"These findings pose a two-fold challenge for #decarbonizing the #steel & #cement industries..governments need to expand essential infrastructure rapidly; on the other hand, industries need to prepare for the risk of deployment failures, rather than solely waiting for large-scale #infrastructure to emerge. Our feasible supply scenarios provide compelling evidence of the urgency of demand-side actions & establish benchmarks for the required level of #resource efficiency"
“Concrete is also one of the more intractable climate problems.
“It is responsible for 9 percent of global industrial water withdrawals, and the cement that goes into making it contributes up to 8 percent of global carbon dioxide emission.
How Coal Fly Ash Is Reducing CO2 Emissions and Improving Concrete https://www.powermag.com/how-coal-fly-ash-is-reducing-co2-emissions-and-improving-concrete/
Die Flugasche der Kohlekraftwerke ist eines der technischen Äquivalente der puzzolanischen Vulkanasche aus dem gleichnamigen Ort bei Neapel, die bereits im Opus caementicium verwendet wurde. Von Anfang an mit Ziegelmehl und -bruchstücken Kohlekraftwerke wurden stillgelegt, aber man kann die deponierte Flugasche nutzen. Vulkanasche oder Tuff kämen auch infrage.
Scientists show direct link between polluting companies & #wildfires in #NorthAmerica. “Pablo Ortiz-Partida of the Union of Concerned Scientists says #CarbonPollution is making the region hotter & drier, which creates more fuel for fires…
His team found that nearly 40% of the area burned by forest fires in western North America over a 25-year period can be attributed to…carbon pollution…by 88 major #FossilFuel producers & #cement makers.” | Yale Climate Connections https://yaleclimateconnections.org/2023/11/scientists-show-direct-link-between-polluting-companies-and-wildfires-in-north-america/
I expect our esteemed Government will regard this article as extremist:-
'The #UK is responsible for nearly twice as much global warming as previously thought, due to its colonial history, Carbon Brief analysis shows.'
Holiday musings… (While gazing at 2yr old, newly built and degraded concrete pylons keeping the elevated 1-train subway running)
#NYC is an OG big city… how can it maintain & improve its infrastructure remain so?
#cement is a major contributor to #GreenHouseGas emissions but needed to keep cities working
We’d be better off if it didn’t need to replacing so much, eg pics. Romans build #concrete to last millennia while modern lasts a few yrs(!!)
Why Concrete Is Going Green To Help The Building Sector Cut Emissions https://www.forbes.com/sites/jamiehailstone/2023/11/20/why-concrete-is-going-green-to-help-the-building-sector-cut-emissions/?sh=4462416c3ecd
Der Artikel stellt die beiden start-ups Paebbl (Dk,Swe) und Forterra (US) vor, die CO2 durch Carbonatisierung von Olivine bzw durch Recarbonatisierung als Mineralien binden. = extrem beschleunigte Verwitterungsreaktion
Fortera Corporation — https://forteraglobal.com/
Heat-related deaths across the world could increase almost fivefold by the middle of the century.
"Where are the trees? Where is the green cover? Everything is becoming cemented."
#FossilFuels #SilentKiller #Sydney #roads #DePaving #shade #cement #HeatExposure #HeatIslands #ClimateActionNow #ExtremeHeatwaves
📆 Jan 21, 2022 #Cement mixed in #space 🌌 has different properties than cement mixed on #Earth 🌍. The #Microgravity Investigation of Cement Solidification (#MICS) study conducted aboard the International #SpaceStation recently published results examining Lunar 🌙 #regolith simulant (#JSC1A) for its potential use as a #lunar construction 🏗️ material. https://www.nasa.gov/missions/station/five-space-station-research-results-contributing-to-deep-space-exploration
📆 Oct 26, 2020 20 #scientific and #technological breakthroughs achieved as a result of #SpaceStation #science https://www.nasa.gov/missions/station/20-breakthroughs-from-20-years-of-science-aboard-the-international-space-station
Fossil fuel fanned fires are consuming native forests and plantations
Logging also makes forests more flammable
"Our research...shows that between 2001 and 2021, severe wildfires worldwide destroyed timber-producing forests equivalent to an area the size of Great Britain. Severe fires reach the tree tops and consume the forest canopy."
"Plantations, like some logged and regenerated native forests, can be highly flammable...This is especially problematic where logging makes forests more prone to burning in a high-severity wildfire.
"...Logging makes forests more flammable. This has been documented in parts of southeastern Australia, where intact forest always burnt at lower severity than harvested forest across the entire footprint of the Black Summer fires. Forests that have been subject to thinning also are at risk of high-severity wildfire."
"Where possible, fast-growing timber species should be introduced in plantations, sparing large tracts of old-growth forest elsewhere to support biodiversity and carbon stocks. However, timber plantations are highly flammable. Shifting production in fire-prone regions from monocultures of highly flammable timber species (for example Pinus radiata, Eucalyptus globulus) towards heterogenous mosaics of less-flammable species of varying ages will be vital in reducing timber losses through burning."
