Fibers for Permeability Gloversville 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- Fonda
518-853-1088
25 Broadway St PO Box 544 Fonda, NY, 12068
Fonda, NY
Ace Hardware
(518) 673-8200
54 Dutchtown Plaza, Intersection of NYS Rts. 5 & 10
Palatine Bridge, NY
Tanner Lumber Inc.
(518) 883-3012
4 N Second Ave
Broadalbin, NY
Gloversville True Value Hardware
(518) 773-3030
86-88 E Fulton St
Gloversville, NY
The Home Depot
(518)843-1275
135 Hanaford Plaza
Amsterdam, NY
Noble Ace Hardware
(518) 762-3658
130 S Comrie Ave, Eagle Chevrolet
Johnstown, NY
Lowe's of Amsterdam
518-954-2400
4825 State Highway 30 Amsterdam, NY, 12010
Amsterdam, NY
Amsterdam Riverfront True Value Hardware
(518) 684-6100
1000 River Front Center
Amsterdam, NY
L. J. Hand Farm Center
(518) 922-8311
1431 State Hwy 161
Fultonville, NY
Fort Plain True Value Hardware
(518) 993-3834
12 Willett St
Fort Plain, 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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