Because of this video I insisted on fiber reinforced and rebar for my patio and driveway. The concrete guys were telling me that what I wanted was a commercial grade job and that I was overdoing it. My resonance was 1. I’m paying so I get what I want 2. I’m the one that going to live with the concrete on a daily basis for the rest of my life NOT them. I couldn’t be happier with the results, thanks for posting and educating people. Now we know more than most concrete guys hahaha
@Veldtian1 Жыл бұрын
Better to over do it then under do it.🤜
@schakravorty1021 Жыл бұрын
Are these glass fiber or polypropylene fiber? Which one is better for concrete mix?
@boomfar4760 Жыл бұрын
You are right about you pay for what you want but it’s usually rebar or fiber not both. This is me who work with one of the biggest companies in the world using concrete in a complex and tough environment
@Promilus1984 Жыл бұрын
@@boomfar4760 why not both? Each has unique properties and they're complementary...
@onedayagogo6 ай бұрын
yep ! right on ! ✊
@austinlangford45207 жыл бұрын
A very clever way to simulate or speed up time and show the long term fibre benefits of fatigue, impact including loads, energy absorption and stress etc - enhancing the lifespan and durability of concrete.. Non corrosive as well.
@tims95272 жыл бұрын
What this tells me is to NEVER bid a concrete demolition job with 7 lb per CY macro fibers!
@matheusfaria7230 Жыл бұрын
lol
@hamzisharky87935 ай бұрын
Please tell me what does it mean by CY ? Is cy = m³ ?
@mds63873 жыл бұрын
Demolition nightmare.
@523hotsauce6 жыл бұрын
Giant difference between 1 lb vs 7lbs of fiber per cubic yd--note that the macro fiber block had SEVEN lbs. and the other two that had any fiber had 1 lb. and 1.5 lb. fiber/cubic yd. respectively. Wonder what the results would have been if they all had 7 lbs./cubic yd.
@gracilism6 жыл бұрын
7lbs is on the high side, but not an atypical installation. My current foundation calls for 5lbs/ cy with no steel. I'm unsure is the other materials densities are what they are because that is their manufacturers' recommendations.
@shawnr7716 жыл бұрын
LBS is pounds of material to cubic yards of concrete. so 7 pounds of macro fibers to 1 cubic yard of concrete. They are using fiber material as an additive to concrete to give it strength. Depending on the job requirements. Fibers are required in concrete and masonry materials. There are now certain ISO standards that allow some types of fibers to replace or reduce the amount of bar(steel) in concrete. One thing to be careful of is contractors using a sub grade fiber. Some of those fibers will actually deteriorate in concrete. IF you use only fiber without steel reinforcement insure that your contractor is using the approved fibers. I would like to know what curing process was used.
@DummyFace1233 жыл бұрын
For blocks like those for testing, I imagine just submerged em in a kiddy pool or something
@rosseryn82163 жыл бұрын
We know how much Macro synthetic. But what is the specific material? There are pages of Macro synthetic fibers.
@Alastair5102 жыл бұрын
Would have been nice to have seen a comparison with rebar.
@whyme50242 жыл бұрын
With rebar or mesh, concrete will still crack but the pieces will hold together.
@outdooreng49737 жыл бұрын
crazy .... so so powerful block ....you will not see this powerful resistance in other normal bars reinforced concrete
@glhfsport46825 жыл бұрын
so macro seems the way to go huh? but is this expected? becuse you have 7 lbs/cy and much less in the others. or is that what is recommended?
@maritimer95gt3 ай бұрын
Awesome video.
@irismartink275113 күн бұрын
Watching it in 2024, 9 years later, I'm amased we're still using rebars...
@JustinCrediblename7 жыл бұрын
fibers actually doing their job? this will change the reputation of fiber.
@adrianobonaldo89413 жыл бұрын
I know for sure that in Italy there is a building with concrete columns and beams where the engineers used stainless steel fibers oriented in the mixing, instead of classic steel rods bars.
@darthvader53003 жыл бұрын
@@adrianobonaldo8941 In the 1950s we have used graded triple-twisted stainless steel fibers made out of high strenght stainless chrome-moly-nickel-vanadium high manganese steel fibers of which 3 of them are twisted together in a 33 degree angle forming a single steel fiber .20 millimeter in diameter or 1/5th of a millimeter thick. And are graded at 1", 2", 3" inches in lenght at 1 cubic foot, 2 cubic feet, and 3 cubic feet in volume or a cube 2", 4", and 6" in width and 12 inches in height and 12 inches in lenght of which the 1st is divided by 1 ", 2", and 3" in subdivided lenghts. And 1 cube of that is added per cubic yard of concrete of 2 parts cement, 1 part sand, and 2 parts gravel but in practice 3 to 4 such cubes are added. It is mixed with 1.25 parts water or more with superplasticizers inorder to form (military grade) a semi-plastic and semi-liquid concrete mix. It is pre-mixed thoroughly first before the water pre-mixed with the superplasticizers is added in a high speed cement concrete mixer. Proper use of concrete vibrators are used to remove air bubbles with causing the gravel to accummulate at the bottom but the plasticizers were also modified to make sure that no air bubbles are present and it is self-flowable and self-placing. We use military grade strenght refractory calcium aluminate cement of the early high strenght type that cures and hardens in 6 to 12 hours. It achives full strenght in 6 to 12 hours that a heavy tank and travel right over it and park on it without any problems. This type of concrete is used for military purposes but we added 10% basic silicon based geopolymers to it during the pre-mixing period before water is added and has to be poured within 15 minutes. The use of many high speed cement concrete mixers is necessary and they should be timed paralell of each other so that they can pour simultaneously the required amount into the molds.
