Concrete Dumbbells | DIY

Hey everyone! For the first time, we are uploading a video with no GlobMarble products, just a cool project for first time concrete users. Hopefully this will introduce you to concrete, and give some skills to improve your home for pennies on the dollar!! Check out some of our other videos, and check out our website!! GlobMarble.com
Music- Stage 1 Level 24 by Monplaisir (We do not own any rights to this music)

[@JustAskBar]

Thanks, you inspired me to make my own dumbbells. Pro Tip: Instead of cutting the bucket when you demold. Add some baby oil in the buckets before pouring the concrete in. Then lightly tap around the bucket when it comes time to demold, it will slide off so you can use it again. This will greatly reduce your cost basis.

[@GlobMarble]

Hey!! The reason I didn't use a release agent on the buckets was that I didn't want the dumbbells to be smooth. This is why I mixed the concrete in the original container. Closer to the end you can see a few closeups, and the sides look scratched up and more rugged which I think is a much cooler look than a smooth cast of a brand new bucket. Those same scratches and ridges make it extremely difficult if not impossible to demold without destroying the container.

[@haleemapm4385]

Motor oil works also

[@Worlds.Strongest.Mauro10]

WD40 too

[@vuze6075]

I will have to try this then, cause apparently everyone is buying these disposable buckets out.

[@jimmymac601]

I recommend Vaseline because it won't run like baby oil.

[@OomLourens]

ProTip. Spray your containers with silicone spray or cooking spray and you can re-use them multiple times I recently did some kettlebells, great video 🙌🏼

[@minmyatthu7062]

Thanks for ProTip bro. You save me some bucket.

[@wesleyhempoli5548]

An old bro of mine works for a concrete and masonry company and he made his own dumbbells out of concrete, too, but they were all odd weights when he cast them. Each set weighs the same i.e. a 6.1 lbs set, a 13.7 lbs set, a 19.4 lbs set, etc, but, instead of marking the weird weights by their actual weights, he just labeled them #1, #2, #3, #4, etc, etc, in order of lightest to heaviest.

[@andreysilva8418]

as you cant tell the bigger ones are heavier...

[@SuperCanuck777]

@@andreysilva8418 LoL

[@TheEmptyAir]

that's fucking hilarious

[@DanielQRT]

tbh that's just more efficient, the exact weight doesn't really matter (and if it does you can always go check your strength in a gym with proper dumbbells)

[@coeurderockeur871]

We used to do that a lot in Africa - Thanks for the souvenir.

[@GlobMarble]

Thanks! Cheers!!

[@socialanimal1837]

Village body builders

[@TEKASHI-de1qt]

ZULUL WARRIAS PREPARING FOR ACTION

[@luciuschrist6929]

In Africa, you don't sound African, where in Africa bra.im from South Africa, we never say we are from Africa, only outsiders say that. 😈😆

[@Matt-py6nl]

Look up Kulbila_Fitness on instagram.

[@adamrenkema4253]

If you dont cut the bucket all the way off, just cut the excess, you essentually have a rubber coated dumbell. You can also get some rubber paint for the outside if you dont like the bucket look. Also, I would reccoment hockey tape over electrical tape. E tape will slide over time and youll get a greasy residue. Hockey tape is meant to be handled often and feels better on the hands.

[@camilacirilo3746]

This is great! Thank you. I'm setting up my own garage gym but ain't paying $50 for a dumbell.

[@GlobMarble]

Happy to help!

[@kens8868]

Are you taking orders? I want to open a gym. I can call it Flintstones. Seriously though, a great idea.

[@angelmendoza1876]

That is a great a idea not gonna lie, very clever

[@randy3444]

THATS A MILLION DOLLAR IDEA WHY WOULD YOU POST IT IN A KZbin COMMENT😂😂

[@elslick]

A tally not a bad idea. Hahaha you could go themed and get real creative with that.