Logging makes forests more flammable:
Nonlinear Effects of Stand Age on Fire Severity
Forests that have been subject to thinning also are at risk of high-severity wildfire.
Logging elevated the probability of high-severity fire in the 2019–20 Australian forest fires
"Bottles to bridges: Glass-based concrete makes for a greener crossing"
#SCOTUS IS FAKE🇺🇸JUSTICE
HERITAGE WHORES HAVE
During War Times.
A Pandemic of🇺🇸WEALTHIEST Lawyers use POWERS
During War Times.
🤖🐘🤖PLAY GOD 4👹POWERS.
VIOLENT CORPORATE POWERS WILL ENJOY A MUCH DESERVED HELL.
ROOF UNDER THE SKY 20230831288RT1
#architecture #cement #roof #symmetry #tiles #art #artbooster #artist #artistsonmastodon #artmatters #artonmastodon #artwork #ayearforart #buyartnotcandy #buyintoart #fediart #fedigiftdhop #homedecor #kunst #mastoart #mastodon #photo #photography #photos #photographs #photographie #photographyisart #photooftheday #pic #pics #picture #pictures #smallbusiness #wallart
Fine Art Prints
Possibly progress regarding the reduction of CO2 emissions from #cement:
"In September, the company [ #Sublime ] announced its low carbon, scalable, and drop-in replacement for traditional cement in concrete has obtained the ASTM C1157 designation …
This week, Sublime told … [that] testing validated that the Sublime Systems process can eliminate more than 90% of the global warming potential of cement manufacturing, when compared to today’s ordinary Portland cement"
"#Cement, #steel and #chemicals are some of the most extensively produced materials in the world. They’re also among the largest global sources of #CarbonEmissions — manufacturing them releases more CO2 into the atmosphere each year than all of the emissions generated by the United States.
These materials are so emissions-intensive not just because of how they’re made, but also because of how much of them the world uses."
"The #EuropeanUnion launched on Sunday the first phase of the world's first system to impose CO2 #EmissionsTariffs on imported #steel, #cement and other goods as it tries to stop more polluting foreign products from undermining its green transition."
"The bloc will not begin collecting any CO2 emission charges at the border until 2026."
What are they scared of?
There isn't a single aspect of #modernity that we can afford to overlook when considering how we can reduce or eliminate our releasing of #GreenhouseGasses into the #atmosphere including, but not limited to, #carbon, the most abundant of such #gasses #human activity produces.
@dan613 @catarinac There's a lot more to #SustainableArchitecture & #SustainableMaterials though than just #Cement , #Concrete and #Wood, e.g. #Bamboo , #Wattle & #Daub , #CobBuilding , #Mudbrick #AdobeBuilding , #RammedEarth , #CompressedEarth , #Hempcrete , #Aircrete and #Aerogel from the top of my non-expert head.
#PixelArt #Hobby #PlanetEarth #Climatology #ClimateChange #Atmosphere #Troposphere #AirQuality #Pollution #GreenhouseGas #CarbonDioxide #Methane #FossilFuels #Cement #Deforestation #Chemistry #EnvironmentalEducation #Sustainability #LibreCulture
"Certification For Low Carbon Cement
… Meeting that standard means Sublime cement can be used to make concrete that meets or exceeds applicable US and international building codes, unlocking a path for it to replace ordinary Portland cement at scale to massively lower the carbon output
… instead of using limestone as the primary ingredient — which releases carbon dioxide when heated — the Sublime process uses a variety of no n-carbonate raw materials"
The future of our cement industry could be (eco)designed in Europe [Promoted content] https://www.euractiv.com/section/energy-environment/opinion/the-future-of-our-cement-industry-could-be-ecodesigned-in-europe/?utm_source=dlvr.it&utm_medium=mastodon #cement #climate #concrete #construction #decarbonise
A Carbon-neutral built environment by 2050 [Promoted content] https://www.euractiv.com/section/energy-environment/opinion/a-carbon-neutral-built-environment-by-2050/?utm_source=dlvr.it&utm_medium=mastodon #2050carbonneutrality #carbonneutrality #cement #decarbonisation
Cement is the world’s most widely used building material but also one of the most carbon-intensive. It accounts for 8 per cent of global CO2 emissions. Some companies use innovative technologies to decarbonise cement, such as carbon capture and utilization, low-carbon concrete, and alternative binders.
Stuff Matters by Mark Miodownik
It's a book about material science that opens with the narrator getting stabbed! What more could you ask for‽
From the multiple crystal forms of chocolate to the chemical reactions that make cement, Mark combines a love of materials with excellent narrative and takes you through a small sampling of the amazing materials that make our everyday life possible. Stuff matters, indeed.
