Fibers for Permeability Mastic 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

Costello's Ace Hardware
(631) 467-6565
2120 Middle Country Rd, Pathmark
Centereach, NY
Fastenal- Holbrook
631-218-3485
920 Lincoln Ave Holbrook, NY, 11741
Holbrook, NY
Grays True Value
(631) 924-3205
1878 Route 25
Ridge, NY
The Home Depot
(631)286-4665
10 Gateway Blvd
Patchogue, NY
Kmart 4868 / Cross Merch
(631) 369-0040
605 Old Country Rd
Riverhead, NY
Oakdale Paint & Hardware
(631) 567-9705
1460 Montauk Hwy
Oakdale, NY
DYNAMITE TOOL CO
(631) 563-8181
1551 SMITHTOWN AVENUE BOHEMIA, NY, 11716
Bohemia, NY
Ace Hardware
(631) 751-9500
Three Vlg Shpg Ctr, 1366 Rte 25 A, King Kullen Shopping Center
East Setauket, NY
The Home Depot
(631)234-2670
301 South Research Place
Central Islip, NY
The Home Depot
(631)732-9200
401 Independence Plaza
Selden, 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 Mastic 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.
- Energy-Efficient Product Reviews Mastic NY
- Fiber Reinforced Concrete Mastic NY
- Emergency Tire Repair Products Mastic NY
- Engineered Lumber Mastic NY
- Green and Healthy Products Mastic NY
- High-Build Coatings Mastic NY