What is FRP rebar? Why don’t we use it?
167,768
Published 2019-06-05
This video talks about the benefits and challenges with FRP. However, FRP is not widely used for several reasons. The biggest challenges are the decreased stiffness and lack of strain before fracture. There are also concerns with fire and long term deflections. The video gives solutions on how to overcome many of these issues but it will require an increase in the cost of the concrete. Finally, the video talks about carbon FRP and the significant potential that it has once the price decreases.
The calculations for basalt rebar are based on properties given here: www.build-on-prince.com/basalt-fiber.html
The cost of carbon FRP is based on prices from Alibaba in comparison to costs of steel rebar in the US for an equivalent concrete slab. This number will be different for other members but the point is that carbon FRP is a lot more expensive. I am sure it will come down in the future.
My website is:
www.tylerley.com/
If you would like to donate to my channel please visit
www.tylerley.com/giving
A huge thanks to Hailey Goodale, my director of awesome, for editing this video.
All Comments (21)
-
hey Tyler just a shout out for ya. Reall appreciate the videos you do. I've worked as a a project engineer and now assistant superintendent on a number of IDOT projects in Illinois. Unfortunately I now work in MN doing commercial roofing but I still love concrete. I wish your videos/knowledge/passion for the crete was more widespread. Thanks, and please continue!
-
Appreciate the informative content. As a cost estimator it’s a great way of staying informed of what the industry is doing.
-
I'm not in construction business. I did not know shit about concrete just a few months ago. But i just. cant. stop. watching.
-
Man, i'm from Brazil and your videos are great!! Thanks for the information!
-
As someone working in linguistics field, I can only thank Tyler for his super-enthusiastic way of explaining these things. I am now working as a translator for a huge railway system reconstruction project and many documents I work with deal with these topics. Turns out they can be interesting to a non-professional as well!
-
great video man, i watch many of your video and what i like about it is you show many of the latest research in the field, as new as 2019!
-
In my town (near Racine, Wisconsin), we have some sidewalks in the older neighborhoods that were laid down from 1902 to 1905 that are practically perfect. We also have a lot of sidewalks from the 1970's-80's that are in need of replacement due to cracking/spalling. I don't know if it is the formula (the concrete is a little darker than concrete used today) or the workmanship, but those turn-of-the-20th-century guys who were using horse-drawn wagons, water from barrels and brute strength really knew what they were doing.
-
Amazing content delivery, Tyler. Great videos! Your friends from Canada
-
Your explanation about concrete are very precise and crispy. You are doing a wonderful job by spreading required knowledge. 👍👍👍
-
Other benefits of FRP rebar are no electrical conductance, no RF interference, no corrosion, and reduced cost of shipping, handling, and installation due to it’s light weight. I am planning on building a house and shop, so I am learning about materials, methods, and build science. FRP rebar in ICF structure has my intrigue.
-
Just a quick rebuke those that say potato quality... i’m learning about concrete from a professor thousands of miles away, its amazing and its free... from the UK, thanks Prof Ley!
-
Like the new gray background. This was an informative video not only about concrete reinforcement but about the general idea of stress strain curves. I thought I was familiar with that but the clear cut explanation added to my understanding. On the video before this I mentioned what appeared to me to be the very good performance of the concrete used to construct the Monterey aquarium 36 years ago. In general, what was best practice 36 years ago for building concrete structures in close contact with saltwater spray? Maybe in a future video you might talk about how well they are doing at making concrete structures on the east coast that need to contend with road salt. I noticed a lot of bridges with substantial rust damage when I was in MA recently.
-
Ive been doing a patio expansion; multiple sections (Im doing it all myself, so each section is small enough for 1 or 2 people to work.) Wrapping the patio from the back yard around the garage, and to connect to the driveway. Ive have been overbuilding much of it, so I can be confident it will last, and one of the things I was so excited about was finding this fiberglass rebar. I use regualr steel rebar inside the each slab, so I can bend it and weld it together, but then use the fiber glass to tie each section together through the expansion joint, so I dont worry about corrosion creeping into the slab as if I had used steel bar to tie each section together. Though I do run a #6 solid copper to continue the equipotential bonding plane.
-
I am so satisfied to be told the facts and as a bonus have these facts explained to me in detail. I have just learned about Basalt rebar yesterday and now I have the facts. I also have learned about the different matting and cloths that are made from Basalt . My hobby was building airplanes and will be in my future so I am trying to learn of every material that I can use for cost , safety , work-ability and accessibility . Thanks for the info.....
-
Great video, I work with carbon fibre and believe carbon fibre costs will continue to go down. I think we are about a decade away from seeing carbon fibre rebar in mainstream usage.
-
Great video Tyler! Greeting from Scandinavia!
-
Awesome video, you perfectly explained what I was looking for, thank you. Looking for stainless steel rebars next as an alternative, you must have addressed that too.
-
Yow Tyler, I was just about to present on GFRBs as a solution to steel corrosion in concrete. but when I looked on the negatives in your video ...I had to call it off :). Thanks for the detailed info. I'm from Jamaica.
-
Thanks for informative video !
-
I'm a mechanical engineer, specialize in fibreglass structures (Pat pending).. It's a perfect explanation to generally sought after questions. But I find still something missing in all research carried out.. Hope to make necessary tests before publishing in scientific journal OR may be apply for a Pat. But kudos to your presentation..
