Shu Cheng vaguely remembered that in his previous life, the heavenly route controlled the temperature of the mixed concrete, and indeed added some ice to it to control the temperature of the concrete. Pen, fun, and www.biquge.info

This ice is not much or big, just add it properly, because the ice cube has a drawback, that is, once the ice cube melts, it will dilute the concrete after it becomes water.

The concrete used on the construction site is mixed according to the mix ratio, for example, there are regulations on the amount of cement, sand, gravel, fly ash, admixture, and water required for one side of the concrete.

After adding ice, this part can be calculated, but because the ice can not be melted in time, less water is added in the mixing process compared to the concrete, which affects the mix ratio of concrete.

However, once the amount of water is added according to the mix ratio, when the ice melts, the mix ratio of the concrete changes compared to the addition of more water.

These details must be taken into account, because once the mix ratio changes too much, it is likely to affect the strength of the concrete.

Therefore, it is indeed feasible to add ice cubes, but there is a degree, if the ice cubes just melt during the mixing process, and the water is integrated into the concrete, then it will play a very important role in reducing the temperature of the concrete.

Now the problem is mainly to control the amount of ice cubes.

Shu Cheng paused and began to say: "Just now Manager Li and both of them said that I also agree with the control of the concrete temperature from the material, but I think that the concrete coming out of the mixing tank can be cooled?" ”

"Cooling the concrete coming out of the mixing tank?" As soon as everyone heard Shu Cheng's words, many people immediately frowned.

Typically, the mixed concrete, coming out of a funnel-shaped tank, is loaded directly into the tanker.

Then the tanker truck transports the concrete to the site, and the question is, how to cool it down in the process?

"Manager Shu, tell me what you think." Yao Gongjun said rarely.

Now it's up to everyone to figure out a way together, and most people can think of the first or second part of the method just now.

But Shucheng said that the method is not quite the same, the key is that no one has thought about it this way, everyone's thinking is thinking about how to reduce the temperature of the concrete before mixing, but they have not thought about how to control the temperature of the concrete after the concrete is mixed.

However, Shucheng considers after mixing and controls the temperature of the concrete.

"Actually, the solution is very simple, that is, after we mix the concrete, we don't load the concrete into the tanker. The mixed concrete can be transported to a refrigerated room by means of a conveyor belt, and after walking around, the temperature of the concrete is lowered, and then loaded into a tanker truck and transported to the site. "Shucheng Road.

In fact, Shucheng's method is relatively simple, just like hot water, it is passed into a refrigerated place to cool it down, and then it is installed.

In this way, the overall temperature of the concrete will drop, obviously, this method is better than other methods, and the speed of the conveyor belt can be completely controlled, the concrete is colder, slower.

Compared with the method of adding ice cubes, which is beyond human control, Shucheng's method has obviously become feasible.

"Yes, this method can be explored, if it is really built, then the temperature of the concrete, controlled within 5 degrees, is no problem at all." The chief engineer of the bureau, Kong Zhijin, also nodded.

"Although the method is good, it is difficult to build and plan this kind of mixing plant." The project manager of the second department said.

"It is indeed difficult, but as long as there is a way, everything is easy to do, after all, adding ice cubes looks feasible, but in practice, it is quite difficult, and the concrete mix ratio is not good, which affects the quality of concrete!" Yao Gongjun said at this time.

If the requirements of other railways are not so high, to be honest, more water is not a big deal, but it can't be circulated.

But the sky route is different, the sky route has very high quality requirements, plus the construction index is also very strict in this regard, and it is a frozen soil area, and various factors are added together, Yao Gongjun does not dare to be careless.

If the reputation of the 31st Railway Bureau is damaged because of this incident, Yao Gongjun's career will be nullified.

Therefore, Yao Gongjun did not dare to take this risk for the problems that affected the quality of the project, and he would rather be more troublesome and spend more money to ensure the quality.

The suggestion of the project manager of the second department is good, but it is difficult to actually implement it. Compared with the suggestions of the project manager of the second department, the method proposed by Shu Cheng is obviously better than others.

Using Shucheng's method, even the materials do not need to be deliberately changed, such as the amount of cement, which can be used according to the most suitable ratio.

In this way, the quality assurance is not only accelerated, but also the speed.

After all, it is too troublesome to implement, such as the method of stirring after the raw material is cooled by the water.

What's more, once the raw material invades the water, the water content in the raw material has also changed, and the matching sheet must be readjusted, which will cause a series of problems.

These things are not as simple as they seem.

