He forgot that he had asked Guan Yuangu to ponder cement what Chen Mu told him, but Guan Jiang always remembered it.

The cement ratio was made out by Guan Yuangu. This thing is not complicated, and it is very similar to the materials used in the past, but the ratio is different. However, there was no precedent in this regard in the Ming Dynasty, so I had to try it in a stupid way. Fortunately, Chen Mu gave the raw materials, and Guan Yuangu had a lot of manpower for him to use, so that cement appeared in the world.

In Guan Yuangu's words, cement is not difficult to make, and steel bars are not difficult. It takes stupid work, but it is very difficult to transport so much cement and steel bars to form a piece of cake.

Guan Yuangu wrote a letter to ask Chen Mu to come back, not to ask him to see the cement tower.

The craftsmen of this era are far different from those of later generations. They are more like craftsmen, carefully crafted. Even if they are a cement-structured Taoist pagoda, there is actually no difference from the buildings in the past outside. They are painted, and they are carved with beams and painted buildings.

Ten five-pound cannons bombarded a cement wall at a hundred steps, and three rounds of volleys just broke the wall. This was enough.

"With this, we can also build permanent fortifications. If the iron ribs are difficult to make, you can use wood and bamboo. If there is not enough lime, you can use volcanic ash from the South China Sea. There are many idle Dafu in the South China Sea. There are volcanic ash everywhere in the South China Sea. A fleet of 100 Dafu ships can bring back 200,000 stones in the past two months."

"Master, actually, it's made of cement to save iron."

Chen Mu played with the kerosene lighter made by Nanyang Wei and wondered: "What do you say?"

The lighter is a small thing, iron shell cotton core and flint can be used to ignite. As long as you prepare a little kerosene, it is very convenient to make a fire outside. This was also made by the Nanyang Military Academy and has not yet been put into mass production. According to the Navy Lecture Hall, Lu Tong, the chief of the Wushu Hall, this thing must also be equipped with the entire army of Guangdong and Guangxi.

Chen Mu brought another and most important reform to Mingjun, which is equipment standardization.

Carrying tools have now been implemented in the entire Guangdong Dushi, the canvas system of lower-level officers, and the leather, backpack and blanket are produced in Xiangshan. This small thing alone can make it more convenient to make fire, so naturally, it is necessary to join carrying, but it is impossible for everyone to have one, and it is good to have one for each small flag.

Guan Yuangu said to his entourage, asked Chen Mu to wait, and said to Chen Mu: "The fleet is increasing, and the iron bullets are consumed more and more. The stone bullets are light, but they are also very hard. The old man wondered if some of them were replaced with cement bullets, would the cost be lower?"

Chen Mu disagreed and said, "Can this thing smash the ship board?"

If all the stone bombs were replaced and the enemy ships could not be broken by then, that would be a joke.

"It's not shells, shots, guns with cement bullets."

Guan Yuangu was just talking, and the follower brought two small buckets. Chen Mu knew at a glance that it was a shotgun used by Ming Jun. He stuffed the wooden blocks at the bottom of the iron tube and sealed the paper shell. He tore open the paper shell and found cement bullets of uniform size.

I just heard Guan Yuangu say: "The stone bullet is lighter, and using this as a shotgun can hit farther. It's just that it hits people and is powerful."

This was very interesting. Chen Mu immediately opened his hand and shouted: "Get armor, breastplate."

The hand gun on his waist was filled with stone bullets, and soon a servant put a breastplate in the yard. Chen Mu hit him with one gun within ten steps. The stone bullet penetrated the breastplate and built it into the thick wooden board behind him. After the flag army took the stone bullet back, Chen Mu was amazed.

The stone was cracked, but it was not broken because it was mixed with fibers, that is, fabrics, so it was obvious that Guan Yuangu was prepared.

