AIRCRETE lightweight concrete | Everything you need to know

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Autoclaved aerated concrete, Aerated Cellular Concrete, Autoclaved Lightweight Concrete. This precast, porous, foam concrete building material goes by many different names.
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Link to my Patreon page: / belinda_carr
Chapters
0:00 Introduction
0:17 How its made
1:25 Type of blocks
1:56 Insulation
3:06 Strength
3:47 Fire resistance
4:47 Sound insulation
5:19 Water resistance
6:08 Earthquake resistance
6:32 Ease of use
7:00 Environmentally friendly
Its main ingredients are
- Cement which is a mixture of silicates and oxides
- Lime which is calcium oxide and/ or calcium hydroxide
- Gypsum anhydrite which is anhydrous calcium sulfate CaSO4
- Finely ground sand or silicon dioxide SiO2 or fly ash
- Aluminum powder
- Water
Calcium oxide reacts with water in an exothermic reaction to form Calcium hydroxide and 65.2 kj/mol. Calcium hydroxide reacts with aluminum powder and water to generate hydrogen gas and cause the mixture to expand like bread dough. Finally, silicon reacts with calcium hydroxide to form tobermorite or hydrated calcium silicate C5S6H5.
AAC products are cured under heat and pressure in an autoclave. Steam is fed into the autoclave at a high pressure of 800kPa and a temperature of 180C or 350F. Steam curing allows the concrete block to retain its porous form and harden in just 8-12 hours, unlike normal air curing that can shrink materials and take longer.
AAC has millions of small air pores. In fact, it’s 80% air. It is 5 times lighter than traditional concrete. AAC doesn’t compress, decay or lose its shape over time. It has excellent dimensional stability despite its porous nature. Air is a poor conductor, so the closed cellular structure and high thermal mass of AAC makes it an excellent insulator.
Because it is so lightweight, its strength is 1/6 to 1/3 that of traditional concrete blocks and it has a lower thermal mass. It is still strong enough to be used on floors, roofs and walls. AAC is also quite brittle and requires special care during handling and transporting to avoid breakage.
AAC has an excellent fire rating, as expected from a cementitious product. It can withstand fire exposure up to 4 hours, without charring or losing its structural integrity. They do not emit toxic fumes even under intense heat.
To measure the spread of heat, I bought this FLIR one thermal imaging device on Amazon. I’ll link it in the description below. It plugs into your iphone or android and allows you to measure the temperature of surrounding surfaces. Even when the hottest part of the block was over 150 degrees Fahrenheit, the area around it was cool to touch.
Since aerated concrete has a porous structure and high surface mass, it is a great acoustic insulation and soundproofing material. It has an stc rating of 40 for 4 inch thickness and 45 for 8 inch thickness.
When aerated concrete comes in contact with water, the tiny pores are immediately filled and the surface is discolored. Since it is vapor open, it dries out pretty quickly and water doesn’t pass through the brick reducing the possibility of condensation inside the wall. It’s inorganic and not a food source which makes it termite, mildew and mold-resistant.
Due to mass production in controlled factory environments, all the blocks are of uniform quality and identical size. This speeds up assembly on job sites and reduces waste. Routing electrical and plumbing lines is relatively easy. It can also be easily cut, drilled or grooved with manual or power tools.
One of the drawbacks is the learning curve associated with using AAC. Masons who are used to traditional concrete have pushed back on switching to AAC. Also while you can screw and nail into aac blocks, the attachment is not as strong. Screws can strip out, nails can twist., so it is recommended to use plastic anchors. Hebel has designed special, large-headed, square shank cut nails with better holding power. Aerated concrete is considered to be environmentally-friendly even though the autoclaving process requires significant amounts of energy and water. It is recyclable, non-toxic, long-lasting and has lower-embodied carbon levels compared to traditional concrete.
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SOURCES:
• CSR Hebel - Autoclaved...
• What is Autoclaved Aer...
• How Hebel is made - ma...
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Disclaimer: This video was created for educational/informational purposes and qualifies as Fair Use. If you are the creator or own the footage featured in this video and have reservations please notify me via RU-vid comments or email and I will accommodate you
#lightweightconcrete #concrete #fireproof #aerated #autoclaved

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26 июн 2024

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Комментарии : 684

@BelindaCarr 2 года назад

Battled through allergies to make this long-overdue video. Apologies for sounding sick!

@Mike-qc8xd 2 года назад

I think you sounded fine; another great video great video

@salkjshaweoiuenvohvr 2 года назад

Get better soon! Additionally any comments on EPIC concrete? Concrete mixed with expanded polystyrene?

