Fibers for Permeability Peekskill 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

Fastenal- Newburgh
845-564-1552
13 Jeanne Drive Newburgh, NY, 12550
Newburgh, NY
Buchanan Home Center, Inc
914-737-1912
3119 Albany Post Rd
Buchanan, NY
Sloatsburg Hardware
845-753-2725
88 Orange Turnpike
Sloatsburg, NY
The Home Depot
(845)279-9669
80 Independence Way SE
Brewster, NY
Sears Home Appliance Showroom
(914) 241-2291
360 N Bedford Rd
Mt Kisco, NY
Fastenal- Buchanan
914-736-0156
12B White St Buchanan, NY, 10511
Buchanan, NY
LOWE'S OF ORANGEBURG, NY
845 613-6000
206 ROUTE 303 ORANGEBURG, NY, 10962
Orangeburg, NY
Herb Lack Paints & Hardware
845-358-0293
124 Main Street
Nyack, NY
The Home Depot
(914)528-1539
3131 E Main St
Mohegan Lake, NY
Nanuet Mall
(845) 627-4500
75 W Route 59 Ste 100
Nanuet, 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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