and take a look."

"Yang Heng, continue." "You guys come here, take a shovel, and you go and bring water." What, you do it yourself. There were guards next to you, so Yang Heng directly directed the guards to start the work of mixing cement, mixing sand, mixing stones, pouring cement, and then digging a hole in the middle and pouring water in. Then Yang Heng glanced around and found that this place was in the courtyard of a hall, which happened to be a place to settle down.
Chapter completed!