ENGINEERING: Almost all of our infrastructure has this corrosion problem

Thursday, May 29, 2025

https://news.mit.edu/2025/allium-engineering-enables-100-year-bridges-corrosion-resistant-steel-0520?utm_source=join1440&utm_medium=email&utm_placement=newsletter&user_id=66c4b9c55d78644b3a882a4d

Startup enables 100-year bridges with corrosion-resistant steel

  • Allium Engineering, founded by two MIT alumni, has developed a process for improving steel rebar to triple the lifetime of bridges and other infrastructure.

Zach Winn, MIT News

Publication Date: May 21, 2025 

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Now Allium Engineering, founded by two MIT PhDs, is tripling the lifetime of bridges and other structures with a new technology that uses a stainless steel cladding to make rebar resilient to corrosion. By eliminating corrosion, infrastructure lasts much longer, fewer repairs are required, and carbon emissions are reduced. The company’s technology is easily integrated into existing steelmaking processes to make America’s infrastructure more resilient, affordable, and sustainable over the next century.

*** and ***

Allium is also experimenting with other cladding materials and composites. Down the line, Jepeal sees Allium’s tech being used for things beyond rebar like train tracks, steel beams, and pipes. But he stresses the company’s focus on rebar will keep it busy for the foreseeable future.

“Almost all of our infrastructure has this corrosion problem, so it’s the biggest problem we could imagine solving with our set of skills,” Jepeal says. “Tunnels, bridges, roads, industrial buildings, power plants, chemical factories — all of them have this problem.”

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Considering that the Gooferment is up to “its elbows” in bridge construction, it’s no wonder that the bridges are falling down.  If an entrepreneur was “selling bridges”, then we would have bridges that would last virtually forever.  But politicians and bureaucrats have no incentive to solve the problems of the world. 

Argh!

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ENGINEERING:The interlocking bricks of glass are like future building Legos

Friday, September 27, 2024

https://news.mit.edu/2024/engineers-3d-print-sturdy-glass-bricks-building-structures-0920?utm_placement=newsletter

MIT News | Massachusetts Institute of Technology
Engineers 3D print sturdy glass bricks for building structures

  • The interlocking bricks, which can be repurposed many times over, can withstand similar pressures as their concrete counterparts.

Jennifer Chu | MIT News
Publication Date: September 20, 2024 

*** begin quote ***

What if construction materials could be put together and taken apart as easily as LEGO bricks? Such reconfigurable masonry would be disassembled at the end of a building’s lifetime and reassembled into a new structure, in a sustainable cycle that could supply generations of buildings using the same physical building blocks.

That’s the idea behind circular construction, which aims to reuse and repurpose a building’s materials whenever possible, to minimize the manufacturing of new materials and reduce the construction industry’s “embodied carbon,” which refers to the greenhouse gas emissions associated with every process throughout a building’s construction, from manufacturing to demolition.

Now MIT engineers, motivated by circular construction’s eco potential, are developing a new kind of reconfigurable masonry made from 3D-printed, recycled glass. Using a custom 3D glass printing technology provided by MIT spinoff Evenline, the team has made strong, multilayered glass bricks, each in the shape of a figure eight, that are designed to interlock, much like LEGO bricks.

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As a fat old white guy injineer with a 7 year old boy, I will quibble that Lego blocks are easy to assemble and disassemble.  Not withstanding this critique, I find this very interesting.  Almost as good as that African handy fella making buildings out of soda bottles filled with water and mud.  Or the other fellow who made indoor daylights from water filled soda bottles.  

I was taught that “engineers turn interesting ideas into something valuable and useable.

Sounds like these people at MIT have a winner.

Very impressive.

I look forward to the practical use of these new (fangled) “bricks”.

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