Concrete industry may have found a substitute that entirely eliminates the requirement for Portland Cement binder. The process for producing Portland Cement is high temperature and extremely energy intensive, resulting in lots of CO2 emission. Ironically
the new process uses "novel calcium silicate formulations generated from waste materials such as fly ash from coal-fired power plants.” This is not entirely new since the concrete industry has been using fly ash in their mixes forever. It conserves
Portland Cement, which is relatively pricey compared to the other ingredients, and the fly ash makes the final product significantly stronger than a mix without it. And even that technique is not entirely new since it simply leverages the several
thousand year old discovery by the Romans that volcanic ash strengthened their final product.
Article doesn't put any numbers on their 'carbon sucking' performance, probably because it's fairly modest. Even conventional concrete absorbs CO2 from the air. The picture of the one construction product using the new concrete does not instill
confidence with all the lally columns they have there...

https://cleantechnica.com/2023/10/11/carbon-capture-pipeline-rendered-obsolete-by-carbon-sucking-concrete/

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Wednesday, October 18, 2023 at 12:27:46 AM UTC+11, Fred Bloggs wrote:

Concrete industry may have found a substitute that entirely eliminates the requirement for Portland Cement binder. The process for producing Portland Cement is high temperature and extremely energy intensive, resulting in lots of CO2 emission.

Ironically the new process uses "novel calcium silicate formulations generated from waste materials such as fly ash from coal-fired power plants.” This is not entirely new since the concrete industry has been using fly ash in their mixes forever. It
conserves Portland Cement, which is relatively pricey compared to the other ingredients, and the fly ash makes the final product significantly stronger than a mix without it. And even that technique is not entirely new since it simply leverages the
several thousand year old discovery by the Romans that volcanic ash strengthened their final product.

Article doesn't put any numbers on their 'carbon sucking' performance, probably because it's fairly modest. Even conventional concrete absorbs CO2 from the air. The picture of the one construction product using the new concrete does not instill

confidence with all the lally columns they have there...

https://cleantechnica.com/2023/10/11/carbon-capture-pipeline-rendered-obsolete-by-carbon-sucking-concrete/

What's your problem with lally columns?

https://www.thisoldhouse.com/foundations/reviews/what-is-a-lally-column

--
Bill Sloman, Sydney

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Tuesday, October 17, 2023 at 9:47:28 AM UTC-4, Anthony William Sloman wrote:

On Wednesday, October 18, 2023 at 12:27:46 AM UTC+11, Fred Bloggs wrote:

Concrete industry may have found a substitute that entirely eliminates the requirement for Portland Cement binder. The process for producing Portland Cement is high temperature and extremely energy intensive, resulting in lots of CO2 emission.

Ironically the new process uses "novel calcium silicate formulations generated from waste materials such as fly ash from coal-fired power plants.” This is not entirely new since the concrete industry has been using fly ash in their mixes forever. It
conserves Portland Cement, which is relatively pricey compared to the other ingredients, and the fly ash makes the final product significantly stronger than a mix without it. And even that technique is not entirely new since it simply leverages the
several thousand year old discovery by the Romans that volcanic ash strengthened their final product.

Article doesn't put any numbers on their 'carbon sucking' performance, probably because it's fairly modest. Even conventional concrete absorbs CO2 from the air. The picture of the one construction product using the new concrete does not instill

confidence with all the lally columns they have there...

https://cleantechnica.com/2023/10/11/carbon-capture-pipeline-rendered-obsolete-by-carbon-sucking-concrete/

What's your problem with lally columns?

https://www.thisoldhouse.com/foundations/reviews/what-is-a-lally-column

Those are actually temporary lally columns with adjustable screw jack at the base. Looks like a lot of the slabs can't support their own weight.

--
Bill Sloman, Sydney

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

tirsdag den 17. oktober 2023 kl. 16.10.00 UTC+2 skrev Fred Bloggs:

On Tuesday, October 17, 2023 at 9:47:28 AM UTC-4, Anthony William Sloman wrote:

On Wednesday, October 18, 2023 at 12:27:46 AM UTC+11, Fred Bloggs wrote:

Concrete industry may have found a substitute that entirely eliminates the requirement for Portland Cement binder. The process for producing Portland Cement is high temperature and extremely energy intensive, resulting in lots of CO2 emission.