@user-ty2uz4gb7v 2 года назад

Belinda, take 10 grams a day of vitamin c spaced throughout the day. This eliminated my lifelong allergies. I'm in centex.

@watchman4j 2 года назад

Exellent work, health and peace to you!

@kytddjj 2 года назад

@lazarojnenad 2 года назад

Dear Belinda Carr, please note that this material has some drawbacks that I don't think that you have mantioned. We live in house build of Autoclaved Lightweight Concrete (Ytong manufacturer) for few years noew and in time I have learned pros and cons of this material. First: it is awesome. You have mantioned almost all good sides of it. Dont remember if you said that it is quicker to build with it compared with traditional masonry. Probably also more versatile because you can scrape or sand it to desirable shape. People build statues out of it, so it is no problem to send it to semi circle or something similar. As of cons, be aware that is corrosive to the iron. When you do reinfcement (for example, for windows and doors), rebar must be inbeded in concrete, not in its mortar. You can easily put nail or screw in block, and it will hold rather well, but if vibration is present, it will increase hole diameter which will losen screw or nail. Also, in time, screw or nail will rust. When metal is in direct contact with AAC, it should be galvanized. Regarding moisture - it can soke quite a bit, and it will need some time to dry up again. If it happen in winter, material will deteorite due freezing cycle. With increased moisture content material will have reduced insulated propertie. Manufacturers usualy don't advertise it this way, but if you are persistant, you can find moisture content to insulation ratio. Almost always, they show numbers only for fully dry product. All that said, I would use it again for my home. Our walls are 37,5 cm thick and we have also roof made of it. For now, we are very satisfied with our home climate through all seasons, and we have relative low heating and cooling bills. If you need any informations (from me as actual user) or pictures how we did it, I will be glad to share it with you. Please note that our home is located in Europe, but I don't think it would be any different regarding building processes in America. I'm eagerly anticipating new content from you.

@altergreenhorn 2 года назад

Can agree with most what you said except with the moisture in the walls and freezing cycle? Something ain't right here is your house completely finished ? Do you have a proper facade on the walls, drainage, wapor bariers..?

@lazarojnenad 2 года назад

@@altergreenhorn Not for my house, but for material itself. Finished house won't have those issues. Manufacturer stated that facade need to be applied. Just comparing with regular masonry, for example brick, where finish facade is nice, but not mandatory. Regarding moisture, I tried experiment: I left AAC block in water for one hour. It soaked water about 30% of it weight. I left it to dry for 48 hours, and after that it had still more than 10% more weight. In real life it won't be issue, but if flooding occurs, or you have broken pipe, it's nice to know limitations. Perhaps American "stick house" would sustain more damage in this situations. Also this materials do not need vapor barriers. You have only 3 layers. Block itself, interior plaster on inside and exterior plaster outside.

@niter43 2 года назад

@Valhalla It's suitable. AAC is widely used in/comes from Europe, northern parts are not exception. It'll be fine with few freeze cycles (YTONG states their products stand 100 cycles).

@lazarojnenad 2 года назад

@Valhalla It's OK. It's great material for winter. Good insulator compared with regular masonry. Just I don't think that you can use mortar in freezing temperatures to build your home. You should make it with water not with ice :) If rain or snow make blocks wet, they will dry out. Don't worry.

@jmi5969 2 года назад

Agreed. My country home is AAC on a slab foundation and it couldn't be a better choice. May I through in one not-so-small drawback though. Costs of interior finishes. Frame-and-drywall walls are smooth by design. AAC walls need tons (many tons) of mortar coat.

@robtoplis6502 2 года назад

I built my last house with these blocks and 50mm kingspan. Heating costs were non existent. You are a breath of fresh air. Someone who speaks common sense with research and intelligence. Keep up the good work. Rob in the UK

@andyortlieb3768 2 года назад

I wish that all of my teachers were you! I'm not even interested in building, but all your videos are fascinating. Thank you so much for these invaluable contributions.

@lyudmylasharma7768 2 года назад

if only she was honest about what moisture does to AAC blocks ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-GPxv_PrXdFs.html

@joegoldberg8770 2 года назад

We specified 10" AEC exterior construction on a new home we built in Albuquerque, NM (USA) in 2010. We also specified that interior walls bordering the AV room be made of AEC. (for sound insulation). We have had absolutely no problems with the materials and our heating and A/C costs are the lowest per SqFt in our high-end neighborhood. The sound insulation is absolutely outstanding as we designed the AV room with an isolated split-air system with all electrics and AV wiring being integrated into the concrete floor. The latex fortified exterior stucco looks new after 10 years of exposure to extreme heat and cold as well as extreme day/night mountain temperature variations. We were able to find a concrete contractor who had built using Hebel AEC in several other structures and the construction process (as to the AEC) went without problems other than transportation delays from Mexico).

