Chapter 397: Can it be strong without cement?

Han Cheng looked at the pile of bricks collapsing, sniffed his nose, then moved the bricks aside and continued with this seemingly impossible job.
There are not too many shortcuts to the skills at hand, only through constant trial and practice, a little bit to improve the proficiency.
He is also just an ordinary posterity, without any superpowers, so he has to try again and again, and learn lessons from the attempts, and then continue to try.
"Wow..."
Looking at the vaults finally joined together, Han Cheng had not had time to be happy, and these pieces of bricks collapsed again.
"Brother Cheng, get some mud and it won't collapse..."
Bai Xuemei, who stood by and watched for a while, finally couldn't help but speak.
She didn't understand why Brother Cheng only used bricks, instead of using some mixed mud as a binder as before when building walls, or simply using stronger cement.
In this way, only bricks are used to build a barrier, or it is vacant.
How can you not stand up!
Bai Xuemei and the others have never been in contact with these people, and they don't understand the truth in this. He has seen a master with good craftsmanship before, how can he use bricks to make an arch.
Don't glue a little thing, it will not be strong.
It seems that there is something involved in it. As a liberal arts student, he doesn't quite understand this, but he also understands that the principle is similar to eggshell.
Most people can't crush an egg with a thin and crisp shell.
The vault Han Cheng wants to build is similar to this.
There is no need to be lazy about stealing on this, forcibly using plant ash, cement or a vault condensed from mud. The internal structure of the vault is not in perfect condition. Such a vault does not have the load-bearing capacity.
And what Han Cheng is now preparing to build is a brick kiln, and it is the kind of kiln that requires people to enter the bricks to put the bricks in and go out.
How can you not take it seriously?
Otherwise, people are working in the kiln, and then the brick kiln thumps and collapses, then...
Han Cheng wiped the sweat on his forehead, stood up straight and rested, and smiled and said to Bai Xuemei: "This can't be used with mud for the time being. After I have built them up, I will use mud... It's been a while. ……"
Bai Xuemei blinked her eyes, she collapsed as soon as she let it go. Is it also good?
However, she didn't say any more. Since Brother Cheng said so, he must have his reason, and he must be able to build these without mud.
After standing here and watching for a while, she left here and went to pick mulberry leaves with the other members of the tribe.
Silkworms have already started to shed their skins. After they have shed their skins, they will eat a lot of mulberry leaves.
Han Cheng also went on to continue his own continuous collapse of the barrier.
During this period, someone came over more than once and offered him a solution like Bai Xuemei, but he smiled and refused.
The Zhaozhou Bridge can be built successfully with such a long span and can stand for a thousand years without falling. I am now building an arch with a span of only one meter, and I can't fix it without reason...
The arch made without mud bonding is really stronger than the one used?
Everyone in the Qingque tribe who knew what the son wanted to do was puzzled. At the same time, they were looking forward to what the son he said would be revealed and let them open their eyes.
The leader of the donkey tribe, who was addicted to business, came again with the goods exchanged by the tribe. He couldn't understand the things that appeared outside the Qingque tribe.
The people of this tribe don't see how they go hunting, they are scratching in the soil all day, not doing their jobs properly... The key is that such a tribe can cross over as much as possible, which is really uncomfortable.
Especially that son of God, who kept building up things with regular stones, and still collapsed continuously, having collapsed four times as soon as he saw it.
This... Is this really the son of God who was worshipped by this powerful tribe?
The leader of the donkey tribe took the things after the exchange and spit out along the way.
It's not without reason that he complained about it. Originally, he only needed to exchange the fur for pottery. Now the salt is not free, and the same fur needs to be replaced by a lot less.
Are you going to make deals with other tribes, do you want more things on the salt?
The leader of the donkey tribe thought this way...
Not long after the leader of the donkey tribe left, Han Cheng finally finished the real vault.
The vault, which was all built with dry bricks, did not collapse as before, but stood there quietly with an arc.
It's really stuck in cement.
The members of the Qingque tribe who saw this scene looked surprised at this completely unreasonable thing.
The thing that surprised them was the latter. After waiting for a while, the son put a foot on it.
This makes everyone very worried. It is already very difficult for such a thing to be able to support it without collapsing. Why do you still step on it with your feet?
However, the expected crash did not appear. After the child's feet were placed on it, the thing that seemed to be unable to carry any weight and would collapse at any time was actually safe.
"Brother Cheng!"
After discovering that Han Cheng had the whole intention of going up to the top of the vault, Bai Xuemei screamed worriedly.
Although this vault is not high, it can't fall from above, but it is made of bricks, it is very likely to be squeezed by the collapsed vault.
Han Cheng smiled at her, then stood up.
Contrary to everyone's expectations, this seemingly unsturdy, dry brick vault with an overhead vault in the middle could bear the weight of the child, and there was no sign of collapse.
Everyone looked at this miraculous scene and couldn't help but wonder in secret.
Han Cheng stood on it for a while, tentatively walked for a while, and found that the vault was very strong, he began to tentatively jump on it gently, and then continued to increase his strength, and then jumped down with all his strength. There was no sign of collapse, Han Cheng couldn't help smiling.
The hard work paid off, and I managed to get this thing out after all!
Everyone is very curious about how this unsturdy roof can withstand so much power~EbookFREE.me~ After consulting Han Cheng's opinion, they also started to move up one by one.
After personally experiencing the strength of the dome, one by one was even more surprised. After the weight loss was successful, the second brother with the heaviest weight in the tribe went up and jumped back and forth several times. Regarding the strength of the dome, Everyone has a new understanding.
In the expressions of regret, Han Cheng personally dismantled the dome that was built with great difficulty.
Then one of the ‘low walls’ that were only 30 centimeters high was also demolished, and after moving back half a meter, they continued to use bricks to build the roof.
Only this time the span of the vault reached one and a half meters.
"Wow..."
As expected by Han Cheng, the first attempt failed again.
However, he had the experience of building a small vault before. This larger vault did not fail too many times. On the next day, he set it up.