Fibers for Permeability Rome NY

Permeability is defined as the property that governs the rate of fluid flow through a porous solid (Ref. 1). The porosity of cement paste determines the permeability of concrete (Ref. 2). The water-cement ratio is one of the largest contributors to porosity development, but, on the whole, porosity is determined through chemical interaction.

Local Companies

Lowe's
(315) 709-3000
1230 Erie Blvd. West
Rome, NY
McQUADE & BANNIGAN INC
(315) 724-7119
1300 STARK STREET UTICA, NY, 13502
Utica, NY
Kime's Do it Best Home Center
315-697-3232
3381 Seneca Turnpike
Canastota, NY
Rome General Lbr Co Inc
(315) 336-2600
529 Erie Blvd W
Rome, NY
Oneida - Sears Hardware Stores
(315) 363-7733
1032 Oneida Plaza Dr
Oneida, NY
Lowe's
(315) 351-4241
4699 Middle Settlement Road
New Hartford, NY
Lowe's of New Hartford
315-351-4242
4699 Middle Settlement Road New Hartford, NY, 13413
New Hartford, NY
Ace Hardware of Rome
(315) 336-7800
115 Black River Blvd
Rome, NY
Kime True Value Hdwe
(315) 363-8302
21 Seneca Ave
Oneida Castle, NY
Lowe's
(315) 366-3100
1200 Lowe'S Drive
Oneida, NY

Source: THE CONCRETE PRODUCER/CONCRETE JOURNAL MAGAZINE
Publication date: March 1, 2001

Question: A customer has asked us to include fibers in the mix design for a water retention tank. The idea is that the fibers will reduce the permeability of the concrete. Is that true?

Answer: There are really two responses here. The first defines permeability, and the second determines how fibers affect permeability.

Permeability is defined as the property that governs the rate of fluid flow through a porous solid (Ref. 1). The porosity of cement paste determines the permeability of concrete (Ref. 2). The water-cement ratio is one of the largest contributors to porosity development, but, on the whole, porosity is determined through chemical interaction. Since the fibers themselves are chemically inert and have no interaction with cementitious reactions, it is not possible for the fibers to decrease the permeability of concrete.

However, this is not to say that fluid will not flow through the concrete at a different rate when fibers are present. In a simple sense, fibers are small, flexible aggregates. As such, they create a small matrix of aggregates within the larger concrete matrix. If moisture flows through concrete via the cement paste, then the fibers create a more tortuous path. The more tortuous the path, the longer it takes the water takes to traverse it.

Click here to read full article from The Concrete Producer

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