Building on Luna and Mars with StarCrete the double strength concrete
https://www.marsdaily.com/reports/Scien … e_999.html
'Meet Atlas, the Boston Dynamics robot that can now do construction work'
https://www.youtube.com/watch?v=I-52B7-_-U0
Robotics signals a new reality for construction – upskill or be left behind
https://www.ukconstructionmedia.co.uk/f … ft-behind/
Built Robotics develops autonomous solar piling robot
https://www.therobotreport.com/built-ro … ing-robot/
Construction Automation, Robotics to See at CONEXPO
https://www.forconstructionpros.com/con … at-conexpo
Another newmars discussion on Robotics and AI
'Robots becoming useful...'
]]>NASA’s Mars helicopter aces longest flight in almost a year
https://www.digitaltrends.com/news/nasa … st-a-year/
Bigelow style inflatable parabolic space antenna
Student-Designed Cubesat to Feature Inflatable 'Beachball' Antenna
https://gizmodo.com/upcoming-cubesat-fe … 1850197655
The CatSat was designed by student researchers at The University of Arizona, but the cubesat is getting helping from a beachball-inspired antenna that can inflate and transmit data back to Earth incredibly fast. Cubesats typically feature small antennas that can take days to transfer data down to Earth, but the wide surface area of the inflatable antenna makes data transfer faster.
'Intelligent Robotic Excavator Unveiled for Improving Construction Efficiency, Safety'
https://www.iotworldtoday.com/robotics/ … ncy-safety
Construction Workers Embrace the Robots That Do Their Jobs
https://www.wired.com/story/constructio … heir-jobs/
A robotic excavator can dig a pipeline trench without a human in the cab. An engineers' union is partnering with the company that makes the tech.
Watch this team of drones 3D-print a tower
https://www.technologyreview.com/2022/0 … int-tower/
Caterpillar And BHP Plan To Create Battery-Powered Mining Trucks
https://cleantechnica.com/2021/09/06/ca … ng-trucks/
Re-inventing the Wheel
https://ytprivate.com/watch?v=t2iHopdlFBg
https://hooktube.com/watch?v=t2iHopdlFBg
The Moon, Mars and Beyond: China's Ambitious Plans in Space
https://www.yahoo.com/news/moon-mars-be … 59783.html
The reason I thought it might be of interest to someone (or perhaps two) in the NewMars forum is that inspection of the "design" of the shell reveals a "jigsaw" structure that provides part of the unusual strength for joining two sections together.
The diabolical ironclad beetle, native to parts of California, can withstand being crushed by forces about 39,000 times its body weight. PHOTOS BY JESUS RIVERA/KISAILUS
BIOMIMETICS AND NANOSTRUCTURED MATERIALS LAB/UC IRVINE VIA AP, FILE
Beetle armor may give
clues to tougher planes
Jigsaw-like construction of its exoskeleton makes species crush-resistant
Elsewhere in this forum, there has been discussion of the limited lifetime of manufactured vehicles (on Earth but surely in Space as well) due to stresses on the materials that lead to failure. The "jigsaw" design of the naturally developed beetle shell appears to have the ability to degrade gracefully.
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]]>The article at the link below shows a 3D Printed house in Belgium. The roof and windows were supplied as add-ons, as well as a steel stairway to reach the second floor.
I would assume the second floor was supplied as an add-on as well.
https://www.businessinsider.com/kamp-c- … ium-2020-8
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Or using a material with simular consistency.
]]>I was happy to see your post #167. Would adding a coating of sunscreen be useful and compatible? Titanium Dioxide.
Done
]]>SearchTerm:BrickPressureLoading http://newmars.com/forums/viewtopic.php … 28#p144728
This post by IanM was part of a discussion on building brick structures to take pressure on Mars.
I'd like to invite others to look over the topic and add links to particularly interesting or valuable posts.
***
For SpaceNut ... down the road, it might be possible to interest a few (admittedly unusual) members to support creation of an index to content of the forum.
An index topic could be constructed in the Meta New Mars top level index.
The snippet above is an example of what might be added to such a topic.
A couple new members have joined the fray recently, and they cannot possibly find anything worth their time using the simple FluxBB search tool, except by blind luck.
Edit#1: Also for SpaceNut ... you are welcome to add links to ** this ** post, if you run across items that relate directly to the search argument.
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]]>Casey Handmer is amazing but I'd like to add a technical fix to that fluorine access problem for ETFE.
The call for ETFE is based on the impression that UV damage would destroy other types of plastic which is not necessarily true - it's mostly the production of oxygen based free radicals that causes the issue (for quick reading: https://en.wikipedia.org/wiki/UV_degradation ). If you can stop oxygen from inside diffusing into the plastic then UV degradation is greatly reduced and the inclusion of hindered amine light stabilisers (HALS) as copolymers, even making up as little as 0.25% of the total plastic, this can be greatly reduced yet further.
So:
- With a thin layer of something like poly(ethyl vinyl alcohol), usually written EVOH, the majority of oxygen transmission into a plastic habitat skin can be stopped
- A small amount of HALS copolymers stops initial free radical compounds made just after UV absorption in the plastic from propagating and leads to spectacular decreases in corrosion rates before any oxygen that does get through can make things worse.
With these fixes we can just use PET or a similarly cheap and easily produced plastic with no crazy elements like fluorine needed at all.
If we reinforce with basalt fibre (very nearly as good as Keflar but far far cheaper than Keflar) instead of Keflar or equivalent we'd be able to build this sort of thing at an industrial scale using only the resources we have on hand + a few low mass imported extras like HALS copolymers, accounting for perhaps 400 tonnes of plastic per 1 tonne of HALS or something.
I have heard of Granite chips and dust being used with cement or as a cement, which means its possible to use basalt as a filler material as well.
classification of aggregates
<a href="https://**infected site**/2020/07/classification-of-aggregates-used-in.html">classification of aggregates</a>
Edited by moderator 2022/10/23 during Email Outreach campaign:
The site as given by the original poster generated infection warnings.
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]]>Bricks are made from clay -- a type of soil found all over the world. Clay mining strips the land's fertile topsoil, inhibiting plant growth.
In conventional brick production, the clay is shaped and baked in kilns at temperatures up to 1,250°C (2,280°F). The majority of brick kilns are heated by fossil fuels, which contribute to climate change.
There are places that we have found to have clay so we can do it the old fashion way.
Of course for earth its about recycling materials.
K-Briq. To make it, construction and demolition waste including bricks, gravel, sand and plasterboard is crushed and mixed with water and a binder. The bricks are then pressed in customized molds. Tinted with recycled pigments, they can be made in any color.
In the UK, around 2.5 billion new bricks are used in construction every year -- and about the same number of old bricks are demolished. A seemingly simple solution to the brick production problem would be to re-use old bricks.
The answer to your question will depend upon the strength and thickness of the polymer. ETFE has a breaking strength of 40MPa.
]]>