@quintessenceSL 2 года назад

Cost difference compared to stick framing (materials, labor, etc.)? Certainly seems promising, but it always comes down to money (both upfront and longterm).

@leadlearner6391 2 года назад

hi Joe, do you have a video of the construction of your house? or could you create a corresponding video to Belinda's excellent video about Aircrete?

@joegoldberg8770 2 года назад

@@quintessenceSL We were told by our architect that the use of AEC would increase the cost of construction of the house by @4%. This 4% kicker would be reduced to 2% if we had gone with spray-on insulation (which we would have done) rather than batt insulation. IIRC the 10" AEC walls are rated for R50 in our climate.

@joegoldberg8770 2 года назад

@@leadlearner6391 Sorry, no. We were not in the State while the AEC block was being laid although I arrived on an inspection trip shortly thereafter. The AEC contractor had cut the blocks with a power saw and routed the electric traces and plumbing line runs with a carbide router. There was about 10mm of white fine dust on the foundation concrete (which it did not pit) which was later washed off with water. No aggro at all.

@quintessenceSL 2 года назад

@@joegoldberg8770 That's not bad. You could easily spend that (or more) getting equivalent soundproofing, insulation properties, etc. on a traditional build. To get all those benefits at only a modest price increase is a bargain.

@marchurlbert586 2 года назад

My grandparents used to own perlite mines in Arizona. I can remember my great aunt Fay experimenting by casting blocks made of cement mixed with perlite to make a form of "aircrete" that was light in weight and had insulating quali9ties. This was in the 1950's.

@CzKaa 2 года назад

In Europe we have many houses (50 years old) that was built from this kind of material. :)

@lyudmylasharma7768 2 года назад

and many look like this ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-GPxv_PrXdFs.html

@CzKaa 2 года назад

@@lyudmylasharma7768 Yes. If anybody do it that dumb. This material must be covered against water and other problems. Stupid builder => building in problems. :) This material is good. If You use it right. BTW: is it really in Europe? :P

@EbrahimHasan 2 года назад

I just had my home built using AAC blocks. Here in Bahrain we have a choice between that and sandwich blocks. I avoided making any load bearing walls whatsoever, just in case because it isn't as strong. Most contractors don't know how to use it, so they end up laying it with cement mortar rather than its special glue.

@helenhobbs5472 2 года назад

Does it have any special needs for air conditioning, heating, or clothes dryer?

@EbrahimHasan 2 года назад

@@helenhobbs5472 No, nothing like that. Just bear in mind it's fixed with a special a glue and the plaster later is made with a regular cement site mix, except there's a special additive. Without the additive, the plaster may not stick.

@NightCow5 2 года назад

Not trying to be hyperbolic, but you may be the greatest youtuber in existence. I greatly enjoy your videos and keep up the amazing work🥳

@BelindaCarr 2 года назад

Lol! Not sure how to respond to that. Thank you :)

@nc3826 2 года назад

Proving once again, when in doubt... That just complimenting a woman will always get a more positive response than an depth evaluation of what was said in a post.... Note to self :)

@FingerinUrDaughter 2 года назад

shed be better if she wore less clothing.

@Kaldusar 2 года назад

Nice video Belinda. I renovates mine 100 years old cottage with aircrete. It is light, really good isolator and biggest plus for me was simplicity of adjustment. For cutting you need just simple handsaw no need grinders like when you cutting bricks. Another positive is that they are so precisely made so you need just really thin layer of mortar. I think overall it is one of the best materials for building homes. Greetings from Slovakia.

@SinnisjInsulator 2 года назад

Great work on this product. It makes sense how it can be so effective yo mitigate sound waves due to the high number of small air holes.

@JezabelleAsa 2 года назад

I'm really glad that youtube suggested this channel. I didn't know that I wanted to learn about building materials, but here we are

@JohnnyWednesday 2 года назад

I really appreciate your insights and the topics you choose to focus on - your good self and the B1M are the finest construction channels on youtube :)

@user-ld1ce1ii4x 7 месяцев назад

a few comments. First of all, just because it looks porous doesn't mean it needs plaster or anything like that. Decades of experience, as well as the fact that it is used for facades, indicate the opposite. The second is about fasteners. A typical concrete dowel can withstand more than 100 kg. A piece of plywood with two diagonally driven nails can also withstand more than 100 kg. Belinda also didn’t say that the blocks come in different densities. Well, about the shortcomings. The main one is that the block arrives wet and dries already in the structure. This delays construction. Where I live, they usually build the box in the first summer, then it sits for the winter and the finishing is done the next year.