Energy-storing supercapacitor from #cement, water, black carbon
Date: July 31, 2023
Engineers have created a 'supercapacitor' made of ancient, abundant materials, that can store large amounts of energy. Made of just cement, water, and carbon black (which resembles powdered charcoal), the device could form the basis for inexpensive systems that store intermittently #renewable energy, such as #solar or #wind energy.
"'The material is fascinating,' Masic says, 'because you have the most-used human-made material in the world, cement, that is combined with carbon black, that is a well-known historical material -- the Dead Sea Scrolls were written with it. You have these at least two-millennia-old materials that when you combine them in a specific manner you come up with a conductive nanocomposite, and that's when things get really interesting.'
"As the mixture sets and cures, he says, 'The water is systematically consumed through cement hydration reactions, and this hydration fundamentally affects nanoparticles of carbon because they are hydrophobic (water repelling).' As the mixture evolves, 'the carbon black is self-assembling into a connected conductive wire,' he says. The process is easily reproducible, with materials that are inexpensive and readily available anywhere in the world. And the amount of carbon needed is very small -- as little as 3 percent by volume of the mix -- to achieve a percolated carbon network, Masic says.
"Supercapacitors made of this material have great potential to aid in the world's transition to renewable energy, Ulm says. The principal sources of emissions-free energy, wind, solar, and #tidal power, all produce their output at variable times that often do not correspond to the peaks in electricity usage, so ways of storing that power are essential. 'There is a huge need for big energy storage,' he says, and existing batteries are too expensive and mostly rely on materials such as #lithium, whose supply is limited, so cheaper alternatives are badly needed. 'That's where our technology is extremely promising, because cement is ubiquitous,' Ulm says.
"The team calculated that a block of nanocarbon-black-doped concrete that is 45 cubic meters (or yards) in size -- equivalent to a cube about 3.5 meters across -- would have enough capacity to store about 10 kilowatt-hours of energy, which is considered the average daily electricity usage for a household. Since the concrete would retain its strength, a house with a foundation made of this material could store a day's worth of energy produced by solar panels or windmills and allow it to be used whenever it's needed. And, supercapacitors can be charged and discharged much more rapidly than batteries.
"There is a tradeoff between the storage capacity of the material and its structural strength, they found. By adding more carbon black, the resulting supercapacitor can store more energy, but the concrete is slightly weaker, and this could be useful for applications where the concrete is not playing a structural role or where the full strength-potential of concrete is not required. For applications such as a foundation, or structural elements of the base of a wind turbine, the 'sweet spot' is around 10 percent carbon black in the mix, they found.
"Another potential application for carbon-cement supercapacitors is for building concrete roadways that could store energy produced by solar panels alongside the road and then deliver that energy to electric vehicles traveling along the road using the same kind of technology used for wirelessly rechargeable phones. A related type of car-recharging system is already being developed by companies in Germany and the Netherlands, but using standard batteries for storage.
"Initial uses of the technology might be for isolated homes or buildings or shelters far from grid power, which could be powered by solar panels attached to the cement supercapacitors, the researchers say."
Cement usage dates back to 6,500 BCE. Carbon black was the ink used in writing the Dead Sea Scrolls. What would happen if you put the two together? Engineers recently mixed these two ancient materials in electrolyte-infused water and may have solved a modern energy dilemma. More from Popular Science: https://flip.it/YnvXXF
#Science #Earth #Cement #Energy
I asked you a while back which decarbonization topic I should pick up next, you voted for cement. It took a bit longer, because it's complicated... Cement is generally seen as one of the hardest sectors to decarbonize. The reason is chemistry: In the production process calcium carbonate (CaCO3) is turned into calcium oxide (CaO), producing CO2 as a byproduct. https://industrydecarbonization.com/news/cements-future-could-be-a-combination-of-carbon-capture-and-electrification.html #ccs #cement 🧵
Innovation for Carbon Neutrality in the Cement Industry [Promoted content] https://www.euractiv.com/section/energy-environment/video/innovation-for-carbon-neutrality-in-the-cement-industry/?utm_source=dlvr.it&utm_medium=mastodon #carbonneutrality #CEMBUREAU #cement #sustainability
Alliance for Low-Carbon Cement & Concrete – The future depends on how we build it [Promoted content] https://www.euractiv.com/section/energy-environment/opinion/alliance-for-low-carbon-cement-concrete-the-future-depends-on-how-we-build-it/?utm_source=dlvr.it&utm_medium=mastodon #cement #concrete #decarbonise
In its most common #terrestrial 🌍 formulation, #concrete is held together with a binder made from #cement powder and water. But cement is made mostly from limestone—a mineral not present on #Mars 🔴 —and Martian water 💧 is rare and precious. An alternative is concrete bound together by #sulfur, of which #Mars has plenty. Two samples' fracture toughnesses 💪 were even higher than that of cement-based terrestrial concrete https://pubs.aip.org/physicstoday/Online/41866/Martian-concrete-could-be-tough-stuff
Influence of martian soil simulant on microstructural heterogeneity and mechanical response of martian concretes https://www.sciencedirect.com/science/article/pii/S0093641322001458?via%3Dihub
There's a working paper out the economics of cutting CO2 emissions from the manufacture of Portland cement.