[@vanessasaetern05]

Seriously, can we just order some for cheap from you

[@venulardonkey4123]

I was in the process of stealing ur business plan and putting into work since it was going to be very cheap i decided to intelligent plan for all types of licenses tho u will not be able to use them for liability issues 🙃

[@qiminaqiemi97]

Another pro tip you could add is to buy rubber coating spray paint to protect the concrete and make them last a bit longer :)

[@narbehabramian4738]

you did a perfect job, I used schedule 80 PVC because its stronger and I used screws but doesn't really matter. I bought liquid plastic to rubberize the concrete but honestly duct tape works great and if you accidentally drop them it'll break or chip but its covered with tape. Liquid plastic will get expensive. My first set looks like shit but I'm improving. Im gonna try to make fixed small barbells with rotors.

[@GlobMarble]

Thanks! a great way to make them indestructible without making them look ugly is coating the concrete with LINE-X. Just remember to wait for all the moisture to leave the concrete before spraying (3-4 days)

[@andreaiooqk4967]

I know your deeds, that you are neither cold nor hot. I wish you were either one or the other! So, because you are lukewarm-neither hot nor cold-I am about to spit you out of my mouth. You say, ‘I am rich; I have acquired wealth and do not need a thing.’ But you do not realize that you are wretched, pitiful, poor, blind and naked. I counsel you to buy from me gold refined in the fire, so you can become rich; and white clothes to wear, so you can cover your shameful nakedness; and salve to put on your eyes, so you can see. (Revelation 3:15-18) you cannot live for this world and not try to stop sinning (being cold) and only believing in God(hot) without turning from sin or sinning and saying God will forgive you after or not read the Bible, pray, worship/obeying God. Which is being a lukewarm. If we are neither cold or hot, God will spit us out his mouth. Do you not know that the wicked will not inherit the kingdom of God? Do not be deceived: Neither the sexually immoral nor idolaters nor adulterers nor male prostitutes nor homosexual offenders 10nor thieves nor the greedy nor drunkards nor slanderers nor swindlers will inherit the kingdom of God. 1 Corinthians 6:9-10 For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life. John 3:16 Proverbs 11:2 “When pride comes, then comes disgrace, but with humility comes wisdom. ” Proverbs 16:5 “The LORD detests all the proud of heart. Be sure of this: They will not go unpunished. Proverbs 16:18 “Pride goes before destruction, and a haughty spirit before before a fall. Genesis 1:26-27 - “Then God said, “Let us make man in our image, after our likeness. And let them have dominion over the fish of the sea and over the birds of the heavens and over the livestock and over all the earth and over every creeping thing that creeps on the earth. Jesus is coming back soon!! Repent and believe!! Jesus loves you and wants a relationship with you 🫶🏽 Plis read revelation 3:15-18 on google if you don’t have a Bible. (Exodus 20:7) You shall not invoke the name of the LORD, your God, in vain. Please don’t use Gods name in vain, it’s dangerous Has a nation ever changed its gods? (Yet they are not gods at all.) But my people have exchanged their glorious God for worthless idols. Jeremiah 2:11) having idols of any kind isn’t good 🙅‍♀️ Shall a man make gods unto himself, and they are no gods? Therefore, behold, I will this once cause them to know, I will cause them to know mine hand and my might; and they shall know that my name is The LORD. (Jeremiah 16:20) HAVING IDOLS IS A SIN JEREMIAH 16:20 , JEREMIAH 2:11 Revelation 3:15-18 explains that we can’t be cold and hot at the same time which is being a lukewarm. In other words, if we are hot, which is really repenting and turning from sin) if we are cold we just completely don’t really follow God. If we mix those together it makes a lukewarm which they will be spat out Gods mouth and won’t inherit the kingdom of heaven. For God so loved the world that he gave his one and only Son,that whoever believes in him shall not perish but have eternal life.John 3:16. Greater love has no one than this: to lay down one’s life for one’s friends. John 15:13 Romans 8:38-39 .. John 3:16 .. Revelation 3:15-18 Corinthians 6:9.. John 15:13 Psalms 23:4 Psalms 23:4 || Yea, though I walk through The Valley of the shadow of death, I will fear no evil: for thou art with me; rod and thy staff they comfort me. Deuteronomy 31:8. The Lord himself goes before you and will be with you; he will never leave you nor forsake you. Do not be afraid; do not be discouraged. Be anxious for nothing, but in everything by prayer and supplication, with thanksgiving, let your requests be made known to God; and the peace of God, which surpasses all understanding, will guard your hearts and minds through Christ Jesus. Philippians 4:6-7 JESUS IS COMING BACK SOON!!REPENT BEFORE ITS TOO LATE!!🫶🏽🫶🏽 ✝️❣️…😊😊

[@JeffAboularage]

Thank you for making this video, mate. Concrete and Masonry and anything related has fascinated me for the longest time.

