Researchers from Trinity College Dublin discovered that sand on the surfaces of Mars and the Moon can transform into solid bricks, paving the way for future space settlements.By binding regolith—composed of surface rocks, sand, and dust—using low temperatures and minimal energy, they have developed a solution to use extraterrestrial resources for construction. TCD Discovers Martian Sand Can Be Used for Space Bricks.
Binding Regolith with Carbon Nanotubes Martian SandÂ
The researchers found a way to bind regolith together to form building blocks using carbon nanotubes. These blocks have a relatively low density but possess a strength similar to granite, making them suitable for constructing extraterrestrial structures.
Professor Jonathan Coleman, the lead researcher on the project, highlighted that this approach could significantly reduce the amount of building material that needs transport from Earth. He said, “Constructing a semi-permanent base on the Moon or Mars will require maximal use of materials found in-situ and minimization of materials and equipment transported from Earth.”
Minimizing Earth-Based Resources Martian SandÂ
Creating blocks with regolith and carbon nanotubes can reduce the need to transport construction materials to space, which is crucial due to the costs and limitations of launching heavy materials.
Additionally, these construction blocks have conductive properties that allow them to act as internal sensors, capable of monitoring the structural health of extraterrestrial buildings. Since these structures will need to retain air, detecting early warning signs of structural failures will be crucial for the safety of those living in them.
Impressive strength and practical applications on earth
The blocks created by this method demonstrate impressive strength, approaching that of granite. Professor coleman explained that the construction of a moon or mars base would rely heavily on using in-situ resources such as regolith and water, supplemented with small amounts of additives from earth.
Reducing co2 emissions in earth’s construction industry
This discovery could also have practical implications for earth’s construction industry. The research shows similarities to the use of graphene, a nanomaterial that can significantly enhance construction materials. Researchers have found out that adding graphene in large volumes to cement can improve the strength of concrete by up to 40%, enabling less cement usage in construction works.