Ironically the new process uses "novel calcium silicate formulations generated from waste materials such as fly ash from coal-fired power plants.” This is not entirely new since the concrete industry has been using fly ash in their mixes forever. It
conserves Portland Cement, which is relatively pricey compared to the other ingredients, and the fly ash makes the final product significantly stronger than a mix without it. And even that technique is not entirely new since it simply leverages the
several thousand year old discovery by the Romans that volcanic ash strengthened their final product.

Article doesn't put any numbers on their 'carbon sucking' performance, probably because it's fairly modest. Even conventional concrete absorbs CO2 from the air. The picture of the one construction product using the new concrete does not instill

confidence with all the lally columns they have there...

https://cleantechnica.com/2023/10/11/carbon-capture-pipeline-rendered-obsolete-by-carbon-sucking-concrete/

What's your problem with lally columns?

https://www.thisoldhouse.com/foundations/reviews/what-is-a-lally-column

Those are actually temporary lally columns with adjustable screw jack at the base. Looks like a lot of the slabs can't support their own weight.

they are pouring the top slab, it can't carry it self until it is cured, the slabs can carry their own weight and their rated load, they are not meant to carry the slaps above

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Tue, 17 Oct 2023 06:27:41 -0700 (PDT), Fred Bloggs <bloggs.fredbloggs.fred@gmail.com> wrote:

Concrete industry may have found a substitute that entirely eliminates the requirement for Portland Cement binder. The process for producing Portland Cement is high temperature and extremely energy intensive, resulting in lots of CO2 emission.

Ironically the new process uses "novel calcium silicate formulations generated from waste materials such as fly ash from coal-fired power plants.� This is not entirely new since the concrete industry has been using fly ash in their mixes forever. It
conserves Portland Cement, which is relatively pricey compared to the other ingredients, and the fly ash makes the final product significantly stronger than a mix without it. And even that technique is not entirely new since it simply leverages the
several thousand year old discovery by the Romans that volcanic ash strengthened their final product.

Article doesn't put any numbers on their 'carbon sucking' performance, probably because it's fairly modest. Even conventional concrete absorbs CO2 from the air. The picture of the one construction product using the new concrete does not instill

confidence with all the lally columns they have there...

https://cleantechnica.com/2023/10/11/carbon-capture-pipeline-rendered-obsolete-by-carbon-sucking-concrete/

Yuk. Terrible writing.

How can the interior structure of a building continue to absorb CO2?

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Tuesday, October 17, 2023 at 12:15:45 PM UTC-4, John Larkin wrote:

On Tue, 17 Oct 2023 06:27:41 -0700 (PDT), Fred Bloggs <bloggs.fred...@gmail.com> wrote:

Concrete industry may have found a substitute that entirely eliminates the requirement for Portland Cement binder. The process for producing Portland Cement is high temperature and extremely energy intensive, resulting in lots of CO2 emission.

Ironically the new process uses "novel calcium silicate formulations generated from waste materials such as fly ash from coal-fired power plants.” This is not entirely new since the concrete industry has been using fly ash in their mixes forever. It
conserves Portland Cement, which is relatively pricey compared to the other ingredients, and the fly ash makes the final product significantly stronger than a mix without it. And even that technique is not entirely new since it simply leverages the
several thousand year old discovery by the Romans that volcanic ash strengthened their final product.

Article doesn't put any numbers on their 'carbon sucking' performance, probably because it's fairly modest. Even conventional concrete absorbs CO2 from the air. The picture of the one construction product using the new concrete does not instill

confidence with all the lally columns they have there...

https://cleantechnica.com/2023/10/11/carbon-capture-pipeline-rendered-obsolete-by-carbon-sucking-concrete/

Yuk. Terrible writing.

How can the interior structure of a building continue to absorb CO2?

You would think they would have convection fins on the exterior the absorption was so good.

