Similarly, if an employee has a problem, it is best not to come directly to him to deal with it, even if the employee is right, in fact, he is not easy to deal with, if it is handled, although it will increase the prestige of the employee group, but it will bring harm to the management.

Just like in ancient times, if you want to sue the emperor, you have to hit the board before you can see the emperor.

Shaking his head, the improvement of the system depends on the environment, so let's cross the river by feeling the stones and take it slowly.

Today is the third day, Wang Hongwen has been running away for three days with the money, and has not seen him back, Yang Chuntao also ran away to sell vermicelli in the county, the initial sales are not bad, but the vermicelli is expected to have nearly 100,000 catties, this number is too big, and most of them can be sold before the Chinese New Year, that is a happy event, the vermicelli can theoretically be stored for a year, but the best time to eat is within half a year, a long time, the vermicelli is easy to find itself jumping, the tenacity of the surname decline and other problems, and finally affect the taste, smash the signboard.

It's really not good, the cement factory will also find a way to solve part of it, and it can't chill the hearts of the entire Jiaoshan villagers.

Tomorrow's opening plan will continue as usual, and the initial construction of the cement plant has been finalized, and the construction can start after the equipment is installed.

Masons are different from stonemasons in that they do not rely only on physical strength, but also on the elements of skilled work, and the same is true for carpenters, technology is fundamental, as long as there is technology, you can find food in that period, and it is also very important to teach skills that can make a living.

To sum up, it is not easy to train a skilled technician.

A few of these masons would be left behind to put the finishing touches on, and the rest, the day after tomorrow, he would take them out and build a large warehouse in the steel town, and later dump the goods in that place.

If the plan can keep up, these nearly 30 technicians will be incorporated by him to form a small team, which is a small subsidiary to serve him.

At the same time, he is now going to set up a prefabricated panel factory, prefabricated panels are the floor slabs used in early construction, because they are processed and formed in the factory and directly transported to the construction site for installation, so they are called prefabricated panels.

Two thousand years later, it was basically replaced by on-site watering reinforced concrete, and in the 80s it was still very promising, as long as it was to repair buildings, it was necessary to use prefabricated panels, even small bungalows. In the nineties, it can continue to be carried out, but after two thousand years, it is only suitable for the rural market, and even in rural areas, cement slabs are no longer used for frame houses.

He vaguely remembers that the price of prefabricated slabs thirty years later is about 100 yuan, and if you ignore the specifications and the prices of various raw materials, the price of precast slabs is about one-fifth of the price of cement, and the transportation cost should be ignored here.

So converted, now the cement is forty yuan a ton, and the prefabricated board should be eight yuan a piece, but the real price is close to ten yuan a piece, and the price of the prefabricated board is a little inflated. But it's a good thing for him.

As early as a month ago, when the cement plant was launched, he investigated the price of prefabricated panels, as well as processing data, etc......

Ignore the cost of reinforcement, and the rest will be used: water, cement, river sand, and stones.

Start with a formula with better quality, that is, a larger proportion of cement. The mix ratio is: water 0.38: cement 1: river sand 1.11: stone 2.72

According to the calculation of one cubic volume of concrete commonly used in industry, the need for water: 175kg, cement: 461kg, river sand: 512kg, stone: 1252kg. The total weight is 2400kg, and the general standard is 2100-2600kg.

The rest of the worse formulas, per cubic meter, only need 340kg of cement, to use 80kg less cement, and then will increase the proportion of river sand. But because the cement is now self-produced, it is better to take the quality route, after all, this is processing to live in, and quality is the first key.

Now this formula has been the standard of reinforced concrete in later generations, and the total material mixed weight is 2400kg.

In terms of its cost, water does not need money, cement is calculated at 25 yuan per ton, 461kg is about 11 pieces of 5 cents, 512kg of river sand is about 5 cents, the current price difference between river sand and cement is dozens of times, reducing and increasing river sand, the profit in the middle is very large, but for him who has experienced earthquakes in later generations, quality is the key, so he will insist on the proportion of cement use.

The stone is about 1 yuan and 3 cents, and the volume of concrete is 1 cubic meter, and the total cost is about 13 yuan and 3 cents.