@Prompeius 2 года назад

This was extremely interesting. I don't believe we have anything similar to this here in Norway. Would you mind if i use some of your videos in my class in first year trade school construction, showing from YT ofc so you get the views and ad revenue. Really enjoy your views and takes on different products and learning of new products.

@BelindaCarr 2 года назад

Absolutely! Thanks for watching.

@Prompeius 2 года назад

@@BelindaCarr Thank you very much. I really hope my students are atleast 15% as interested in construction as i am and give you a follow after i introduce them to you.

@astranger448 2 года назад

You might have them in Norway, but under a local brand name. Or then maybe not, they are only midling insulators and quite ugly. I did the numbers for a construction here in Belgium but decided for a 25cm "stick frame" + mineral wool (rockwool)which insulates about 4x as well as cellular concrete/AAC

@Prompeius 2 года назад

@@Witcold That might be, but we have very different building codes here in Norway compared to Sweden. Not saying we can't use them, but most people here just chug along with the old faithful sadly.

@jaxstax2406 2 года назад

@@astranger448 I don't see how people think aircrete is ugly when it's being covered up anyway by drywall on the inside and stucco or some other facade in the exterior.

@andrew5407 Год назад

Belinda here you go again with another quality video... Thank you!

@epicuritus9761 2 года назад

This was a fascinating video. I've never heard of AAC. I thought your video was very informative. I love that you create videos like this, as it really expands my views on materials/construction methods.

@patrickkayser 2 года назад

Most of Europe has been building with this stuff for decades. Its so common Ytong has almost become a generic term like Xerox or Tasers in the US when people think about buildingmaterials.

@PeterGysegem 2 года назад

Behind my house in Thailand, a small development of 11 homes all are built with concrete pillars usually about 2-3 meters apart and the spaces filled with aerated concrete blocks. I think they are a foamed concrete product but I am not sure. In my house, we remodeled a bathroom and had to move an interior wall. We also used the same type of aerated concrete blocks to reduce the weight. The blocks for the development and my remodel were easily sawn with hand saws and drilled. I used heavy-duty anchors to mount a wall-mounted sink and cabinet.

@taith2 2 года назад

In Poland it's pretty much go to material for homes, real good stuff, however it's now considered inferior compared to latest technology Here rising in popularity are expanded clay blocks, exceptional material for home building Also... it's expanded clay, production line is heavily automated, material is local, abundant and cheap, can buy ready to go production line from Sweden

@meetankush 2 года назад

Expanded clay as in pellets or bricks? Thanks for your response.

@taith2 2 года назад

@@meetankush expanded Clay like pellets you use in garden, often glued together with small amount of concrete/other binder Put in to n shape where middle is pretty much hollow, allows for moisture to escape from building easily, removing risks of rot You would need to see whole systems/solutions to build with it, since expanded clay blocks won't work as intended if you just swap them with aircrete

@meetankush 2 года назад

@@taith2 I see. Thanks for your elaborate description and application. This sounds like something I can include in the building I’m trying to make in a heavy rainfall area. Will read and consult more about this. Thanks for your time. 🙏🏽 Also, much respect to the Polish people who are already using it extensively.

@no1slisteninganyway 2 года назад

Thank you. That was interesting. I didn't know that aircrete was made commercially. I'm used to seeing DIY recipes for making it.

@audigit 2 года назад

Different way of adding closed air-filled structures into the concrete. This product: AAC, uses a reaction of aluminum to lime, presumably, and blown air-crete uses a soapy mixture to express air-filled voids. I hope that helps

@xumatyt 2 года назад

@@audigit that's not the only difference. "Autoclaved" part of AAC matters a lot. As mentioned in the video, you get a different mineral (tobermorite) after autoclaving the mixture. As a result, compared to aircrete, you can get higher compressive strength at a given density, or lower density at a given compressive strength. And density basically defines the insulation properties of these materials.

@Bobbylegs37 2 года назад

Just what I was thinking! I would love to hear her opinion on Domegaia or honey do carpenter 😁

@CuongLe-ik8pu Год назад

We are AAC manufacturer in Vietnam and have exported to many countries, the creator of this video has deep knowledge about AAC and very mutual in sharing pros n cons of AAC, love to see AAC get more popular around the world.