"optimal abatement levels are highly sensitive to carbon prices in the range of €80-150/t. That is, cement producers would optimally reduce their emissions by 78% at €100/tCO2, while €155/tCO2 provide incentives sufficient for near-full decarbonization"
Which material will become Europe’s future construction mainstay? https://www.euractiv.com/section/buildings/news/which-material-will-become-europes-future-construction-mainstay/?utm_source=dlvr.it&utm_medium=mastodon #biobasedbuildingmaterials #cement #climateneutrality #concrete
I was once told that the pervasive use of #concrete is one of the reasons why the #construction industry is far from #sustainability when it comes to #ecology and #CO2 #emissions, but I did not know exactly why, and how the numbers break down. This video does a fantastic job at explaining it. We need to rethink #architecture and use a LOT more wood with CLT for structural / civil #engineering, instead of cooking #cement. https://www.youtube.com/watch?v=asLWBGtAhZk
Is there a role for concrete in sustainable construction? https://www.euractiv.com/section/buildings/special_report/is-there-a-role-for-concrete-in-sustainable-construction/?utm_source=dlvr.it&utm_medium=mastodon #cement #circulareconomy #concrete #sustainableconstruction
The production of #cement, an ingredient in #concrete, accounts for roughly 8% of the world’s annual #carbon #dioxide emissions ( #CO2 ), making it a significant target of #greenhouse gas emissions reduction goals. Toward those efforts, the Rice lab of chemist James Tour used flash Joule heating to remove #toxic heavy metals from fly ash
#Chemistry #Engineering #Environmental #sflorg
#Green #H2 is needed for zero #CO2 #cement and #steel production & long haul #flight. It has few surface #transport applications, due to delivering less than a third the energy direct to wheel per green KWh generated compared to use of same delivered via grid, inverters and rechargeable batteries.
Green H2 needs to be made in quantity using #electrolysis when there is more than enough peak renewable electricity generation for more pressing demands.
#Shoutout to this #resilient #snapdragon #plant that found a crack in #cement , #SelfSeeded & #grew all by itself 👏 #YouGoWeePlant - You just #GrowOn ❤
It's not looking the prettiest ATM because some pests have eaten leaves but I #respect the #determination to #grow in unexpected places.
#zone8 #plantLover #gardening #YYJGardeners #yyj #VictoriaBC #vanisle #VancouverIsland #PNW #PacificNorthwest #HardyPlants #AlmostSpring #Wsanec #Saanich #TheWillToSurvive #Inspiring #SimpleJoys #PlantPower
Roads become rivers
“From Friday’s rain event, some of the most shocking images were of #cars and buses trying to wade through flooded roads and busways. The irony is that the #roads themselves are a significant contributor to the #flooding."
"The stark reality is the #flooding we experienced this week, and arguably the storm itself, are of our own making. We’ve built a supercity covered in impervious surfaces, expanded the built environment across sensitive (and flood-prone) areas, and created massive greenhouse gas #emissions destabilising the #climate.”
There's ongoing #native trees/plants & seagrass planting restoration & invasives removal work happening in this park. There will be volunteer work parties throughout the year.
#Saanich #TodInet #trees #creek #DisabledHiker #CellphonePhotos #MyNaturePhotos #MyNaturePhotos #Samsung8 #forest #vanisle #VancouverIsland #PNW #PacificNorthwest #BritishColumbia #Canada #ReclaimedByNature
Interesting and worrying read...
Concrete’s Carbon Footprint Is Huge. It’s Time To Build Differently
Let’s nerd out for a second 💃
This is a #cement kiln. It's a giant rotating oven that heats rocks. The material that comes out of the kiln allows us to make cement. Cement is the binding ingredient in concrete, and we use concrete to build *everything*. We use more concrete than any other substance except water 🤯
Cement manufacturing has historically been thought of as “hard to abate”. That is, it’s really hard to change it, no matter how much R&D we put into it. Well, until now!
... and in #Good News:
"Using end-of-life tyres in cement manufacturing helps to solve a significant waste problem in NZ as well as improve the sustainability of a key building material. Up to 50% of the 6.3 million waste tyres created in NZ each year will now be used in cement manufacturing at the Golden Bay Cement plant instead of going into landfill."
#RossTaylor, CEO of Fletcher Building, quoted in 'Business North', vol 20, issue 03, 2021