[@markbrown1609]

great vid...twenty minutes ago, i thought about DIY dumbells from concrete and your vid popped up.

[@LegoBoyDarwin]

Very cool. I was thinking of spraying the concrete (once it cures) with plastidip.I also have some grip tape I got off amazon (same type used on handle bars and tennis rackets).

[@Agamimg360]

So Boss thanks for the video Its great. As I was watching it at the point that you cut the buckets of the concrete I was anticipating what you said later on about not throwing them around as they will break up. As a person who works with up cycled HDPE plastic a lot I was thinking that you might try to de mold them with out cutting the buckets, then after letting them cure and get all the moisture out you could Remove the upper rim of the bucket and put the buckets back on them and then using a hair drier you can soften the plastic and form it over and around the concrete to enclose them and extend their shelf life a bit. Thanks again for the video, stay safe

[@thijs199]

hey if you somehow can make a rubbery seal around it, then that makes them much less susceptible to cracking!

[@johnnyshanksalot8358]

I just used plastic bags and then an extremely large amount of duct tape to pretty good effect. My weights were made of 'Portland cement' (plaster of Paris plus sand) which is weaker than normal cement but I don't baby them and they haven't broken yet after a year or so, the thick duct tape layer seems to work pretty well for protecting them. Ugly but functional :)

[@videos4mydad]

Instead of nails you can also use a bolt and use two bolt-nuts to position the PVC pipe exactly where you want it.

[@GlobMarble]

That was the original plan but these nails ended up being cheaper :)

[@bodiddley7404]

Worked out well! I’m gonna have to check out your other concrete work. I’m thinking of buying a gallon of flex seal and dipping the weights in it. @$30 a gallon I’m still waaaaaay ahead of buying a set of 25’s Plus it may keep it from chipping etc We’ll see.

[@GlobMarble]

That's a great idea, I never knew flex seal was so cheap

[@quadradus]

Where do you get flex seal at that price?

[@bodiddley7404]

I erred That was 32oz can for $30 Oh well.

[@quadradus]

@@bodiddley7404 oh man .... I was so looking forward to it.

[@readysetnogo]

@@bodiddley7404 look for liquid plasti-dip instead of flex seal. plasti-dip is usually sold in spray cans, but the liquid form might work better for this. typically people use the liquid kind to dip tool handles to add a rubber like grip to them, but I dont see why it wouldnt work on these weights if you completely encased the concrete in it.

[@laserbeam002]

I am currently doing P90X and hope to start Body Beast maybe in September. I'll be making my own dumbells because I don't relish the thought of spending all that money. Some of the high end dumbells can run hundreds of dollars.

[@GlobMarble]

Good luck!

[@hibiscus_samoa]

This is awesome!! 👏🏾 im gonna try cos here in Samoa it's so expensive but this is so easy and I can get the stuff to make it now im excited!! Thanks for sharing 🙏🏽

[@iromnecolson1299]

I already have my own gym with concrete plates.,dumbells,wooden benchpress... your vid also great🖤👍🏻

[@sallyb3rry]

They're so beautiful!

[@ivbqwljrf234]

This would benefit tremendously with a bulleted shopping list, this is great though in general

[@ivbqwljrf234]

Nevermind, I am a fool in a mans shoes, it was there the entire time

[@GP-zr2zv]

How do you get accurate weight measurements? What kind of scale do you use

[@tonydiethelm8980]

Dude, its a dumbbell, not a laboratory standard. Close enough is good enough. :)

[@akhi5749]

@@tonydiethelm8980 yeah you’re muscles won’t notice the 0.5lbs difference lol

[@bradleymaguire7179]

very good Idea mate nice work I think I would have. Little things I would have done differently one keep it in the plastic bucket over time dropping the weights will chip away the concrete, two I would have filled in the pipe with concrete as well for a little extra strength in the pipe, three if you put your pipe in the dry concrete mix and to measure at the start you wound not need to waste it.