@Ed-jg3ud 2 года назад

Seems like the biggest hurdles holding it back in North America: 1) lower holding power for fasteners. Solution : provide specific pullout resistance numbers with appropriate anchors 2) costlier- solution: provide specific example of what typical final build cost in the different scenarios (basement, above ground exterior walls, interior walls, etc) Ultimately it has to stand up on its own in terms of cost, installation, and utility if you want it to overcome wood and traditional masonry. Green building is great, but it won’t overtake traditional methods of it doesn’t win out on those 3 aspects.

@fredclarke801 Год назад

I love Aircrete! What a saving in cement. Thanks Belinda for your interesting videos.

@TheSnekkerShow 2 года назад

Very informative, thanks. I've only watched a few of your videos so far, but they've all been easy to follow from start to finish.

@BelindaCarr 2 года назад

Thanks!

@BenMitro 2 года назад

Great summary of these aerated cement products Belinda. Thanks.

@Hurault_Pierre 2 года назад

Dear Belinda, I am a trained cellular concrete building contractor and you mention that it is a good sound insulation, which is relative insertion coming from comparing to actual other insulation materials like mineral wool or fiberwool. However air is not a good sound insulation ! So in absolute cellular concrete isn't a good sound insulation, somehow it is one of the drawback of this wonderful material. My experience is if the project insulation target is around 8 to 10 (m².K/W) you cannot use only cellular concrete but you can add heat insulation with a good sound insulation like lime hemp concrete (Tradical) or wood wool (Steico). Thank you for the quality video !

@morninboy 2 года назад

I recall seeing something like this from eastern Europe. They were using a hand saw to cut it and laying the blocks with a thin set type material. One would think California would be jumping all over this one

@Bob_Adkins 2 года назад

Has California *ever* done anything that is in their best interest?

@altergreenhorn 2 года назад

It is common material in most of europe not just in eastern part in the past it was used for non structural walls ( my condo from 1972 have it) since 1990/95 it is also used as main building material. It is prfect for DIY because it is light and easy to stuck. It can be cut with a hand saw however the saw must have a proper teeths, wood saw doesnt last long

@nc3826 2 года назад

True, its decades old but not just in Europe. Shame we are so backward in the USA about adopting the use of advantageous construction materials.... smh...

@JS-df5vy 2 года назад

@@Bob_Adkins Yes. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Qc7HmhrgTuQ.html

@alexanderunguez9633 2 года назад

I think that it's because autoclaves are really, really, really expensive to build and maintain. The larger the autoclaves the thicker(and more expensive) the walls need to be in order to not rupture(en.wikipedia.org/wiki/Cylinder_stress). We would have to build a bunch of them for this material to be a sustainable building material, and California has some the the biggest population in the US.

@rdormer 2 года назад

Now *that* was a run-down. Very obviously researched in depth, well done!

@matsv201 2 года назад

Airrated concrete was really popular in Sweden in the 1960-tys. But we have had a lot of radon problems with it. That might only be because of the concrete using lot of granite based aggregate that is very high in Thorium. While the radioactivity of Thorium don´t really escape the wall, some of the rest product of the decay does. One of those is Radon. It takes decades for the radon emission to even out, and its virtually undetectable the first couple of months. Now that airrated concrete is not identical to the one in the video, but its fairly similar. While it also have a decent insulation properties, it really need to have some additional insulation as a break. (at least in climate that have sub zero temperature regularly)

@MilosMoravac 2 года назад

Does it still have those radioactivity problems, or do they use different ingredients now?

@matsv201 2 года назад

@@MilosMoravac Its hardly used in sweden, its probobly more about the reputation than anything else. But it was the sand that was radiactive. They use very fine sand, and it turned out it was very high in thorium. Thorium by it self is not really neither that radiactive, or really that much of a problem. Its the Xenon that is made of it that is dangerus.

@MilosMoravac 2 года назад

@@matsv201 I found only a few articles about this in English, so a Swedish comment is very useful. You have lots of experience with it. To me, it also seems like there is a lot of bad reputation and rumors around aerated concrete. My logic is, if it's really still radioactive, it would have been banned a long time ago. But then again, with all things going on in the world, you can't really trust institutions 100%. There is always money behind every word written in articles, researches, studies etc. So, the only way for me to know for sure if aerated concrete is radioactive is to buy a Geiger counter, haha! I hope it isn't, it has some really great properties.

