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

Family Discount Center
(914) 939-4321
112 S Ridge St
Rye Brook, NY
Modern Paint & Hardware Corp
914-632-8060
316 Huguenot St
New Rochelle, NY
Sloatsburg Hardware
845-753-2725
88 Orange Turnpike
Sloatsburg, NY
Empire Tools, LLC
914-937-1773
21 Abendroth Avenue Port Chester, NY, 10573
Port Chester, NY
Kmart 9414 / Cross Merch
(914) 243-3685
Rte 118 355 Downing
Yorktown Hts, NY
Lowe's
(845) 351-3500
100 Overlook Boulevard
Nanuet, NY
Haworth Hardware
201-384-8146
300 St Nicholas Ave
Haworth, NJ
Pomona Do it Best Hardware
845-364-5678
1581 Route 202
Pomona, NY
The Home Depot
(914)963-3003
601 South Sprain Rd
Yonkers, NY
Cross County S/C
(914) 377-2100
Rte 87(Ny St) & Cross Ct Pkwy
Yonkers, 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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