[@GlobMarble]

Thanks! Keeping them in the bucket would definitely add strength, but they wouldn't look nearly as cool. Also, concrete in the tube would not add any strength. concrete is strong under compression like under a hydraulic press, but extremely weak when it comes to bending, which is why people use rebar to keep it from cracking. Also the concrete sits much lower in the bucket when its mixed with water then when it is dry. The best way to not waste any concrete is to work quickly. Have the nails precut before adding water to your mix. That's what I did with the rest of the buckets.

[@damoncheetham6237]

Thanks man I’m gonna make some weights are 4-6$ a lbs where I am rn

[@GlobMarble]

No problem! :)

[@ZZ-ev2ed]

Great tutorial! Very helpful - I think I might try this just for fun with a couple 30 pounders. THANKS!

[@GlobMarble]

Good luck!

[@leticia0baby0428]

Hello your dumbells look perfect! I'm trying this too, thanks for the explanation. Just a question though, if I want 30lb dumbells I just have to measure 15 lbs of dry concrete on each side? The weight of the concrete doesn't change with the matter state?

[@GlobMarble]

Thanks! Technically it will be a little bit heavier but its unnoticeable. Maybe by a few grams

[@leticia0baby0428]

@@GlobMarble thank you for the answer!

[@leticia0baby0428]

@mr system yes I did

[@angelayala7922]

asys t How did it go?

[@madhu5465]

@@angelayala7922 he was pressing it then one block land on his head

[@archangel9114]

You can save a lot of molds if you spray the inside with marine grease before pouring the concrete.

[@GlobMarble]

You can get it out without oil. Plastic wont stick to concrete. I had to break it because of the ridges and scratches from mixing inside the bucket.

[@HardporeCorn66]

Thank you for the guide daniel radcliffe

[@goofyrambo2173]

Thanks little brother, i made 4 dumbells 2X10 & 5X2 in your pattern. It really worked well, but you know what, you can save and REUSE that bucket if you use duct tape outside and inside to stick the edges. Ypu can save $2.35 on each use.

[@jakegofner]

Great method. To make heavier ones I use a metal pipe.

[@wackoporras2972]

Wow that was nice... Hope i can make a perfect one like this

[@GlobMarble]

Thanks :)

[@bradfab_fx]

You could just mix it on the floor and then scoop it back in the container

[@michaelwongofficial3378]

If I want the weight on one side of the cement block to be 20 pound, does that mean I only mix 20 pound of cement with water? thanks

[@yashkelaskar8943]

Take approximately 19 pounds of cement and 1 litre of water

[@mckenziekeith7434]

@@yashkelaskar8943 1 liter of water weighs 2.2 lbs.

[@viozzy]

@@mckenziekeith7434 thats why he said approximately

[@chongtak]

@@yashkelaskar8943 I thought the water would evaporate and eventually 19 pound of cement + 1 litre of water would weight 19 pounds.

[@davidmendiola1]

Make sure to mix only half since you'll be curing one side at a time.

[@Cdswjp]

how about filling the center of the pvc pipe w/ concrete first before creating the outside parts ? will also decrease the overall size of the dumbbell a small bit & make the center harder to crack

[@amichaelidespro]

You can paint the weights and the plastic handle if you want, will look way cooler

[@Aerish369]

My cousin and I tried to make a barbell and dumbbell out of cement and pipe like this. But It was a huge fail. We didn't realize we had less cement in proportion to soil and pebbles. We didn't have dumbbell or barbell. But it was a fun day to remember.

[@4991dalex]

Just use EMT Conduit instead of PVC it's a lot safer and more sturdy!