@matsv201 2 года назад

@@MilosMoravac Well this happens a long time before my time. But my understanding of is that they use montesand sand because its very fine grain, and hence work well with ariated concrete. Its very high in Thorium, that is mildly radioactive, but more importantly produce radon that is also mildly radioactive, but because you breath it in, its somewhat dangerus.

@kennyleyland433 Год назад

This was brilliant Belinda. thank you

@MajesticBlueFalcon Год назад

This was very thorough. I immediately subscribed.

@joelw2413 2 года назад

Wow, that video was so informative, and I don't say that often. Thanks for the thorough look!

@sally.j2595 Год назад

My entire recommended page is concrete related. Who knew concrete would be so interesting.

@stevtyelaap7972 2 года назад

You are just amazing. Every single video.

@cho4d 2 года назад

i realise i've been very critical in my comments on your channel on other videos so just want to say i do love your channel and agree with 99% of the stuff you say just passionate about the subjects you cover ;)

@psedach 2 года назад

I think you're practically the only RU-vidr that gets samples of building materials sent to them (aside from the Texas construction people). You're on to something here. This channel is hitting a niche/scratching an itch.

@leadlearner6391 2 года назад

excellent video on using Aircrete Belinda; it just makes sense to use it in the construction industry.

@GoldenAgeNow 2 года назад

As always, you've done an excellent job on this video. Thanks so much for sharing!!

@aclearlight 2 года назад

Lovely presentation, important product!

@hangugeohaksaeng 2 года назад

@7:22 "Large headed square shank cut nails"! My new favorite set of words! Well done getting that tung twister out!

@rg20322 2 года назад

My new favorite channel that I just found today!! :)

@alanmcrae8594 2 года назад

Another excellent in-depth review of a construction product by Belinda Carr! And more proof that the internet has a lot of useful knowledge to be found, if one looks to the most informed sources. I think we might find some uses for aircrete on our future homestead, including a root cellar/storm/fire shelter. Thanks for all that you do Belinda. Hope you will be feeling better soon.

@BelindaCarr 2 года назад

Thanks a lot, Alan!!

@mysterytechknowledge3664 2 года назад

FYI, there are DIY methods to make "AirCrete" using a air compressor and other basic materials. YT is a good friend!

@karlrod4699 2 года назад

I love your videos! Many thanks for doing them.

@ralphcarbone299 2 года назад

I appreciate all your videos.. Especially debunking the hype!!!! Keep it up!!

@patrickmclaughlin6013 2 года назад

now this stuff makes sense Thank You for the info Belinda

@McRyach 2 года назад

🤩🤩🤩 I found my dream material!

@tonycucb 2 года назад

This video is SO informative. Thank you!

@ChingLan3000 2 года назад

As a home designer I would definitely use/recommend this product to my clients.

@bidisha_roy 2 года назад

Thank you so much for this video, explanation was so clear and easy to understand.

@cristomario9118 2 года назад

Excellent video - thank you. My building material of choice.

@SteeleWelch 2 года назад

We are currently designing and engineering homes in Paradise, CA and other parts of Northern CA and NV from AAC. A lot of the current issues we have been facing are outdated codes. One cannot classify AAC as CMU, unfortunately a lot of building departments are trying to lump them together. We have to do a lot of educating, but it's a great alternative to stick framing and wish it was more widely recognized in North America.

@sandralewis1689 4 месяца назад

I am rebuilding after the Paradise Camp Fire in Butte CreekCanyon. How can I contact you?

@bradthomas3188 2 года назад

Such a clever product and a great video - thank you!

@fatcaths 2 года назад

The algorithm directed me to your channel and i am ever grateful! you have awesome content, keep it up! :) *subscribed*

@malcolmmorel4952 Год назад

Absolutely fantastic video one of the best I've seen on this topic. And yes you should definitely make a video on the thermometer.

@garrywood5908 2 года назад

I love this material

@seanrhone5306 2 года назад

Love watching your videos, always learn something new.

@BelindaCarr 2 года назад

Thanks, Sean!

@andrewsavage6738 2 года назад

Thanks again Belinda

@petermccracken2247 Год назад

WOW, & MORE WOW !!! THANK YOU, I Have Learned A Great Deal On This Product From You. Well Delivered Explanation. Great Video.

@bullithedjames937 2 года назад

Precast aircrere, sounds awesome. Their method of getting the bubbles is intriguing. All homemade methods use soap primarily

@SS-hz4jo Год назад

Great video. Thank you.

@meinthewild 2 года назад

I’m so glad that I stumbled across your channel yesterday. I’m planning to sell my farm next summer, purchase a smaller piece of land and build a smaller house. I want to avoid having a mortgage and I want to use more environmentally friendly, cost effective building materials. Initially, I was exploring hemp-Crete and rammed earth, but I’m now also interested in this light weight concrete. You are very good at explaining everything about building materials and making it interesting. Thanks for the information!!

