Fibers for Permeability Nanuet 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.

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Fastenal- Yonkers
914-378-0901
200 Saw Mill River Rd Yonkers, NY, 10701
Yonkers, NY
On Time Supply
845-352-8600
14 Melnick Dr Monsey, NY, 10952
Monsey, NY
Schall Paint & Hardware
914-965-3339
311 Saw Mill River Rd
Yonkers, NY
The Home Depot
(845)781-4307
254 Larkin Drive
Monroe, NY
Willowbrook Mall
(973) 890-2000
50 Route 46
Wayne, NJ
Lowe's
(845) 351-3500
100 Overlook Boulevard
Nanuet, NY
LOWE'S OF ORANGEBURG, NY
845 613-6000
206 ROUTE 303 ORANGEBURG, NY, 10962
Orangeburg, NY
Ace Hardware
(201) 768-7377
206 Pegasus Ave
Northvale, NJ
Andre's Hardware
914-793-7012
94 Kraft Ave
Bronxville, NY
White Plains - A
(914) 644-1400
100 Main St
White Plains, 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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