[@GlobMarble]

Maybe so! Still, I haven't had any problems with mine yet :)

[@garnetsteen]

It would be interesting if you left the bucket on somehow, trimmed it and left them “plastic encased”.

[@afrodude4782]

@@garnetsteen that would be a great idea

[@taden2007]

i like the idea but can u get the nail to fit in as tightly? or would that be a none issue with it being in concrete?

[@edub0524]

Might as well go rigid conduit so you never have to worry

[@TeBiDoWil]

Add latex concrete additive for more durability/shock absorption. Great vid 👍

[@JK-iy9xc]

Love this. I'm going to be a pain in the ass and ask you to measure the diameter and height of one end of the 35#. Just wanted to be able to put size into prospective. It would be much appreciated!

[@joebloggs430]

Hi great vid, thanks ! Just a quick question : How much did the finished unit weigh when it dried and how much water did you add in total for each unit ? For reference the min. water to cement ratio is 0.23:1 just for hydration ( the chemical reaction of hardening ), and 0.35:1 for a more workable mix. This doesn't include the aggregates like sand and stones. You can add up to 0.5 but after that the concrete strength will be affected so they might break more easily. You can mix only the water and cement together first, to make sure you get the water and cement mixing properly so that it will harden right, and then mix the aggregates in later. It will be a pretty stiff mix though. Thanks for the vid

[@tonymartinez280]

Great video bro, but you also can re-use the bucket mold putting engine oil burned inside the bucket before adding the concrete mix and then when concrete is cured, just pop up the bucket without cutting it off

[@TheElectricalNut]

Great video. But I was thinking as I was watching that you can add more weight by filling the PVC with concrete

[@madenlaur5073]

I was thinking the same

[@nvenuz2163]

Those are the cleanest DIY Dumbbells I've seen so far. I have 2 questions though: 1. Does some water remain within the concrete, meaning it's gonna add to the weight? 2. Does anyone know what size or shape of the bucket is best to get a nice compact dumbbell rather than a big blocky one?

[@vovasemenenko9458]

What do I do if I don’t have a drill?

[@GlobMarble]

Easy! Get much thinner nails, but still long enough to almost stretch the whole distance of the bucket. Use a hammer to nail them in. You will need much more nails, closer to 12 nails for one bar instead of 4.

[@dopermine2020]

@@GlobMarble just take a cutting player to hold the nail and heat it till hot and insert it, it will slice in like butter, immediately pour water too cool it... Problem fixed...

[@corax2012]

Nice project. you may not notice much loss of weight when cured. Concrete doesn't so much dry, as cure. Water molecules are bonded in the concrete..

[@GlobMarble]

According to Eurocode, dry concrete weights about 24kN/m3, in wet condition it will weights 25 kN/m3 (+1 for mix water)

[@AutOdometer]

Dude that’s really impressive

[@GlobMarble]

Thanks!!

[@mahbubshahidshisir4141]

After casting, try to keep it moist atleast for 7 days to complete the curing process, nice build!

[@dvsn23]

spray the mold with a a lubricant and then you should be able to re use it. also i've read that once the concrete has fully cured (i.e. about 72 hours) you can spray it with truck bed liner. this way it is much less likely to chip.

[@TheClinchMagazine]

6:57 are those numbers in lbs or Kg ?

[@adrianflores6017]

Lbs

[@scavanger1000]

I can get them for like $80-$100 but even that is more than I can afford right now, nice video

[@nkululekonkosi779]

Really enjoyed watching this video 😁.

[@mdemartino71]

Great video man, gyms still not open in NY, crazy. What size container would I need for a 25lb dumbell? Is there a way to calculate how much concrete? Thanks for posting !!

[@SharkRoads]

If you apply some motor oil inside of the bucket before pouring the concrete mix then it will be easy to remove the concrete without cutting the bucket.

[@GlobMarble]

The bucket will not demold because of the scratches inside of it. If you would like to demold the buckets and not waste them, mix the concrete in a separate bucket and pour into a new one. I don't think they would look as cool without the scratches though

[@nimkal]

That's the biggest 35lbs dumbbell I've ever seen

[@danielleiva2609]

very good video, and what kind of pvc is that? do you know how much weight it resists? will hold a 24 kilogram?

