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) 793-3812
710 Horatio Street
Utica, NY
Lowe's of New Hartford
315-351-4242
4699 Middle Settlement Road New Hartford, NY, 13413
New Hartford, NY
LOWE'S OF UTICA, N. Y.
315 793-3812
710 HORATIO STREET UTICA, NY, 13502
Utica, NY
Cavo Builders Supplies
315-724-5970
1027 Jefferson Ave
Utica, NY
Kmart 4362 / Cross Merch
(315) 736-0876
4645 Commercial Dr
New Hartford, NY
Lowe's
(315) 351-4241
4699 Middle Settlement Road
New Hartford, NY
Fastenal- Utica
315-792-9002
2150 Oriskany Street West Utica, NY, 13502
Utica, NY
Lowe's of Oneida
315-366-3100
1200 Lowe's Drive Oneida, NY, 13421
Oneida, NY
K & S Lumber Co., Inc.
315-245-0255
McConnellsville Road
Camden, NY
Oneida - Sears Hardware Stores
(315) 363-7733
1032 Oneida Plaza Dr
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.

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