The most used fibers for ECC are PVA and PE, however, these fibers are very expensive. Are there other cheaper and greener materials that can be used as fiber in ECC?
What about SMA fibers ?
See this article please:
Hybrid-fiber reinforced engineered cementitious composite under tensile and impact loading
By: M.A.E.M.Alia, A.M.Soliman and M.L.Nehdi
https://doi.org/10.1016/j.matdes.2016.12.047
Hello Adeyemi,
And how about Glass Fiber Reinforced Polymer (GFRP) ?
There is an article by Larusson:
Chapter Mechanical interaction of Engineered Cementitious Composite ...
Check the following reference Please.. it might's assist you in your question …
https://pdfs.semanticscholar.org/ddf9/2a480f243f6b6ea2beea1ca898cba9ed3a35.pdf
Thank you Hussam Ali Mohammed , Asad Hanif
Ziyad Majeed Abed and Ayowole Alo
Recycled Plastic Fiber-Reinforced Concrete
You could check the papers at this link
https://www.researchgate.net/search.Search.html?type=publication&query=Plastic%20fiber%20in%20concrete
Many researches have used human HAIR in developing fibre-reinforced rconcrete composites, so also are hair from horses, donkeys, sheeps and so on. These hairs have been used as a way of managing waste in beneficial ways. I guess those would be the cheapest, however their material properties need to be checked to match our needs.
Interesting @Babatunde Abiodun Salami . However, how readily is animal and human hair available for large scale construction, because its availability locally will also reduce its cost
Dear Babatunde,
If the research is done in a tropical country, then I recommend the natural fibers of the oil palm.
@Adeyemi Adesina there are huge global waste of human hair, so there is no question of sustainability unless people stop cutting hair. The only job left is to work on sequence of processes involved in the acquisition of the biological fibre (hair).
I think natural fibres from agricultural wast such as bagasse, coir and palm
Bamboo fibre, polyester fiber, pp fiber, fibre from plastic waste can be an alternative.
Be aware that natural fibers tend to degradate in alkaline environments, which is the case of concrete.
Dear Adeyemi,
In my opinion, we can use fibers as a alternatives for ECC.
(i) lignocellulosic fibers-saw saw teak framed ( in different scales (nano- and micro-lengths) as reinforcement in cement-based composite materials), they possess important advantages over synthetic counterparts within the context of a sustainable economy and innovative construction and are widely available in most developing and industrialized countries can be one of best for engineered cementitious composites(ECC).
(ii) fly ash (FA)/waste glass alkaline-based mortars with recycled aggregates reinforced by hemp fibers exposed to accelerated carbon dioxide curing. very less cost material composites
(iii) short curawa as a lignocellulosic fibers.
Ashish
If the objective is to be 'greener' i'd suggest the use of type IV fibers or natural fibers. But be aware that unprocessed natural fibers degrade rapidly in concrete due to the high alkaline pore-water in cementitious composites. But further research can be done to improve the durability and moisture-sensitivity of these natural fibers for use in ECC.
If the objective is 'cheap' then type III or synthetic fibers. Certain type of synthetics can be expensive like carbon and aramid fibers (or even acrylic) but synthetics like nylon, polypropylene, polyethylene, and polyester are relatively cheap to produce, fast to manufacture and versatile in its applications. However, each fibers have their own strengths and weaknesses, depending on its application.
Hope this helps.
Dear adyemi,
Sisal Fiber, Cactus fiber, Coconut ,coir, Palm, banana, fruit fiber, rice husk, jute etc,. etc. we are guiding plenty of students and advise them to do every time new for the composite manufacturing followed by standard principles. they are cheaper but, i am again saying but.... lignocellulosic fibers , fly ash is utmost cheapers. fly ash you can get at very low cost and degrade the alkaline environment, reduce the pH off course binders will be added. comparatively, ECC composites all natural fibers can not be used. they will not capitalize the better strength, I would suggest please go through the properties as well as cost. In my opinion fly ash for you application is good or wood saw dust may give better compressive strength. for cementeous composite you need specific property and you can just try with some of them I have suggested.
PP is not cheaper . Blending is also a problem and recyling cost also will be included in manufacturing process, as well as delamination problem will be there. fruit fiber is not suitable as shell of this is a soft and it decreases the elasticity. Structural reliability will be less.
This is just quoting my opinion.
Hope it is helpful for you.
Ashish
Dear Sir,
We can use nanocellulose which can be easily synthesized by two methods topdown and bottom up process.
- Badges
- Science topic