Research using urine as a base material on the Moon
(08/04/2020 8:13:04 AM) The team, including scientists from Norway, Spain, the Netherlands and Italy, has collaborated with ESA to conduct a number of experiments to test Potential of urea in urine. They found it to act as a plasticizer, an additive added to fresh concrete to soften and increase ductility before the mixture hardens.
Base on the Moon is a stepping stone to conquer deep space in the future.
The US Space Agency (NASA), the European Space Agency (ESA) and Chinese partners plan to build modules on the Moon in the coming decades, as part of a space exploration plan. deep to send people to more remote places like Mars. Besides the challenges from high radiation levels, extreme temperatures or the risk of being hit by meteorites, finding sources of materials to build bases is also a problem.
Transporting about 0.45 kg of material from Earth to space could cost up to $ 10,000. Building a complete module this way will require huge sums of money. That's why space agencies are thinking of utilizing materials available on the lunar surface, including astronaut waste products to build bases.
"The idea is to use a coarse surface layer on the Moon's surface, mix with water (taken from ice in some areas or sewage) and combine with urea extracted from the astronauts' urine to create a geopolymer concrete or natural composite concrete, "said Professor Ramón Pamies at the Polytechnic University of Cartagena, Spain, one of the authors of the study.
A multi-layered geopolymer concrete structure built by 3D printers.
Using materials similar to the moon-like soil developed by ESA, researchers from Norway's Ostprint University created two concrete samples - one combined with urea (U-pattern) and one using common naphtalene plasticizer (N model) - to compare their stability in multi-layer structures built by 3D printers. The results showed that U-shaped concrete was able to hold the shape and support the weight better.
In the next phase of the study, scientists want to try new methods to evaluate whether it is really necessary to extract urea from urine, because in addition to urea, many other additives Can also be used to produce geopolymer concrete.
ximang.vn (TH / Scitech Daily)
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On April 7, 2020 at the Ministry of Construction, Deputy Minister of Construction Nguyen Van Sinh, member of the Steering Committee of Project 896, attended the meeting to review the implementation of the Project 2019.
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