Chapter 203 Unlimited Resources


    September 25.


    The breakthrough in technology sometimes comes unexpectedly quickly.


    Unlike other technologies, research on basic materials is not enough to rely on a flash of inspiration, and it is still full of randomness and variables.


    It''s like drawing a card in a game card pool without guarantees.


    No one knows how much resources they invest can only be lucky enough to get a golden card.


    And obviously.


    This time, Su Wu was very lucky.


    Just two days later, the rapid cement technology icon was completely lit up.


    Really obtained this material that transcends the times.


    “The main materials are limestone and rubber, plus a small amount of catalyst.”


    “The cost is acceptable.”


    See the formula for quick cement.


    Su Wu first estimated its cost and mass production difficulty.


    The catalyst can be ignored.


    The amount of use is so rare that even if it is exchanged with gold and silver, it does not need to be cared about.


    Limestone accounts for the largest proportion.


    However, its reserves are also quite huge.


    Not to mention the direct output of small limestone ores, hundreds of millions of tons of finished concrete in urban ruins also contain a large amount of limestone.


    And it is different from ordinary cement.


    When making fast cement, there is no need to waste a lot of resources and labor. The limestone in the finished concrete is separated out first.


    Just crush the concrete into powder state and you can directly add it to the production process.


    The overall cost is not much higher than digging from the limestone mine.


    The really hard thing is rubber.


    There are no oil fields in Jianghe City and nearby areas.


    In a short period of time, it is basically unlikely that large-scale synthetic rubber will be produced using oil as raw materials.


    As for natural rubber.


    Now all living things on the surface are almost completely extinct.


    If you want to harvest natural rubber, you can only plant rubber trees from scratch in the limited space of the underground shelter.


    And even if Su Wu starts planting immediately now, it will take six or seven years to see the first batch of output.


    These two roads to obtain rubber on a large scale are not easy to go.


    But fortunately.


    In the formulation of fast cement, rubber is a secondary main material second only to limestone.


    But its dosage is not too large.


    It basically remains at a ratio of about 1000:1.


    Almost two kilograms of rubber can be used to make one ton of fast cement.


    In the early stage, Su Wu can still bear this consumption for the time being.


    You can use stock supplies, or used tires, etc. to support it for a period of time.


    It’s hard to say after the dosage is too high.


    after all.


    No matter how large the rubber is, in the end of the world, unless an oil field is discovered, it is also a non-renewable resource.


    "In general, fast cement is still a precious resource with limited quantities."


    "You can''t waste it too casually."


    With this in mind.


    Su Wu was not in a hurry to make plans.


    Instead, after the chemical laboratory prepares some samples of fast cement.


    First, it was conducted with a series of more in-depth practical tests.


    In testing.


    With about 5 cm thick fast cement, all kinds of properties can be comparable to the standard exterior walls of the shelter and one meter thick concrete.


    And in terms of temperature insulation, waterproofing, and ductility, it is better than concrete.


    This means that if you use fast cement to build a shelter, you will be more afraid of high temperatures and severe colds.


    It also has excellent resistance to earthquakes. At the same time, there is no need to perform additional waterproofing treatment like concrete.


    Rapid cement itself is the best water barrier material.


    In addition.


    Fast cement that can quickly solidify within three minutes can almost catch up with Su Wu using the survival point to strengthen ordinary cement.


    In theory, as long as it is in sufficient quantity.


    Su Wu could have created a miracle in the field of architecture in a very short time.


    Expand the scale of the shelter to an incredible level.


    However, while fast cement has excellent performance, it is slightly higher than expected, and its actual application cost is also slightly higher than expected.


    Rapid cement cannot be mixed with sand and gravel, and can only solidify after adding a little water and irradiate it with special light.


    This means walls poured from fast cement.


    Its main ingredient is fast cement.


    No mistakes, one song, one content, one in 6, one book, one bar, one reading!


    For ordinary concrete walls, the proportion of ordinary cement is less than one-third.


    All that remains is water and sand and gravel with almost negligible costs.


    This comparison is under the same effect.


    It shows the gap between ordinary cement and fast cement.


    It is not as exaggerated as the 20:1 gap between concrete walls and walls made by fast cement as seen before.


    Instead, it should be reduced to around 7:1.


    “There are currently 7,000 tons of rubber in the warehouse.”


    “When the materials are all ready-made.”


    “It’s not difficult to produce fast cement.”


    "One production line can easily produce tens of thousands of tons in a day."


    “So, in a short time, there is no need to worry about the supply side.”


    "Then if you use it, these fast cements must first be used in the shelter of the farmyard."


    "Just now, the engineering team is undergoing the first phase expansion."


    "Just pour all the outermost exterior walls after the expansion with rapid cement."


    "The thickness is set to 5 cm, and the various properties are compared with ordinary concrete walls with a thickness of one meter."


    "In this way, the newly added space can become the same as the original inner layer of the shelter in terms of security."


    "And it can also significantly speed up the expansion of shelter."


    “In addition to this, rapid cement can also be used to build underground passages.”


    "Connect the farmyard with the various affiliated shelters."


    “Easy to transport materials between each other.”


    Looking at the test results of the fast cement.


    After another calculation, the total amount of fast cement that can be obtained at present.


    Su Wu gradually gained a clear position on its use.


    7,000 tons of rubber stock is equivalent to 7 million tons of fast cement.


    This huge number.


    It has far exceeded Su Wu''s current digestive ability.


    It means that in the future, Su Wu''s shelter will develop to a certain scale.


    We can completely feel confident that fast cement can be regarded as a nearly unlimited resource.


    Some construction plans that could only exist in the imagination can also be boldly promoted in reality.


    And in these plans.


    The most important thing is still the expansion of the farmyard shelter.


    Currently, the farmyard can open an area of ??about 600 square meters every day.


    This speed.


    It is not the limit of underground excavation and construction by engineering teams.


    It is the limit of the cement production speed of small limestone ores.


    Once fast cement is used instead of ordinary cement, the problem of material shortage is solved.


    The expansion speed of the engineering team can reach at least 1,000 square meters per day, that is, 12,000 cubic meters.


    (End of this chapter)