Speaking of which, they have found corrugation patterns together with specialty reflective paints significantly reduce heat gain of the structure. That would be heat gain due to sun.

https://www.pinterest.com/pin/corrugated-concrete-walls-cover-this-house-in-texas--179299628903138349/

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Tuesday, October 17, 2023 at 11:55:52 AM UTC-4, Lasse Langwadt Christensen wrote:

tirsdag den 17. oktober 2023 kl. 16.10.00 UTC+2 skrev Fred Bloggs:

On Tuesday, October 17, 2023 at 9:47:28 AM UTC-4, Anthony William Sloman wrote:

On Wednesday, October 18, 2023 at 12:27:46 AM UTC+11, Fred Bloggs wrote:

Concrete industry may have found a substitute that entirely eliminates the requirement for Portland Cement binder. The process for producing Portland Cement is high temperature and extremely energy intensive, resulting in lots of CO2 emission.

Ironically the new process uses "novel calcium silicate formulations generated from waste materials such as fly ash from coal-fired power plants.” This is not entirely new since the concrete industry has been using fly ash in their mixes forever. It
conserves Portland Cement, which is relatively pricey compared to the other ingredients, and the fly ash makes the final product significantly stronger than a mix without it. And even that technique is not entirely new since it simply leverages the
several thousand year old discovery by the Romans that volcanic ash strengthened their final product.

Article doesn't put any numbers on their 'carbon sucking' performance, probably because it's fairly modest. Even conventional concrete absorbs CO2 from the air. The picture of the one construction product using the new concrete does not instill

confidence with all the lally columns they have there...

https://cleantechnica.com/2023/10/11/carbon-capture-pipeline-rendered-obsolete-by-carbon-sucking-concrete/

What's your problem with lally columns?

https://www.thisoldhouse.com/foundations/reviews/what-is-a-lally-column

Those are actually temporary lally columns with adjustable screw jack at the base. Looks like a lot of the slabs can't support their own weight.

they are pouring the top slab, it can't carry it self until it is cured, the slabs can carry their own weight and their rated load, they are not meant to carry the slaps above

Looks like they're pouting slabs all over the place. Temporary bracing makes sense when they can't wait 30-days for a full cure between stages of construction.

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

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The arsehole John Larkin <jl@997PotHill.com> persisting in being an Off-topic troll...

--
John Larkin <jl@997PotHill.com> wrote:

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NNTP-Posting-Date: Tue, 17 Oct 2023 16:15:26 +0000
From: John Larkin <jl@997PotHill.com>
Newsgroups: sci.electronics.design
Subject: Re: Carbon-Sucking Concrete
Date: Tue, 17 Oct 2023 09:15:16 -0700
Organization: Highland Tech
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--- SoupGate-Win32 v1.05
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On Tuesday, October 17, 2023 at 9:15:45 AM UTC-7, John Larkin wrote:

On Tue, 17 Oct 2023 06:27:41 -0700 (PDT), Fred Bloggs <bloggs.fred...@gmail.com> wrote:

https://cleantechnica.com/2023/10/11/carbon-capture-pipeline-rendered-obsolete-by-carbon-sucking-concrete/

Yuk. Terrible writing.

How can the interior structure of a building continue to absorb CO2?

By diffusion of the gas into the surface?
Interior structure doesn't get a lot of direct sunlight, but it's not in
a vacuum.

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

onsdag den 18. oktober 2023 kl. 02.12.05 UTC+2 skrev whit3rd:

On Tuesday, October 17, 2023 at 9:15:45 AM UTC-7, John Larkin wrote:

On Tue, 17 Oct 2023 06:27:41 -0700 (PDT), Fred Bloggs <bloggs.fred...@gmail.com> wrote:

https://cleantechnica.com/2023/10/11/carbon-capture-pipeline-rendered-obsolete-by-carbon-sucking-concrete/

Yuk. Terrible writing.

How can the interior structure of a building continue to absorb CO2?

By diffusion of the gas into the surface?
Interior structure doesn't get a lot of direct sunlight, but it's not in
a vacuum.

afaiu carbonation of concrete only happens at certain humidities and in many cases
it is a bad thing because it causes steel reinforcement to rust

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Tue, 17 Oct 2023 17:12:00 -0700 (PDT), whit3rd <whit3rd@gmail.com>
wrote:

On Tuesday, October 17, 2023 at 9:15:45?AM UTC-7, John Larkin wrote:

On Tue, 17 Oct 2023 06:27:41 -0700 (PDT), Fred Bloggs
<bloggs.fred...@gmail.com> wrote:

https://cleantechnica.com/2023/10/11/carbon-capture-pipeline-rendered-obsolete-by-carbon-sucking-concrete/

Yuk. Terrible writing.

