Fibers for Permeability Uniondale 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

Suburban Mills
631-351-6445
16 Railroad St
Huntington Station, NY
Costello's Ace Hardware
(631) 422-5566
448 Union Blvd
West Islip, NY
The Home Depot
(718)401-2520
600 Exterior Street
Bronx, NY
Kmart 9419 / Cross Merch
(718) 821-2412
66-26 Metropolitan Ave
Middle Vlg, NY
N Babylon/Deer Pk - Sears Hardware Stores
(631) 667-3958
20 Deer Shore Sq
North Babylon, NY
Roberts Plywood Co.
800-422-4944
45 North Industry Court
Deer Park, NY
Costello's Ace Hardware
(516) 221-0010
2667 Merrick Rd
Bellmore, NY
Idlewild Do it Best Hardware
718-528-1075
157-17 Rockaway Blvd
Jamaica, NY
The Home Depot
(631)789-9200
1101 Sunrise Highway
Copiague, NY
Sunrise Mall
(516) 797-2400
800 Sunrise Mall
Massapequa, NY
Data Provided by:
  

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

Related Articles