At present, the specification of ordinary cement prefabricated slabs is 3.6 meters in length, and the maximum shall not exceed 4.2 meters. The width is calculated by the hole, a hole is 10 cm, generally 4 or 5 holes, that is, 40 cm or 50 cm wide, and the thickness is generally 12 cm or 15 cm.

The prefabricated board for 10 yuan is 3.6 minutes long, 40 cm wide and 12 cm thick, with a hollow hole in the middle of 6 cm in diameter. The overall volume of the prefabricated panels is calculated to be 0.17 cubic meters. The volume minus the middle hole is 0.01 and the four holes are 0.04 cubic meters. The resulting volume is 0.13 cubic meters.

Compared with the previous proportion of one cubic meter of volume, the cost price of a prefabricated panel of standard specifications is 7 cents and 2 cents per piece. Its weight is 312kg, and after evaporating the weight of the water, it is about 300kg, which is calculated according to the ordinary cement slab of 3.6 meters. If corners are cut, weight and costs will go down.

In addition, according to the load-bearing capacity, you can choose 4 to 8mm steel bars, according to the national standards of later generations, the length of 3.6 meters, the width of 0.5 meters of the primary prefabricated slab should have 10 steel bars with a diameter of 4 mm, and the length of 4.2 meters should have 10 steel bars with a diameter of 5 mm.

The current specification is 40 cm, only 8 steel bars are needed, divided into five groups, one on the left and right sides, and two in the middle three groups, with a spacing of 10 cm.

The diameter of the steel bar is different, and there is a big difference in its weight, the 6 mm steel bar is more than twice as heavy as the 4 mm steel bar, because the steel bar is more expensive, cut corners, mainly in the two aspects of cement and steel bar, lack of these two, then the prefabricated plate is a life killer!

Because the length is only 3.6 meters, you can choose 4 mm of steel bars, but Fang Dajun still plans to choose 6 mm, weighing 0.222kg per meter, 3.6 meters, equal to 0.8kg, a total of 8, you need **kg of steel bars, in fact, more than that, because both ends will be exposed a little bit, a total of about 7kg is needed. The current price of steel bars is 320 yuan per ton, and about 4,000 yuan in later generations, an increase of 12 times.

320 per ton, then each kg is 3 cents 2, a total of 2 pieces of 2 cents of 2 cents of the cost of 4 cents, the price of steel bars alone has exceeded the rest of the cost of 1 piece 7 cents 2 cents. It's really a bit scary, if he chooses 4 mm steel bar, then the cost of steel bar is only 1 yuan.

But still that sentence, safety finally Mount Tai, of course, if you choose 8 mm of steel bar, you have to spend more than four yuan, plus the cost, is more than six dollars, this is not counting the cost of artificial sites and equipment, to really choose 8 mm, then kneeling, equal to nothing, no money at all, is also a big waste.

So the choice of 6 mm has been OK, which has exceeded the standard after 30 years, then the total cost is about 4 yuan, 10 yuan a prefabricated board, equal to earning 6 yuan, in fact, there is not so much, the purchased raw materials need to be transported back, in addition to the wages of workers, and the cost of site equipment and electricity costs, but also count the failed products.

Overall, according to his standard, the profit of each prefabricated board is about 4 yuan, compared with the profit of honeycomb coal, he knelt directly.

But it still has to be done, just like the cement factory, the incidental significance is very significant, and it is related to his future industries, so the prefabricated panel factory has to be launched.

And the time is still very urgent, because the cement factory to build a building, you have to use prefabricated panels, he doesn't want to guard Baoshan, he also went outside to buy, prefabricated panel production equipment is very simple, as long as there is a mixer and internal vibration floor machine OK.

But he seriously doubts, now it is estimated that there is no internal vibration floor machine, and even a simple version of the professional floor machine is not, this kind of equipment is a fool's type, and the mixed raw materials can be filled in, saving the trouble of manual molding.

This problem will be consulted by XCMG tomorrow, if there is really not, then make it yourself, the machine is not complicated, its function is to professionally manufacture prefabricated panels, as for patents, it is estimated that it will be more cheating, and it will be consulted when the time comes!

PS: It took a lot of time to write this chapter, book friends, please give a "like"! (To be continued.) )