Fibers for Permeability Delmar 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

Lowe's
(518) 956-9407
1482 Central Avenue
Colonie, NY
LOWE'S OF HALFMOON, NY
518 348-2940
476 ROUTE 146 HALFMOON, NY, 12065
Halfmoon, NY
A. Phillips Hardware
518-861-5364
Osborne Corners
Altamont, NY
The Home Depot
(518)388-9121
2500 Cambridge Rd
Schenectady, NY
Latham - D
(518) 783-6101
195 Troy Schenectady Rd
Latham, NY
Tremont Lumber Co Inc
(518) 674-3836
2897 Route 43
Averill Park, NY
Lowe's of Albany
518-956-9407
1482 Central Ave Colonie, NY, 12205
Colonie, NY
LOWE'S OF NISKAYUNA, NY
518 382-8371
422 BALLTOWN ROAD SCHENECTADY, NY, 12304
Schenectady, NY
A. Phillips Hardware
518-765-2377
18 South Main St
Voorheesville, NY
Rotterdame Sq Mall
(518) 386-5200
93 W Campbell Rd
Rotterdam, 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

Related Articles
- High Cement Content Problems Delmar NY
Portland cement gives a mortar added durability, high early strength, a consistent hardening rate, and high compressive and bond strengths. However, mortar with excessively high cement contents can affect water permeability and durability of the masonry.
- Emergency Tire Repair Products Delmar NY
- Engineered Lumber Delmar NY
- Energy-Efficient Product Reviews Delmar NY
- High-Build Coatings Delmar NY
- Green and Healthy Products Delmar NY
- Fiber Reinforced Concrete Delmar NY