Fibers for Permeability Middletown 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

Monroe WHS/Matamoras
504 9th Street Matamoras, PA, 18336
Matamoras, PA
Wadeson Home Center Inc.
845-986-2215
60 Forester Avenue
Warwick, NY
Otisville True Value Hardware
(845) 386-3343
Po Box 866 10 Wallace Street
Otisville, NY
The Home Depot
(845)561-6540
1220 Route 300
Newburgh, NY
Newburgh Mall
(845) 566-2300
1401 Route 300
Newburgh, NY
Fastenal- Newburgh
845-564-1552
13 Jeanne Drive Newburgh, NY, 12550
Newburgh, NY
Roe Brothers
845-651-4025
65 Maple Avenue
Florida, NY
Webers Hardware & Paint
845-895-2781
22 Wallkill Ave
Wallkill, NY
The Home Depot
(845)781-4307
254 Larkin Drive
Monroe, NY
Lowe's
(570) 491-9440
115 Wenlock Road
Matamoras, PA

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
- Fiber Reinforced Concrete Middletown NY
Over the last few decades, material scientists have improved concrete mix designs using technology that has increased strength, durability, placing, and improved environmental aspects. Perhaps the brittle nature of concrete is the last technological barrier to attack.
- High-Build Coatings Middletown NY
- Engineered Lumber Middletown NY
- Green and Healthy Products Middletown NY
- Emergency Tire Repair Products Middletown NY
- Energy-Efficient Product Reviews Middletown NY
- High Cement Content Problems Middletown NY