The successful development of the energy production system has excited many experts engaged in the construction of the lunar surface, and the production of many industrial raw materials is much more convenient if hydrogen, oxygen and water can be synthesized.

There is no shortage of other elements on the lunar surface, but these basic raw materials are the most consumed, and now they can be obtained on a large scale in a systematic way, and their work is greatly reduced.

Among them, Yang Xinjun, who is competing for the lunar highway project, has the biggest difference between his space cement solution and Zhu Bingguang's 3D printing plan in that it consumes a lot of water, but it can surpass a lot in performance.

He couldn't help but look at Zhu Bingguang, but the latter was still calm, obviously very confident in his plan.

Including them, the first lunar expedition included 11 teams, each team had roughly 3 to 4 people, most of them were a team for a project, and it was rare for them to compete with each other.

Of course, this has to be removed from the demolition team that divides a separate area, where the teams of five bidding companies sit and are just bystanders and do not participate in public speeches, which seems to be very mysterious.

Soon it was Yang Xinjun's team's turn, and he didn't paint cakes as usual, but began to introduce the equipment directly.

In the past few months, with the help of the financial and technical support of the base, he has successfully developed the initial usable pavement construction machinery.

Although space cement is said to be cement, the actual application method is very different from that of the earth, and the biggest problem is the environment of the moon.

The surface of the moon is either ultra-high temperature or ultra-low temperature, and it is more than 100 degrees, and the extreme environment is even higher, which is for ordinary cement, even if it does nothing, it will burst into fragments under thermal expansion and cold contraction.

Space cement must not only be able to resist the expansion and contraction problems brought about by such an extreme environment, but also have to think about how to solidify.

The kind of water on the earth that is stirred and poured on the road surface to wait for natural condensation is definitely not good, and the fresh water will directly condense into ice crystals at too low temperature to destroy the solidification process, and it will not be able to solidify at too high temperature.

Therefore, the solution that Yang Xinjun came up with is prefabrication + high ambient temperature solution: the space cement is first stirred inside the equipment to a semi-solidified state, and then extruded when the construction side is facing the sun, and is spread like a roll of paper on the path through which the laying machinery passes.

Specially made space cement is extremely sensitive to ultraviolet light, cures in seconds under the intense ultraviolet light of space, and is firmly bonded to a compacted foundation that has been cleaned by a roller beforehand, and is expected to have a theoretical life of up to 15 years.

The team has now been able to solve the problem of paving machines with a width of 3 meters and has built a prototype with a total weight of 5.2 tons, which can be optimized in the future in terms of weight and construction road width.

And not only for paving, the space cement he developed can also be used in lunar construction, because it deliberately retains the richer metal elements in the lunar soil, and the ability of this space cement to resist space rays is also quite good, which may affect the communication in the building, but it is also a small problem that is easy to solve.

In his vision, although space cement requires slightly more supporting machinery and raw materials than 3D printing, it is more convenient to apply and has a larger output, and can become an ideal material for the construction of a lunar base in the future.

The domestic experts listened to it well, after all, there have been a lot of exchanges between them in the past few months, but for the foreign teams participating in the meeting, it was amazing.

Among them was Bill Nelson, who had a J.D. from the University of Virginia, went on to join the military, went on to become a Florida legislator in politics, and became the second congressman to go into space in 1986 aboard the Space Shuttle Columbia on the STS-61C mission.

Lawyer, soldier, parliamentarian, astronaut, Bill is a real traditional elite, whether it is the economy, technology or culture, and became the director of NACA a after a few years in the original world line.

Lin Ju didn't recognize this old man in his 70s as the future director of NACA, but Bill himself didn't look old and had excellent physical fitness.

In the end, the Argentine Congress won the same five astronaut spots, leaving three technical experts and one astronaut, and the remaining one was won by Bill, who had been in space and had excellent qualifications.

His main mission is not to go around the moon, but to take the opportunity to take an in-depth look at the scientific and technological development and institutional route behind United Mining.

There is a large elite in Aramco – including himself – who has a hard time understanding why the other party's space technology has advanced by leaps and bounds in two years, and this time the lunar ship ticket exchanged for a hydrogen bomb is just the right time to get close to Huaguo's space flight, which is surrounded by fog.

And now that the various Huaguo teams have taken turns to report the results, he has a glimpse of the clues:

In just a few months, from United Mining's request to the technical solution and prototype, they completed the task with an efficiency that NACA considered almost impossible.

At NACA, the cycle of a program is measured at least in years, but in this case, the units are days and months, and even the speed of speech is faster than that of NACA's research team.

He poked Jon, who was still listening intently, and whispered his thoughts, but the latter looked helpless:

"Honorable Mr. Congressman, if you can also approve the funding as readily as they do, our speed will never be slower than this, before the 'Huaguo speed', the term for the world's fastest is 'Aramco speed'."

Bill: "But the federal budget for you is only going to be more, and I'm sure it's twice as much as this year's NACA spending!" ”

Jon: "You know, I've been here to talk to a lot of the IADC researchers, and it's not what you imagined.

It is a country with a great respect for science, and more than 60 years ago they have put scientists at the top of the country, and the people who know science best are in charge of the entire scientific system, never subservient to political necessity.

And they don't need to fight with Congress to get funding, they don't need leaders to deal with the questions of farmers and legislators in their busy schedules, and once they decide on something, whether it succeeds or not, they will mobilize the whole country to do it.

Look at the young man named Lin, two-thirds of the team here is donated by him in advance, and he never interferes in the process of the project.

With all due respect, this is the place where science is most respected, and as we speak, there is a group of scientists traveling in space in an aerospace plane. ”

Jon recounted his summary with a serious face, and although it sounded reasonable, Bill always felt that something was not right, and that he had heard it somewhere.

But he thought about it for a while and didn't think about it, and finally he could only frown and nod in approval, and decided to write it down when he went back.

(End of chapter)