@RedandAprilOff-Grid 2 года назад

👍

@bartphlegar8212 2 года назад

Always heard this described as "aircrete". Glad to have a proper name for it now!... 😃 ...I had a friend in Mexico who made customized blocks out of this material. He mentioned to me that standard rebar was not necesssarily needed to reinforce these because of the light weight (don't know how that would be received in American building codes). He said that ceramic pins could be utilized for equal or better effect, without the corrosion effects. For the kind of projects I do, I love this stuff!...

@soyo 2 года назад

Great video and channel!

@bartbart1011 2 года назад

Another great informative video Belinda , thank you !

@BelindaCarr 2 года назад

Thank you!

@martinm3474 2 года назад

I have worked in construction: concrete, stick, pitched and flat roof. I find this very interesting. Living in northern Iowa, freeze /thaw is a consideration, so surface covering is important. This could make inroads for twenty year lifespan building planning.

@jfjoubertquebec 2 года назад

Watched a video, was not subscribed, back looking for that video ignoring those silly Yt recommendations. Every homeowner or person thinking of building-buying a home should watch this channel. Subscribed now.

@astranger448 2 года назад

Also good to know, AAC has a denser variant for use in foundation work, they might go by the name of AAC course block. They have more of the look and feel of the regular concrete blocks the industry is used to, for similar weight and strength (they are solid, not hollow like real concrete ones)

@MikeKeesler 2 года назад

If you use latex paint mixed with cement for a surface coating, it does exceptionally well for a monolithic dome. A soap foam based aircrete is a very good way to go. Very DIY friendly. Thanks for your video. I hope to be turning out some on this subject soon.

@garybyrne2605 2 года назад

Great info, thank you.

@tinytonymaloney7832 2 года назад

Love that camera, yes a video on that would be good 😀

@frenkenberg Год назад

Best review so far that I watched. Very professional. You are not wasting time like others. Aircrete is not popular because it CAN NOT support 2nd Floor! But this is thoughless because, who needs 2nd floor if you build outside the city or on cheaper land? Saving surface of land is only important in big cities. This will take off once someone like me, designs ground floor stand-alone house. As for outside, I would use Epoxy or Marine Paint that is used on ships. That would be my waterproofing for walls. As for floors, I would waterproof with just laying down tarps. The corners would be reinforced with 4x4 and the top horizontal bars would be from 2x4". This way it could support the roof. Roof would have frames from 2x4 and plywood. Keep in mind that Roof doesn't have to carry any weight. They build roofs that are unnecessarily strong.

@justinxin4794 2 года назад

Thank you for this info.

@MrFester63 2 года назад

I've said it before, You're awesome! Thanks for another great video!!

@davidmarr5245 2 года назад

I've been a fan of aerated concrete for many years, I too would like to see it more frequently in the US. Back in the 90's a couple of buildings were built from this material near me in a very cold climate.

@brunodesrosiers266 2 года назад

I do wonder why this product was first developed in Sweden since it is so useless in a cold climate. It has a thermal resistance superior to denser concrete, understandably, but insulation is still (badly) required, and on the exterior side. This is when you realize that you need proper anchoring capabilities and that in this regard autoclave concrete is garbage, pure and simple.

@RedandAprilOff-Grid 2 года назад

Great Video! We are planning to build our house out of aircrete. It will be a learning experience for sure.

@natotomato4509 2 года назад

Thank you for this video, lots of valuable data. I make aircrete bricks off grid, on site by myself just to show that anything is possible.

@konichiwatanabi 2 года назад

Great detail thank you

@sathapalani 2 года назад

Hi Belinda, have been following you for awhile now. Love the content!! In light of all the discussion about housing affordability in the US, might I suggest a series of videos on construction costs/ options / ideas that can help address the problem

@jeffreycraton9686 2 года назад

Thank you for doing this video!

@jaydenchadwick2311 Год назад

This video is so good

@oferarubas 2 года назад

Honestly sounds great

@galas455 2 года назад

I really enjoy your program, you seem to have a good grasp of the sciences. Hopefully, I'm not insulting you . . .

@DonTruman Год назад

Appreciate the video. Appreciate weighing the pros and cons.

@berthaduniverse 2 года назад

Belinda, very interesting topic. It would be nice to see a more across-the-trades look at installation, finishing, and remodeling. Thanks for the channel.