Whatever bullets are fired by a musket actually do not change much about the power. It is the same when firing lead-fired bullets and iron bullets. It is nothing more than to use bullets for any more materials in China. It is just a standard, as long as it is not fragile. If there is more iron in the Ming Dynasty, it is naturally made of iron.

But cement is really too brittle than metal.

Seeing that the power was not bad, Chen Mu asked his family soldiers to take the Long Bird gun to test the shooting and said, "If the power is not bad, use part of it to make guns and shot bullets. This thing is light, and it is good that the flag army can take two kilograms less."

Heavy artillery shells are definitely not good. Nowadays, the trend of various countries at sea is that the boat plates are getting thicker and thicker. Only heavier shells can penetrate the hulls of enemy ships to achieve the effect of sinking enemy ships. However, the cost of marine shotguns can be reduced by cement projectiles. Anyway, hitting people, especially sailors who lack armor, can break through without much effort.

If you can't penetrate it, you will actually have stronger killing and will directly lose your combat power.

"Just use it for a while. There will be no shortage of iron in two years. In the future, the world will still be filled with blooming bombs. That thing is not good for cement."

As Chen Mu said this, Guan Yuangu smiled and asked, "Master, when it comes to flowering bullets, is it easy to hit the corner?"

"Explosion-hit corner?"

Speaking of this, Chen Mu shook his head and said, "It's better to do less hitting the corner boats back. The era of jumping gangs at sea is over. Naval battle is ultimately the battlefield of artillery."

Chen Mu didn't want to undermine Guan Yuangu's enthusiasm. He finally made some innovations. It would be better if he directly rejected it. But as of now, the explosion and collision angle basically did not work.

On the contrary, when he came back this time, the fleet followed a corner-collision ship, hitting a reef on the sea, and hitting a corner-burning the reef scared the fleet sailors. Fortunately, the design was exquisite and did not hurt anyone.

"Yes, the master said that the corners should be hit and the shells, and the explosive bundle, were all made."

Guan Yuangu looked very happy. He was an old craftsman and didn't know much, but he was better because Chen Mu led the way. What else could make the craftsman happier than making new and useful things?

Soon, the explosive bundle and a few boxes of new shells were placed in front of Chen Mu, which scared him. He looked far away for a long time and felt that there was no problem before getting closer.

Can this thing be stable? What if there is an unstable explosion and the Ming Dynasty's generation of talents destroyed the firearms they built, what a great loss would it be?

However, Guan Yuangu was also very concerned about this matter.

The wooden box for loading shells is specially made, and the flat box is covered with layers of wooden grids, just stuck long shells on it.

"Hey, how do you know that the shells are going to be made into long pointed heads?"

The Ming Dynasty was not very good at geometry, and it was strong in algebra. This kind of streamlined type of wind resistance should not be known by the craftsmen of the Ming Dynasty. Chen Mu was very surprised by this, but Guan Yuangu quickly gave the answer and said, "Is the long cylinder good? It seems that the old man did it right, and there must be a mechanism for ignition of the rear wheel inside, so it was done like this."

Guan Yuangu is really cruel. Some are drilling ship blasting bombs, and some are big-headed bullets used for tiger squat cannons. They all carry machine wheels to fire, and directly upgrade the tiger squat cannon to mortars.

However, Guan Yuangu said that the shell was still in the Navy Martial Arts Hall and could not be put into use. He said: "The big-headed shell of the tiger squat cannon is fine. The fragments can be exploded in a radius of ten and twenty steps, and it can be done by one or two hundred steps. However, if this long shell cannot be shot far, it will be overturned. Most of the time, it cannot get angry. It is too close to the five-pound and ten-pound cannon when it hits a hundred steps. The old man doesn't know what to do."

what to do?

Chen Mu was very focused, and he knew the reason for the flip and said, "I tried the rifle from several years ago in the cannon bore. Remember to thicken the new cannon and then rifle it. Use copper instead of iron. This thing is a big treasure. You must make it anyway."
Chapter completed!