[@reynamain22]

If you're worried about it dropping and killing you, you can tape the whole thing and will last a bit longer

[@BeeeHonest]

Place plastic wrap inside the bucket first then pour concrete, and you can pull it out when the concrete dries without cutting it open and reuse it.

[@sarvadhasanatan164]

Thanks , your video helped me to make these weights at home and save some money. Instead of cutting the bucket you can use M-oil and use hair dryer also

[@cmhk9]

That was really good 👍

[@GlobMarble]

Glad you enjoyed it!

[@nilupulranasinghe6302]

Your videos are the best man.. keep up.. your the best..

[@Bob-mn7ob]

As an added bonus, you get to give the finger to “Made in China”.

[@MindbodyMedic]

you could coat them in rubber epoxy or something to save concrete chipping when dropped. what was total cost for this set[minus labour]?

[@vikasmaurya476]

My financial position is very wrost am able to purchase a dumbbell because it's pice will be very high this is good idea I will try 😊 thanks for this beautiful video and idea

[@GlobMarble]

Good luck man!!

[@count7340]

0:38 So they can fit without touching any corners ... in a round bucket. 😀

[@GlobMarble]

lol you got me there :) I meant to say walls

[@rubendekker]

Great great great video!!! Cheers from Amsterdam!

[@GlobMarble]

Thanks for watching!

[@bhimawaskita2540]

Just done this and turned out to be great, but i feel a bit insecure about the pvc so i use metal pipe instead of plastic and to solve the slippery metal pipe when wet, i just use some leftover cloth wrapped around.

[@benjcomau]

That's awesome! I'm going to try and make some of these.

[@GlobMarble]

Good luck!!

[@Goldarrow.89]

spray the weights with truck bed liner to make it stronger also prevents chipping

[@marcusjones457]

I might do this for my cheap home gym, I had seen on instructables that one guy had used galvanized steel with T fitting at the end for the concrete to sink into

[@prettieschicbyflorenceanne3333]

Shaky-handed & off-centre as I tend to be, I'll use two scrap strips of wood to line up the PVC pipe. Trust me, I'll need it, or the weights will be painful to use! - Also saw @Josh Bar's comment from 2020 about using demolding solutions so you don't have to cut away the bucket each time. He said it saves on costs. - I also realise it saves a lot on plastic waste, which is Huge in the world, so anything you can do to reduce That, fantastic!

[@Shreddahtrades]

I made this after seeing your video works great

[@GlobMarble]

Great!! if you like to drop weights after using them, you can give it a good double coating of flex seal to make these indestructible :)

[@hendonburgism]

I recently made dumbbells using leftover lead and cast iron plumbing pipe for the handle. Due to the density of the metal, they appear much smaller than the dumbbells everyone is used to seeing. To recover my pride I made a couple from cast aluminum, these are just too big! If I pretend to strain I look like the hulk.

[@AFishBicycle]

Paint them with Rhino Liner and then even if they crack it’ll stay together and usable.

[@kayots]

Shouldve used a pipe as mold for the handle and made the whole dumbell concrete. Could’ve reduced the overall size of these things by a decent amount. Maybe even make thicker handles (to an extent) as the weight goes up

[@GlobMarble]

You should try that and tell me how it goes

[@PrimalS0ul]

you could've added reinforcement fiberglass or steel fiber for drop-proof.

[@losdenegados3485]

excellent quality tw congratulations you are super, my question to give it different weight has levels inside the mold or are different molds, where you bought it I would like to acquire it

[@loraine.symington]

Thank you so much, so excited to try and make these! 😎

[@Tweakkkkkk]

Wow I love this... I'll have mine done in no time

[@lovelylorenza4000]

you are sooooo creative and talented!!!!!!