Kong Zhijin also nodded and said: "Yes, we are all trying to find a way to reduce the temperature of concrete, but how to be the most appropriate, it is very important, Shu Cheng's suggestion captures the essence, very in line with the actual situation, and there is no need to worry about the change of the mix ratio, resulting in problems with the construction quality." ”

Shu Cheng saw that Yao Gongjun and Kong Zhijin both agreed with him, smiled slightly, and said: "The only disadvantage of this method is to study a special refrigeration equipment, because the method of turning on the air conditioner, I think the effect is obvious, and it can't really let the temperature of the concrete come down." ”

For this problem, it is indeed what Shucheng has been considering, through the form of conveyor belt, even if the speed is slow, when passing through the cooling room, the reduced temperature is limited, and the effect of air conditioning is difficult to reflect in a few minutes.

It's like a basin of hot water, put it in an air-conditioned room, if you want it to cool down, it will take a while, and it can't cool down as soon as you put it in, which is obviously unrealistic.

"This is indeed a problem, if the concrete stays in the cooling room for too long, one is to affect the construction period, and the other is that the concrete is initially set, and then it will be more troublesome." Yao Gongjun nodded.

After all, concrete is a mixture, and over time, it will solidify, and once it solidifies, it will not achieve the purpose of construction.

"In that case, Manager Shu's method is still not feasible!" The manager of the second department said with a smile.

As soon as Shu Cheng's method was said just now, his own method was almost instantly denied, which made Zhang Han, the manager of the second department, very unhappy.

You know, the idea of adding ice cubes, but they came up with it with great difficulty, and originally thought that their idea would resound throughout the conference room, which was definitely the best way.

But the result made Zhang Han a little disappointed, and as soon as Shu Cheng spoke, Yao Gongjun began to deny his suggestion.

Although his suggestion was flawed, in the opinion of Manager Zhang, it was a good suggestion.

Now seeing Shu Cheng's deflated appearance, Manager Zhang suddenly felt comfortable in his heart, and scolded secretly: Let you have to come up with a way, it's not useless, and the method that can't be used for implementation is not a good way at all.

Of course Shu Cheng didn't know what Manager Zhang of the second department thought, and when Yao Gongjun and the others finished speaking, Shu Cheng said slowly: "Actually, this cooling room should not be built at all, we can make some air-conditioning sprinklers, and after cooling, through rows of sprinklers, spray cooling to the concrete on the conveyor belt to cool down!" ”

How does a bowl of water cool down quickly?

In Shu Cheng's view, bring this bowl of water to the air conditioner, blow the air at the air conditioner, and let the cold air blown by the air conditioner blow directly against the hot water.

This method can quickly reduce the temperature of the water.

And Shu Cheng's current method is even more subtle,

He considered using a sprinkler head to spew cold air to cool the concrete.

Because the air conditioner outlet is too large, the air conditioner comes out without a target, the pertinence is not strong, and there is no centralized cooling.

The use of sprinklers is different, he is aimed at a single place to cool down, and a row of sprinkler heads, when arranged together, can quickly reduce the temperature of the concrete.

Moreover, the amount of cold air sprayed by the sprinkler head, the speed and speed can be artificially controlled, so that even the temperature of the concrete can still be controlled in each direction, and even controlled very accurately.

When Shu Cheng finished his thoughts, he explained them to everyone in the conference room in this order, and almost everyone showed a look of surprise.

Even Yao Gongjun showed a hint of strangeness.

He has long heard of Shucheng's glorious deeds, and they all say that he has a very good set of construction and has a lot of ghost ideas.

After Shu Cheng finished speaking for a while, everyone reacted, Yao Gongjun coughed, and praised unceremoniously: "Manager Shu, if the construction process is really implemented according to your method, you will take the first credit!" ”

"Commander Yao, you praise me too much, I'm just saying what I think." Shu Cheng responded neither humbly nor arrogantly.

For this method, even if I talked to Lin Xiaoyong and others just now, I only mentioned a general idea, and did not say some details.

At the beginning, Lin Xiaoyong and the others didn't care much about it at all, but now when they heard Shu Cheng say this, they suddenly sighed that the method was really good, and they couldn't help but be amazed.

After Shu Cheng finished speaking, it was the turn of the manager of the fourth and fifth projects to speak, in the face of Shu Cheng's whimsy, the two managers did not dare to show ugliness, and directly said that there was no other good way, as for the temperature control from the material aspect, the project manager of the first and second departments has already said, as for other good methods, compared with Shu Cheng's method, it is too far worse, it is better not to say it.

Eventually, under the leadership of Yao Gongjun, it was planned to promote Shucheng's idea in the third, fourth, and fifth departments, and build this kind of mixing plant that could control the temperature of concrete.

Of course, before construction, further design planning is required, and even how to make air conditioning is a problem that everyone needs to consider.

It is definitely not possible to use air conditioning, and a set of such refrigeration equipment must be specially made.

That night, the construction crews of Cai Mao and Liu Papi had already arrived in Golmud. (To be continued.) )