Fibers for Permeability Saratoga Springs 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- Mechanicville
518-899-5835
2381 Route 9 Bldg 2 Suite 4 Mechanicville, NY, 12118
Mechanicville, NY
LOWE'S OF HALFMOON, NY
518 348-2940
476 ROUTE 146 HALFMOON, NY, 12065
Halfmoon, NY
Burnt Hills Hardware & Supply Co
(518) 399-8141
217 Kingsley Rd
Burnt Hills, NY
The Home Depot
(518)348-0158
4 Halfmoon Crossing Blvd
Halfmoon, NY
Clifton Park - D
(518) 383-6910
15 Park Ave
Clifton Park, NY
Noble Ace Hardware
(518) 761-6777
80 William St, Hannaford on Rte. 9
South Glens Falls, NY
GUNS & HOSES
(518) 746-9040
1075 Dix Ave Hudson Falls, NY, 12839
Hudson Falls, NY
LOWE'S OF SARATOGA SPRINGS, NY
518 583-3777
10 LOWE'S DRIVE SARATOGA SPRINGS, NY, 12866
Saratoga Springs, NY
Phillips Hardware
518-459-2300
42 Saratoga Ave
Waterford, NY
Lowe's
(518) 952-8789
93 Freemans Bridge Road
Glenville, 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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