Fibers for Permeability Rockville Centre 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

Roberts Plywood Co.
800-422-4944
45 North Industry Court
Deer Park, NY
Pintchik
(718) 783-3333
478 Bergen St
Brooklyn, NY
GENERAL MACHINERY INC
(212) 226-7835
358 BROOME STREET NEW YORK, NY, 10013
New York, NY
Howard Supply
212-971-3127
399 8th Avenue
New York, NY
Kmart 3861 / Cross Merch
(631) 661-1234
1000 Montauk Hwy
West Babylon, NY
Monster Woodshop
888-506-6678
607 18th Street
Brooklyn, NY
Suburban Mills
631-351-6445
16 Railroad St
Huntington Station, NY
ACE TOOL REPAIR INC
(516) 783-8899
2201 WANTAGH AVE WANTAGH, NY, 11793
Wantagh, NY
Ace Hardware of Rockville Centre
(516) 568-2301
315 Sunrise Hwy, between Morris and N.Park
Rockville Centre, NY
Bic Supply
718-330-1800
Brooklyn Navy Yard Bld131
Brooklyn, 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