@craigkeller 2 года назад

Excellent presentation. I hope AC products receive more support from our building communities.

@mosialive Год назад

New Subscriber here. Thanks for your great Content Belinda.

@KevinLyda 2 года назад

Here in Ireland they use similar blocks for the bottom course of blocks on both sides of a cavity wall. It's to stop heat transfer from the ground into the slab/wall. I just had a garage built that way and it has been amazing at retaining heat. Though the 150mm thick cavity insulation probably helps too...

@etmax1 2 года назад

Well that was interesting, thank you very much

@louisa4295 2 года назад

How about doing a video on ICF (Insulated Concrete Forms) construction, followed by SIP (Structural Insulated Panels) as alternatives to traditional stick-built homes and AIRCRETE. Both ICF and SIP have been around for a while (25+ years?). Love the videos. They are very informative. Ignore the "haters".

@foreyfriend145 2 года назад

As always, 🅰️➕ lecture, go Belinda go!.

@BelindaCarr 2 года назад

Thank you!!

@morganahoff2242 2 года назад

I became interested in lightweight concrete, and to try it out made a pair of speaker stands. I found instructions online for simply substituting the gravel aggregate with vermiculite or pearlite. This technique is apparently used for making things like garden sculptures, which don't need structural properties, and need to be moved from time to time, so it's advantageous if they're not extremely heavy. Same with my speaker stands: I don't want them to be so heavy that they damage the floor if they fall over. A worthwhile experiment, but they are a bit crumbly (probably because the ratios in the concrete mix could be more optimal). I was glad to see in the video that a commercial product is available. The most promising applications I saw in the video were the interlocking construction blocks (can mould them in any shape you like) and making sound-barrier walls between highways and housing. These walls only need to bear their own weight, so it seems AC has the structural qualities required for this application.

@dailyrider2975 7 месяцев назад

My thought has been to use AAC on "Tower" home. Circle of same area as a square uses 17% less material for outer wall. Withstand winds much better. Mesh around outside with stucco turns it all into one solid unit. 40 foot diameter home will give you about 1200 square feet or 2400 if you make it 2 story. Plus roof. Run circular track and you can have rotatable solar panels on roof that track the sun. All lines could be run down a central shaft that contains all the utilities. inner area for kitchen, baths being next to central shaft.

@miguelpereira4639 2 года назад

Love your Videos.A topic that has not been discussed here is the thermal characteristics of the windows/windows frames.

@larrydorsz4647 2 года назад

Thanks for the info.I would entertain building a house out of AC. This looks like a wonder building material.

@marlonvite4152 2 года назад

Great vjdeo, to the point, great chemical detail, because it is also clearly spoken I will subscribe to learn more from you. Thanks for making it free to me.

@johnnelligan4091 2 года назад

Do both videos Please ! Thank You !

@ajfvajf5 2 года назад

I've used such a product, brand name "Ytong Stein", when I lived in Germany back in the 90s. I used it instead of traditional framing to skirt the quarter-round bathtub, then covered it with cobalt blue Penny tiles. I also used it in the kitchen to create "open" cabinets under the counter. These blocks were used to create partitions that also supported the L-shaped countertop which was made of 3cm thick laminated wood, with cutouts for range top and double-sink. I covered the partition with square tiles, then cut laminated 2cm shelves to fit between the walls. We used a curtain to hide the plumbing under the sink and bio-waste bucket, otherwise the shelves were all open (no cabinet doors). For the oven, it was only about 2 ft high, so I made a drawer on wheels to fit under the oven. I didn't use tiles to cover the blocks facing the oven and left it as is with about 1 cm air gap on the sides. Very easy to use and as you mentioned, I used plastic anchors for the shelf brackets, so the shelves could easily be lifted out for cleaning. If I ever did such a remodel project again, I wouldn't hesitate and would find ways to use it on other projects wherever I could. The possibilities are endless where compression strength, noise abatement, fire/heat resistance etc are adequate for the project. Another advantage is the relative "thinness" is a plus. A finished wall would be thinner than traditional 2x4 framing, as the thickness would only be 5cm (2") - - even if sheet rock was glued on both sides. Glad to know it's showing up here in America finally.

@richardschlaud9895 2 года назад

Well done.

@thewatchertube 2 года назад

In Israel we use it for more then 50 years. I remember playing with it as a kid at Construction sites bcz it was so light. Called Etung Blocks.

@user-fv1uf9bf4r 2 года назад

Great, youtube has never seen such excellent video quality in the entire space. I built myself a house from this material, and as an energy engineer I think that we need to talk more about it.