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

Palmer Ace Hardware
(201) 262-0900
940 Kinderkamack Rd, Charlie Browns Restaurant in Oradell
River Edge, NJ
Fastenal- Paterson
973-278-5509
443 Madison Ave Paterson, NJ, 07524
Paterson, NJ
Hometown Hardware
201-768-0330
259 Closter Dock Rd
Closter, NJ
Greenwood Lumber
845-477-2699
702 Jersey Ave
Greenwood Lake, NY
Bronx-Fordham Rd
(718) 817-7300
404 E Fordham Road
Bronx, NY
Mitchell Simon Co Inc
(201) 568-2108
15 S Dean St
Englewood, NJ
Lowe's
(845) 351-3500
100 Overlook Boulevard
Nanuet, NY
Lowe's of Paterson, NJ
973-341-8102
265 McLean Boulevard Paterson, NJ, 07504
Paterson, NJ
Schall Paint & Hardware
914-965-3339
311 Saw Mill River Rd
Yonkers, NY
The Home Depot
(914)690-9745
150 Midland Ave
Port Chester, 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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