Making High-Strength Lightweight Concrete

[@Nemz0r]

Thanks for all the info you pack in to these videos! One thing I hasten to add (and I know no one likes overbearing health and safety!) is that the smallest and most dangerous particles are invisible and stay suspended in air for quite some time, so whilst wearing a mask when mixing is great, there's a great deal of exposure afterwards in an enclosed space. I appreciate that you're filming a video and need to talk to camera so might not usually take the mask off quite so quickly and if you know all this then apologies! I'm quite a stickler about these things since my dad developed COPD working in the cement industry before all this was known. Keep up the good work!

[@johnhorner4139]

Thanks for the extra info about COPD. It's a little late for thousands of merchant seaman who worked "supply boats" in the Gulf of Mexico. Part of our job was cleaning bulk/dry cement tanks. Big enough that there were permanent steel ladders to reach the bottom. If we were lucky, we had paper masks. I drew the line on potential suicide when one day in Venice LA they loaded us with Barite or cement (same tanks) and suggested we read the paper work. There was an additive called "Hexavelant Chromium", the warning stated "may cause pulmonary fibrosis, low single dose toxicity expected". Trust me, with paper masks low single dose was a joke. Hexavelant Chromium destroyed Hinkley CA and the lives of all that lived there. No telling how many loads of poisonous contaminants made it's way to the drilling rigs and platforms and cut short the lives of thousands. It would all seem like natural causes. Old age, cigarettes etc.

[@andydobbieart]

Love your methodical approach to these videos. Very educational!

[@creatingconcrete]

I am happy you are enjoying the content!

[@TsetsiStoyanova]

You work very cleanly

[@brianmarshall7214]

Thanks for the video, as an 'old' builder from Australia, rather use a polymer based product than PVA, as PVA recontitutes when it gets wet whereas a polymer product does not. Make sure to use a release agent on your formwork.

[@creatingconcrete]

I do not disagree that acrylic and latex admixtures are superior for any wet application. Noteworthy is that some modified PVA products will emulsify one time only, not again, which makes them resistant to re-emulsifying with the moisture the concrete is exposed to in the future. Cheers.

[@captainamazing1356]

Can you name some products that do this?

[@J-RallySite]

Again love these videos. Can you please tell us the size of the boxes and the amount of each ingredient by volume?? Gratitude!!

[@thisdayage7997]

Great video! 😊

[@creatingconcrete]

Glad you liked it!!

[@crankman88]

Has the results for this test come out yet?thank you so much!🌻

[@JohnDaniels]

Great videos! 👍🏻. I am thinking about building a house and was wanting to make it out of concrete. I could make the walls out of regular concrete and then after that put insulation on the inside. The other option I was thinking about is using the light concrete that's already insulated, but I wanted to ask you, do you think that would be possible to use light concrete for the walls or is it just not sturdy enough?

[@nixnocent88]

What about using modified thinset mortar (tile adhesive) with fibers for a base for lightweight mix?

[@pdlister]

Can you use this to make a pizza oven? Does the perlite/vermiculite make it susceptible to heat?

[@Lonchpad1]

What about using the water glass to strengthen, Especially if you’re going to use it in a core for an outdoor woodfired kitchen, for instance ?

[@deannacorbett9940]

Thank you so much for your videos - they're very helpful to me as I've just recently started working with cement/concrete. Can I just confirm please that when you're talking about ratios your parts are volumetric? I have some weight based recipes, but I'm assuming since you're working with such different densities you're talking parts by volume rather than weight.

[@tellsthetruth894]

Thank you for your videos. I wonder if you would help me answer an important question. Here it is: my concrete driveway, 35 yrs old, within 3 feet of my 2 car garage entrance has worn off to the point of creating a water puddle in that area (3x20 ft) after a nice rain. Question is: what concrete mix I might lay over it to build up the depression permanently and get rid of the puddle. No expert here, but can follow directions. Thank you

[@creatingconcrete]

This is an overlay / patch and nothing will work 100%. I would use an overlay concrete patch. That is what I would buy, but f you want to make it yourself it would be a 3-1 sand to cement mortar, with 10% water replaced with liquid acrylic / latex. I would also use a latex bonding slurry and paint it on the old concrete right before you roll the patch over. If you use overlay mix you dont need the slurry.

[@johnnyllooddte3415]

im looking for the lightest concrete possible.. how much does this weigh per cubic foot

[@mavifigueres4397]

what about adding basalt fibers?

[@ssanchez227]

Hi. Thank you for all the great videos. I am contemplating creating some large patio pavers (2' x 2'). I am thinking I might need to move it around and experiment with different layouts. Do you thing this mix would hold up as patio pavers?

[@creatingconcrete]

No I do not think it will hold up. You need sand in the mix also for strength because with only lightweight aggregates the finished product is very weak

[@ssanchez227]

@@creatingconcrete Thanks!

[@fionalyn7680]

Hello, Can Sika Latex be used instead of bond weld?

[@creatingconcrete]

That would be comparable to the acrylic fortifier product, not the PVA weld bond. I would think sika latex and PVA weldbond not compatable.

[@CyanCat343]

IS ANYONE ELSE WATCHING JUST COS OF THE DUDE

[@creatingconcrete]

Thanks Mom!😄

[@brendapetropoulos3259]

🤣🤣🤣🤣😳

[@mosaicwhisperer]

Super thanks❤

[@tommurphy2057]

I would like to know how hard it is to work with as far as cutting channels. And how does it stand up to heat I’m looking to make walls for my kiln and run it at 2500°F😊

[@MarkMichalowski]

Cement/concrete isn't good for high temp applications, Tom, because tiny pockets of water can exist in it for a long time - and the heat could make it shatter explosiveky. You'd be better going with plaster.

[@oliverosbourne6776]

Use sbr not pva sbr is latex based and does not break down with water pva breaks down with water

[@jameskid81]

what happened in the stregnth test?

[@creatingconcrete]

The strength test is an ongoing comparison. So far I have only tested very basic mixes. The next series will include more advanced mix design, more admixtures, aircrete, lightweight reinforcing etc. So there is no official conclusion, at least yet anyway.

[@CCoburn3]

Here are a couple of videos on easy (and cheap) graphene as an additive for concrete. It is supposed to increase concrete strength by about 60% or more. kzbin.info/www/bejne/i4WugGatpLxpj7c and kzbin.info/www/bejne/lYXFoX-Mp7mWb5Y

[@tcrrinn6726]

Oh I'm sorry I thought you were going to straight tested you were just leading me thanks a lot

[@creatingconcrete]

I have probably 20 videos on making, testing, breaking and using lightweight concrete. Not sure what you are looking for but I show the whole process, the mix, the results...

[@shareyourchristmas]

@@creatingconcrete Thanks for sharing the experiment, can you please give me the link to the follow up on this video if there is one. I am interested to see if adding the glue and fiberglass improved the performance of the panel.

[@creatingconcrete]

@@shareyourchristmas here is the follow up video where I break this one. If you want to see it compared in strength to other mix designs check the video description where I have links to each mix design I have made and tested. kzbin.info/www/bejne/Y2rRdKCgl8dqn5o&ab_channel=CreatingConcrete

[@shareyourchristmas]

@@creatingconcrete Thank you, I just watched it. That was helpful. I have been thinking of doing a DIY external wall siding using light concrete panels. It is great to see someone who has a passion for working and experimenting with different mixes. It would be great to one day find out what you think could make a good lightweight concrete wall panel. 🙏

[@salvadorpalma8173]

You sound funny when you say "fucked up".