Fibers for Permeability Scarsdale 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- Yonkers
914-378-0901
200 Saw Mill River Rd Yonkers, NY, 10701
Yonkers, NY
Queens Lumber Company, Inc
718-539-0400
34-41 College Point Blvd
Flushing, NY
The Home Depot
(516)997-9595
86 Jericho Turnpike
Jericho, NY
Hackensack - A
(201) 525-5200
436 Main St
Hackensack, NJ
Sears Home Appliance Showroom
(914) 241-2291
360 N Bedford Rd
Mt Kisco, NY
Fastenal- Woodside
718-507-8193
57-08 37th Avenue Woodside, NY, 11377
Woodside, NY
Morales Department Store
718-299-6668
1862 Jerome Ave
Bronx, NY
Jp Home Arama Inc
(973) 427-0002
111 Wagaraw Rd, HAWTHORNE DISCOUNT CENTER
Hawthorne, NJ
The Home Depot
(212)929-9571
40 West 23rd Street
New York, 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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