How can the interior structure of a building continue to absorb CO2?

By diffusion of the gas into the surface?
Interior structure doesn't get a lot of direct sunlight, but it's not in
a vacuum.

The spaces between the walls and the concrete will soon be depleted of
CO2.

And concrete needs a fireproofing coating.

It's a silly idea.

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Wednesday, October 18, 2023 at 3:15:45 AM UTC+11, John Larkin wrote:

On Tue, 17 Oct 2023 06:27:41 -0700 (PDT), Fred Bloggs <bloggs.fred...@gmail.com> wrote:

<snip>

How can the interior structure of a building continue to absorb CO2?

Concrete is porous, and CO2 can diffuse through it and get absorbed quite rapidly. Hydrogen famously diffuses through solid steel and glass, as you;d know if you'd ever been involved in high vacuum work. It doesn't go fast, or in huge volumes, but it
keep on coming in.

--
Bill Sloman, Sydney

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Wednesday, October 18, 2023 at 1:25:15 PM UTC+11, John Larkin wrote:

On Tue, 17 Oct 2023 17:12:00 -0700 (PDT), whit3rd <whi...@gmail.com>
wrote:

On Tuesday, October 17, 2023 at 9:15:45?AM UTC-7, John Larkin wrote:

On Tue, 17 Oct 2023 06:27:41 -0700 (PDT), Fred Bloggs
<bloggs.fred...@gmail.com> wrote:

https://cleantechnica.com/2023/10/11/carbon-capture-pipeline-rendered-obsolete-by-carbon-sucking-concrete/

Yuk. Terrible writing.

How can the interior structure of a building continue to absorb CO2?

By diffusion of the gas into the surface?
Interior structure doesn't get a lot of direct sunlight, but it's not in a vacuum.

The spaces between the walls and the concrete will soon be depleted of CO2.

They won't. The walls are even more porous than the the concretre

And concrete needs a fireproofing coating.

Which is also going to be porous/

It's a silly idea.

Which is to say that John Larkin is too silly to know that he doesn't know what he is talking about.

--
Bill Sloman, Sydney

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The arsehole whit3rd <whit3rd@gmail.com> persisting in being an Off-topic troll...

--
whit3rd <whit3rd@gmail.com> wrote:

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The idiot Lasse Langwadt Christensen <langwadt@fonz.dk> persisting in being an Off-topic troll...

--
Lasse Langwadt Christensen <langwadt@fonz.dk> wrote:

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The arsehole Anthony William Sloman <bill.sloman@ieee.org> persisting in being an Off-topic troll...

--
Anthony William Sloman <bill.sloman@ieee.org> wrote:

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The idiot John Larkin <jl@997PotHill.com> persisting in being an Off-topic troll...

--
John Larkin <jl@997PotHill.com> wrote:

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Subject: Re: Carbon-Sucking Concrete
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On Tuesday, October 17, 2023 at 8:49:37 PM UTC-4, Lasse Langwadt Christensen wrote:

onsdag den 18. oktober 2023 kl. 02.12.05 UTC+2 skrev whit3rd:

On Tuesday, October 17, 2023 at 9:15:45 AM UTC-7, John Larkin wrote:

On Tue, 17 Oct 2023 06:27:41 -0700 (PDT), Fred Bloggs <bloggs.fred...@gmail.com> wrote:

https://cleantechnica.com/2023/10/11/carbon-capture-pipeline-rendered-obsolete-by-carbon-sucking-concrete/

Yuk. Terrible writing.

How can the interior structure of a building continue to absorb CO2?

By diffusion of the gas into the surface?
Interior structure doesn't get a lot of direct sunlight, but it's not in
a vacuum.

afaiu carbonation of concrete only happens at certain humidities and in many cases
it is a bad thing because it causes steel reinforcement to rust

A fairly recent study out of Northeastern U. found that the planned lifetime of just about all the bare concrete infrastructure should be derated to 60% of the original projections. And that's just due to higher atmospheric CO2, combines with H2O to form
carbonic acid which corrodes the steel.

https://en.wikipedia.org/wiki/Concrete_degradation

There is advanced sealing technology that can prevent this, but it might not be practical everywhere since it must be refreshed periodically, and there's nothing it can do for structures already damaged. They need to go to fiber rebar in new builds.

