Fibers for Permeability Watertown 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

Reinman's Dept Store Inc
(315) 686-5222
435 Riverside Dr
Clayton, NY
Fastenal- Watertown
315-782-1200
522 Bradley Street Watertown, NY, 13601
Watertown, NY
Farney's Inc Hme/Bldg Ctr
(315) 493-3500
11099 NYS Rte 26, .25 mile south of McDonalds/Rite Aid on NYS RT 26
Carthage, NY
Lafargeville Agway
(315) 658-2211
Ny Route 411
La Fargeville, NY
Salmon Run Mall
(315) 785-6300
I-81 & Arsenal Rt 3
Watertown, NY
Noble Ace Hardware
(315) 782-5964
531 State St
Watertown, NY
Lowe's
(315) 779-0059
20828 New York State, Route 3 (Arsenal Street)
Watertown, NY
LOWE'S OF WATERTOWN, N.Y.
315 779-0059
20828 NEW YORK STATE, RTE 3 WATERTOWN, NY, 13601
Watertown, NY
Stratton Hardware Ltd
(315) 782-2830
1336 Washington St
Watertown, NY
The Home Depot
(315)788-8539
391 College Heights
Watertown, 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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