Wei Renshi originally saw Jiao Haiqing's appearance, and he was a little dumbfounded. was about to say something, but suddenly out of the corner of his eye, he caught a glimpse of the gray of a bucket cart, and his body was shocked, and he hurriedly strode to the front and looked into the wooden cart.

When he saw it, he was shocked again, and he hurriedly looked down carefully, grabbed a handful of it with one hand and rubbed it in his hand, and then turned his head to look at the laborer in the cart.

"This thing...... Where did it come from? Wei Renshi asked.

The laborer hadn't seen Wei Renshi, but he had seen Jiao Haiqing, so he subconsciously looked at him.

Jiao Haiqing looked at the contents and replied to himself: "This is the waste material that burns when the lime stone is burned." ”

Wei Renshi then said to him: "Who is in charge of the lime-burning kiln?" Hurry up and call over. ”

Although Jiao Haiqing didn't know why, he still said to the worker: "Did you hear that?" You don't care about this for now, go and call the old kiln head to come over. ”

The laborer hurried to call for someone.

After a while, the laborer came with a hunchbacked old man.

"Ouch, this Lang Jun, what are you doing with this thing, don't dirty your hands with the dirty things left over from the ashes!" The old kiln head walked closer and saw Wei Renshi grab a handful of gray dirt, so he hurriedly stepped forward and said.

Although he didn't recognize Wei Renshi, he had heard Jiao Haiqing say that this coal yard was shared by him and another Lang Jun. Na Langjun is a prodigy, not very old.

It was because he saw Wei Renshi, although he didn't recognize it, but he guessed that it might be the owner.

So he said so eagerly.

Wei Renshi looked at the old kiln head strangely, didn't speak, just turned his head and said to Gou Er: "Second Brother Gou, hurry up and fetch a bucket of water and bring it over!" ”

Gou Er thought that Wei Renshi wanted to wash his hands, so he immediately ran over to the river and brought a bucket of water.

saw Wei Renshi snatch the handlebar from the hands of the laborers, and poured all the ashes on the ground with all his strength.

Everyone was naturally puzzled, but Wei Renshi said to the laborer again: "You go and pull some sand and gravel, just filter it once or twice that is not thick or fine!" Bring in another shovel. ”

Seeing Wei Renshi's solemn expression, where did the laborer dare to slack off, he hurriedly obeyed the order and ran to pull half a bucket of sand over.

Wei Renshi picked up the shovel and was about to shovel the sand and gravel, and shoveled it a few times, but found that it was too laborious. So he gave the shovel to Dog Er, and instructed him to shovel the gravel and mix it with the ashes on the ground, dig a pit in the middle, and pour water into the pit, and mix the ashes mixed with the water around the sand, and mix them into a thick pile.

Wei Ren used a shovel to slap the pile into a square, then threw down the shovel, and waited on the side without speaking.

When everyone saw that his face was solemn, they didn't dare to speak easily.

Only Jiao Haiqing asked, "Wei Langjun, what are you doing?" ”

"Wait and see." Wei Renshi spoke to him.

Although it was winter, the sun was still quite warm at noon, and after a while, the pile of squares was a little deformed, but it also solidified.

Wei Renshi went up and stepped on it with his foot, but there was no response. I increased my strength and twisted it hard a few times, and it was crumpled into a pile.

"Old kiln head!" Wei Renshi stared at the stone slab on the ground: "How did you burn the ashes just now?" ”

"Huh?" The old kiln head was very confused, so he looked at Wei Renshi blankly: "Lang Jun, it was burned when the limestone was burned, and it was the dirty thing in the limestone." But in any lime-burning kiln, if you accidentally burn too much, you can burn this thing, but if the limestone is burned into wasteland, it will not be used. ”

"No!" Wei Renshi shook his head: "Old kiln head, you go over, go to the account office here to receive fifty yuan, it is for you!" ”

"Huh?!" The old kiln is a little messy.

Jiao Haiqing was also messy. However, he was clever in the end, so he smiled and said: "Old kiln head, you don't think much about it." The prize is given to you, and you take it. It's just this thing, but you can't say it to outsiders. ”

"That's nature." Although the old kiln head didn't know why Wei Renshi attached so much importance to this waste, since he heard Jiao Haiqing say so, he went down happily.

After they were all gone, Jiao Haiqing looked at the messy thing on the ground and asked, "Is this ...... Wei Langjun, could it be this scrap ......"

Wei Renshi said to him: "Brother Haiqing, you can build a new kiln here and burn this thing!" It's not that the limestone is burned into wasteland, it's that the treasure is burned! Cement! This thing is called cement! It's a baby, a real baby! ”

"What?!" Jiao Haiqing was stunned.

"It's just not right, there's something missing in there." Wei Renshi said: "It may be that there is no clay...... In short, this thing must not be passed on! Otherwise, you will be worried about your life! ”

"What?!" Jiao Haiqing can only say this one word.

Fear for your life?! Jiao Haiqing looked at the things on the ground and changed his face.

Wei Renshi continued: "I originally planned to leave in a few days, so that after returning to Chang'an, my aunt and Xi'er will have more time to adapt." But now, I'm afraid it's going to change. Brother Haiqing, can this old kiln head be trusted? ”

Jiao Haiqing nodded and said, "It was transferred from another kiln in my house, and I have been following Aya for many years, so I can trust it." ”

"Okay, then you can try to find some clay." Wei Renshi nodded and said.

Jiao Haiqing didn't know Wei Renshi's plan, but since Wei Renshi said so, he naturally cooperated with it.

Wei Ren actually squatted down to study the waste.

He remembers that cement raw meal was the product of a mixture of several things. Naturally, there is limestone in it - damn it, I know that there is a lot of limestone in Fuchang, but I didn't remember earlier that this limestone is the main raw material for firing cement.

Limestone, clay, and a few other things, I don't think I can find them right now.

Still, it's enough to give it a try.

If it could really be burned to produce cement, even if it was far less quality than in later generations, it would definitely be extremely advanced in this era.

With cement, you can pave roads, you can build walls, you can use it to build river embankments, city walls......

That would go a long way.

Jiao Haiqing turned out to be a man of action, and after hearing Wei Renshi say this, he was ready to go over to find the old kiln head in person. If Fuchang could get clay there, he would definitely know best.

Wei Renshi instructed him to do so as soon as possible, and then left the coal yard and went to Fuchang County.

"Childe, let's go directly to the county office?" Dog Er asked as he drove the carriage.

Wei Renshi nodded and said, "Well, go directly to the county office." I guess the prefectural order is waiting. ”