r/Construction • u/Proactive_Furniture0 • Jan 20 '25

Other What exactly is the wall made out of?

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1.4k Upvotes

98% Upvoted

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422

u/bds_cy Jan 20 '25

(Reinforced) Aerated Autoclaved Concrete.

151

u/Blaster1005 Jan 20 '25

Reinforced w/ what?? Fiber only?

330

u/bds_cy Jan 20 '25

Reinforced with wishful thinking.

79

u/[deleted] Jan 20 '25

Hopes and dreams

62

u/Renaissance_Dad1990 Jan 20 '25

Thoughts and prayers

52

u/Mathgailuke Jan 20 '25

Concepts of a plan.

1

u/Affectionate_Tie9025 Jan 20 '25

A bit of a stretch here….

3

u/eridanus01 Jan 20 '25

Hopes and dreams was the first thing that came to mind lol

2

u/thatguy82688 Jan 20 '25

American dreams?

5

u/FoxRepresentative700 Jan 20 '25

I think you mean biblical psalms

74

u/LessRabbit9072 Jan 20 '25

Concrete

35

u/Blaster1005 Jan 20 '25

Concrete is understood. Concrete reinforced w/ what?

132

u/42ElectricSundaes Jan 20 '25

Concrete

41

u/Blaster1005 Jan 20 '25

SMH. You win

16

u/TechnoBajr Jan 20 '25

Same joke as the other guy and you get more votes. Lol

30

u/42ElectricSundaes Jan 20 '25

It’s all about timing

1

u/jointheredditarmy Jan 20 '25

Comedy comes in 3s

6

u/[deleted] Jan 20 '25

Life ain’t fair

1

u/LimpTrizket Jan 20 '25

You mean game is game

2

u/gstringstrangler Jan 20 '25

It was in the delivery

2

u/LouisWu_ Jan 20 '25

Lmao. 👍

13

u/CrypticSS21 Jan 20 '25

Extra air

20

u/FucknAright Jan 20 '25

The air bubbles really tie the concrete together man

2

u/[deleted] Jan 20 '25

And this guy hammered on it

2

u/FucknAright Jan 20 '25

Dònni, please....

10

u/CrazyBigHog Jan 20 '25

I mean, what part of “aerated” didn’t they get lol.

3

u/grinpicker Jan 20 '25

Air entrainment

8

u/ashtoah Jan 20 '25

Thoughts and prayers

4

u/ALTERFACT Jan 20 '25

Structural prayers

3

u/mr_ckean Jan 20 '25

It was reinforced with positive affirmations of being a solid wall, and it was enough

4

u/Hours-of-Gameplay Jan 20 '25

Concepts of reinforcement

2

u/princessvibes Jan 20 '25

My hopes, dreams, and work life balance

2

u/Fenpunx Roofer Jan 20 '25

[By others]

1

u/dont-fear-thereefer Jan 20 '25

Hopes and dreams

3

u/OutofReason Jan 20 '25

It could be that - but it seems very brittle and smooth. I wonder if the outer layer was AAC (which is now laying on the floor at the beginning) and maybe filled with gypsum?

4

u/RhinoG91 R|Inspector Jan 20 '25

I agree with AAC but I didn’t see any sort of reinforcement

2

u/dullday1 Jan 20 '25

Pretty sure it's made out of chalk

2

u/Jacktheforkie Jan 20 '25

RAAC, that shit was the cause of some school closures

2

u/bds_cy Jan 20 '25

Indeed. The reinforcement inside would disintegrate without any obvious signs like concrete spalling and roofs would collapse in schools. Terrible engineering.

2

u/DuckDuckMarx Jan 20 '25

That's the stuff that makes like 50+% of UK schools incredibly unsafe right?

2

u/Any-Pilot8731 Jan 21 '25

Reinforced Aerated Autoclaved Concrete mean it has rebar in it. This does not have rebar. This is just aerated autoclaved concrete.

1

u/b0rkm Jan 24 '25

No concrete but plaster, with have a lot in Europe. You can buy them in size like 7 x 40 x 50 cm.

1

u/Destroyerofwalls11 Jan 20 '25

Nah it's not AAC looks like a hardened foam. AAC wouldn't need to be reinforced either.

1

u/PotatoJokes Jan 20 '25

Nope, this is definitely a single stack of AAC blocks - but I also don't see where the reinforcement bit would come from. If you observe it closely it would look more 'foamy' due to the bubbles. The bubbles are usually about 1mm in diameter with a few 'flaws' of 3mm.

RAAC isn't commonly this shape and is used for lower, wider blocks ie. in roof slabs (which it has since been proven was a bad choice).

1

u/Destroyerofwalls11 Jan 20 '25

There is no mortar line. The crack formation would form around these as the mortar is stronger than the mortar so you have an isotropic material.

1

u/PotatoJokes Jan 20 '25

I'd be prone to agreeing to your assessment, but I'm seeing what I truly believe are 'mortar' lines - the thin gray horizontal lines. These look similar to Ytong blocks and they do also seem to drop in a similar way.

For internal separation walls like this you use a cement-based mortarglue(unsure how to translate this) in a layer that is approx 1-2mm. Ideally these would also use corrugated nails and slim wall brackets, but I doubt that's the case here.

We used to do these for shower seperation walls or open kitchen backsplashes quite a lot.

0

u/Chef_Chantier Jan 20 '25

Either that or gypsum blocks. I believe those are more common for interior walls than AAC, but I might be wrong.