[@GlobMarble]

Thanks! :)

[@aniruddhashrivastav8175]

Nice....Lots of love from India

[@MatiasLePors]

Hola, soy de Argentina. Quisiera saber las medidas de los baldes para hacer las mancuernas, el diámetro y la altura de los baldes de las diferentes mancuernas. También quisiera saber que proporción de cemento, piedras y agua. Saludos, abrazo

[@aiden251]

Rub some motor oil on the inside of the pail so you can slide it out and re use it

[@GlobMarble]

The bucket will not demold because of the scratches inside of it. If you would like to demold the buckets and not waste them, mix the concrete in a separate bucket and pour into a new one. I don't think they would look as cool without the scratches though :/

[@wildthoughts6959]

Alternatively , you could have cut-split the pipe ends and stuck a rock inside to form a V at each end . That pipe is going no where with concrete gripping on the V ends. Cheaper and faster , right ?

[@OmeGigaSavior]

I didn't like that the first 10 lbs of concrete was wasted, I don't think it had to be. Just weigh it, and use a longer piece of pvc. Then, measure afterwards to get the handle the right size. Also, I think the buckets could've been reused. The less waste, the better. The electric tape on the handle was a good idea.

[@GlobMarble]

I added a note saying that if you work quickly you wouldn't need to waste anything. Concrete takes a while to set to the point of it not being workable anymore

[@sushant0286]

How to calculate proper weight ?

[@ellistomago3369]

Water does not evaporate out of concrete. It becomes chemically incorporated.

[@GlobMarble]

Most of the water evaporates. This is why you must wait a month before sealing a freshly poured concrete slab

[@twosixfivehemi]

Concrete cures in all conditions even underwater. Evaporation is not a term used in form setting.

[@ellistomago3369]

@@GlobMarble Weigh the barbell after you pour it, and after a month. You will find they weigh nearly the same.

[@miguelangelcano8546]

Wow very simple Job Well done dear

[@Airmanmx1]

while I am at it, can you do a 6 month review? i'm sure the PVC tubing has warped a bit

[@BRUTUSPLAC]

put pvc pipe OVER gas pipe for thickness and better strength

[@bradjames3858]

Wow you are awesome 👌 man thanks for sharing 👍 😀

[@Baneautodetailing]

Would your superplasticizer make concrete weight plates nearly indestructible in a gym setting?

[@GlobMarble]

It would definitely make them way stronger but I wouldn't recommend tossing them around like you would with steel dumbbells. You could once you cover them with bed liner though :)

[@Baneautodetailing]

That's a great idea thanks

[@Baneautodetailing]

Would Fiber reinforcement make a big difference?

[@GlobMarble]

It would help a lot with the entire strength meaning it wont just crack in half once you drop it, but the fibers wont stop the concrete from chipping on the sides. If youre interested we sell fibers here- globmarble.com/index.php?route=product/search&search=fibers

[@Baneautodetailing]

Thanks

[@jeanrosado3484]

We do that in belize but it would be more better to put a steel bar. Or anything metallic inside the pvc pipe so it wont break or crack

[@0ptimal]

Maybe could use fiberglass Bondo instead, very strong and durable. It's a bit light though(and more expensive), one gallon weighs 10lbs, but u could probably put some metal inside of it, to add weight.

[@I5ergeyI]

very cool idea im gonna do this one for sure!

[@GlobMarble]

Go for it!

[@Jerinlf]

Cool video man

[@GlobMarble]

Thanks!

[@ShanonT12]

I think I’m just gonna use rebar to strengthen it even cheaper than aluminum nails. All you need is an angle grinder and a piece of rebar.

[@GlobMarble]

Great idea!

[@dale73056]

How do I know if they are the right weight as it says on them? U mentioned they are not at the right weight while the concrete is still waiting to set. So how do I know how much concrete/water to put so that it sets at the right weight when its finished

[@PochoNieves]

Maybe you should have cut the excess of the buckets only to have some protection around the concrete plus you can paint it back etc...

[@isaiahworks]

You could plastidip the concrete sections to make it look even better! :)

[@maisaanmohamed1267]

You could have put oil on the sides of the mold and mixed the concrete in another tub and pour the mixture into the oiled mold and then done it you wouldn't have to waste those molds as the oil will help the concrete to separate after getting strong and hard

[@ddsfard]

wow dude. nice work and ideas

[@GlobMarble]

Thanks!