Fibers for Permeability Nyack 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- Paterson
973-278-5509
443 Madison Ave Paterson, NJ, 07524
Paterson, NJ
Lowe's of Paterson, NJ
973-341-8102
265 McLean Boulevard Paterson, NJ, 07504
Paterson, NJ
Haworth Hardware
201-384-8146
300 St Nicholas Ave
Haworth, NJ
Lowe's
(973) 341-8102
265 Mclean Boulevard
Paterson, NJ
Hackensack - A
(201) 525-5200
436 Main St
Hackensack, NJ
Fastenal- Buchanan
914-736-0156
12B White St Buchanan, NY, 10511
Buchanan, NY
Lowe's of Clarkstown
845-351-3500
100 Overlook Blvd Nanuet, NY, 10954
Nanuet, NY
Colon's Hardware
973-742-5357
306 Market Street
Paterson, NJ
A-Z Apartment Building Supply
718-620-0202
829 Westchester Avenue
Bronx, NY
The Home Depot
(845)348-0566
2024 Palisades Ctr Dr
West Nyack, 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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