@sugianto42192 жыл бұрын
Thank you for sharing these. It's really helpful. ☺👍
@conradnudd73983 жыл бұрын
Why didn’t you use the same weight per cy for all the fiber? I want to build a swimming pool by digging a trench for the perimeter and pouring fibramesh concrete, why wouldn’t that work? After the pour I would dig out the inside of the pool then pour the bottom.
@CONCRETEMANtv Жыл бұрын
Mono Filament Micro fiber? That cube was harder to hammer then the control block? Cant see how. This test seems that it is not fully accurate and further testing is needed. Use a bit bigger hammer and have multiple blocks of each in case anomaly.. Thanks for making the video.
@djilyaz2 жыл бұрын
The new asbestos
@bashkillszombies4 жыл бұрын
Why would you set 1lb/cy up against 7lb/cy? Kind of an unbalanced test isn't it?
@alexsarabura83543 жыл бұрын
They are different fibers, different dosage rates Specific gravity is different for both
@h.b20293 жыл бұрын
Excellent. very helpful. Thanks. God Bless.
@terencecampugan25586 жыл бұрын
what is the macro synthetic fiber did you used?
@freeman61474 жыл бұрын
0:10 The video says 7 lbs / cubic yard
@jhyrumgrant4 жыл бұрын
That's not terribly useful as there's no numerical standard for the destruction. How much psi per second before failure? Tensile performance? It's a anecdotal demonstration.
@Veldtian1 Жыл бұрын
It's the same force applied to all samples, c'mon.
@vanchinh87795 жыл бұрын
wao. tỷ lệ sợi thủy tinh trên xi măng? 2 - 10% slab concrete 13mm ?
@clydecox21082 жыл бұрын
I like it.
@jamaludinshamsudin48215 жыл бұрын
this test is not relevant. we need strenght test such as loading test like a beam or the floor strenght test which serve to it purpose.
@rogerwoodland25875 жыл бұрын
this is the way to go
@freeman61474 жыл бұрын
It's relevant for anyone who wants to protect their concrete from a Jack-hammer.
@richhagenchicago4 жыл бұрын
I noticed the amounts of fiber added were significantly different for the different types. Why? was it a vendor recommended amount? It appears clear that the fibers add some tensile strength to the concrete. Although from the 'jack hammer test' I can not quantify how much. I also can not tell if it has an impact on compressive strength. I would also have liked to have seen beam testing and compression testing in a press in addition to the jack hammer test. Also how do the fibers impact the permeability of the concrete as that leads to spalling and other defects in freeze thaw cycles in particular, and degradation of rebar and reinforcing. I would guess that fiber reinforcing is beneficial, but I would want to make sure I was not trading a benefit in one property for a deficit in another that could impact my project more.
@emperorhadrian60113 жыл бұрын
Bunkers...
@odera82892 жыл бұрын
It is relevant for demolition engineers
@HIM-assoqy7 жыл бұрын
what u mean by lb/cy ?
@Survivorguidetv7 жыл бұрын
lb/cy means Pounds per cubic yard of concrete.
@boogerking74115 жыл бұрын
It's an ancient languange used by elders
@blastking20066 жыл бұрын
Sweet
@islandfantasy59315 жыл бұрын
Nice try. That layer under the product you are promoting is the reason why it lasted longer.
@waro98015 жыл бұрын
Yeah, that is suspicious that the best product also appears to have something under it absorbing some of the impacts.
@curtissharris89144 жыл бұрын
Nothing under look when it's split...
@whyme50242 жыл бұрын
Not so. It is real. I am a scientist and developed one of these.
@chinhvannguyen16855 жыл бұрын
How many fiber Do you mix in concrete?
@Ariccio1234 жыл бұрын
It says it in the video
@williambaker77814 жыл бұрын
@@Ariccio123 l
@theebalz Жыл бұрын
3% of the total concrete has been found to approximately triple the psi of the Concrete.
@GauravSingh-zz9rf Жыл бұрын
@@theebalz 3% by volume right
@boomfar4760 Жыл бұрын
Do not use vibration when casting concrete with fiber. Never! That’s a amateur mistake
@sundhararaja14293 жыл бұрын
What is the fucking Thing on the bottom of that fucking macro fiber concrete
@felixgwalls56015 жыл бұрын
Good day sir. Can I have your contact
@blastking20066 жыл бұрын
Is this air crete
@TheRobojay6 жыл бұрын
no by the looks of this. For some reason it's on an aircrete playlist but it is still a great video nonetheless.
@LoisMcQuinn5 жыл бұрын
i was wondering what would happen if you added fibers to air crete...something to think on.
@blastking20066 жыл бұрын
What does macro synthetic mean 7 ibs
@utubeape5 жыл бұрын
small fibres of a synthetic type such as nylon, PU, fibreglass etc added to the mix 7lb per cubic yard
@blackbuddhaa3 жыл бұрын
2 inch polypropylene fibers with approx 0.8 specific gravity
@22jduran7 жыл бұрын
Hmm..I'm not sure if id be doing that on a finished slab....
@Survivorguidetv7 жыл бұрын
Maybe they know a good place to get some new concrete?
@vikashkumaryadav97062 жыл бұрын
Is code
@SyedJunaid-qj2sf2 жыл бұрын
This video is totally fake very intelligently operated this powered drill machine why you are not showing the fully operated drill machine
@scottprather56453 жыл бұрын
. So you put four times more of the one brand and this is supposed to be a meaningful test of the product? An absolutely useless demonstration
@vanderumd113 жыл бұрын
The volume is the same, weight of strand is different
@isaacwillson86173 жыл бұрын
No sir - you need to buy the product- it speaks for itself- there is no money back guarantee because you will be happy with it- please try not to think too hard- you need to spend the money to get the results- you will see- you need to buy first and then complain later- you can not complain if you do not spend the money first- isn’t that right?