In the meantime, the carbon fiber & epoxy concrete repair industry is taking off, and it's not just little stuff they can fix. It's very attractive to localities for staving off expensive infrastructure repairs that are becoming more and more frequent.

https://compositeenvisions.com/document/carbon-fiber-concrete-repair-an-unlikely-but-very-compatible-duo/

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Tuesday, October 17, 2023 at 7:25:15 PM UTC-7, John Larkin wrote:

On Tue, 17 Oct 2023 17:12:00 -0700 (PDT), whit3rd <whi...@gmail.com>
wrote:

On Tuesday, October 17, 2023 at 9:15:45?AM UTC-7, John Larkin wrote:

On Tue, 17 Oct 2023 06:27:41 -0700 (PDT), Fred Bloggs
<bloggs.fred...@gmail.com> wrote:

https://cleantechnica.com/2023/10/11/carbon-capture-pipeline-rendered-obsolete-by-carbon-sucking-concrete/

Yuk. Terrible writing.

How can the interior structure of a building continue to absorb CO2?

By diffusion of the gas into the surface?
Interior structure doesn't get a lot of direct sunlight, but it's not in
a vacuum.

The spaces between the walls and the concrete will soon be depleted of
CO2.

Nah; minerals absorbing CO2 are slow, diffusion of atmospheric gasses is fast.

And concrete needs a fireproofing coating.

You're thinking of wood. In terms of fire resistance, concrete IS the fireproofing (actually,
time delay of failure) for many steel structures.

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On Tue, 17 Oct 2023 17:12:00 -0700 (PDT), whit3rd <whit3rd@gmail.com>
wrote:

On Tuesday, October 17, 2023 at 9:15:45?AM UTC-7, John Larkin wrote:

On Tue, 17 Oct 2023 06:27:41 -0700 (PDT), Fred Bloggs
<bloggs.fred...@gmail.com> wrote:

https://cleantechnica.com/2023/10/11/carbon-capture-pipeline-rendered-obsolete-by-carbon-sucking-concrete/

Yuk. Terrible writing.

How can the interior structure of a building continue to absorb CO2?

By diffusion of the gas into the surface?

Through walls? How much is that going to Save The Earth? Probably not
a picokelvin.

Interior structure doesn't get a lot of direct sunlight, but it's not in
a vacuum.

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The arsehole Fred Bloggs <bloggs.fredbloggs.fred@gmail.com> persisting in being an Off-topic troll...

--
Fred Bloggs <bloggs.fredbloggs.fred@gmail.com> wrote:

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The idiot whit3rd <whit3rd@gmail.com> persisting in being an Off-topic troll...

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The idiot john larkin <jl@650pot.com> persisting in being an Off-topic troll...

--
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On Thursday, October 19, 2023 at 6:29:00 AM UTC+11, john larkin wrote:

On Tue, 17 Oct 2023 17:12:00 -0700 (PDT), whit3rd <whi...@gmail.com>
wrote:

On Tuesday, October 17, 2023 at 9:15:45?AM UTC-7, John Larkin wrote:

On Tue, 17 Oct 2023 06:27:41 -0700 (PDT), Fred Bloggs
<bloggs.fred...@gmail.com> wrote:

https://cleantechnica.com/2023/10/11/carbon-capture-pipeline-rendered-obsolete-by-carbon-sucking-concrete/

Yuk. Terrible writing.

How can the interior structure of a building continue to absorb CO2?

By diffusion of the gas into the surface?

Through walls? How much is that going to Save The Earth? Probably not a picokelvin.

As if John Larkin had a clue,

Interior structure doesn't get a lot of direct sunlight, but it's not in a vacuum.

Far from it. Fires depend on oxygen, but the insides of a building burn merrily even when the oxygen has to diffuse in through the walls.

--
Bill Sloman, Sydney

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The arsehole Anthony William Sloman <bill.sloman@ieee.org> persisting in being an Off-topic troll...

--
Anthony William Sloman <bill.sloman@ieee.org> wrote:

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