Fibers for Permeability New City 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

Colon's Hardware
973-742-5357
306 Market Street
Paterson, NJ
The Home Depot
(973)357-1305
75 McLean Blvd
Paterson, NJ
Lowe's
(845) 613-6000
206 Route 303
Orangeburg, NY
Nanuet Mall
(845) 627-4500
75 W Route 59 Ste 100
Nanuet, NY
Kmart 9414 / Cross Merch
(914) 243-3685
Rte 118 355 Downing
Yorktown Hts, NY
Closure Systems, Inc.- Hackensack
201-646-1655
277 Lodi Street Hackensack, NJ, 07601
Hackensack, NJ
Hometown Hardware
201-768-0330
259 Closter Dock Rd
Closter, NJ
The Home Depot
(845)348-0566
2024 Palisades Ctr Dr
West Nyack, NY
Hackensack - A
(201) 525-5200
436 Main St
Hackensack, NJ
Sears Home Appliance Showroom
(914) 241-2291
360 N Bedford Rd
Mt Kisco, 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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