Fibers for Permeability Saint James 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

Roberts Plywood Co.
800-422-4944
45 North Industry Court
Deer Park, NY
Costello's Ace Hardware
(631) 243-2220
770-14 Grand Blvd
Deer Park, NY
Fastenal- Holbrook
631-218-3485
920 Lincoln Ave Holbrook, NY, 11741
Holbrook, NY
Islip True Value Hardware
(631) 581-0951
445 Main St
Islip, NY
Lowe's
(631) 687-6220
825 Montauk Highway
East Patchogue, NY
EXOTIC WOODS USA
(631) 651-8651
698 Fort Salonga Rd
Northport, NY
Suburban Mills
631-351-6445
16 Railroad St
Huntington Station, NY
Lowe's
(631) 406-2015
2150 Nesconset Highway
Stony Brook, NY
Caguas Commercial
(787) 743-4001
Carretera 189 Km 2.5
Caguas, NY
Suffolk Supply True Value
(631) 924-3935
1504 Rocky Point Rd
Middle Island, NY
Data Provided by:
  

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 Saint James 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 Saint James NY
- High-Build Coatings Saint James NY
- Green and Healthy Products Saint James NY
- Fiber Reinforced Concrete Saint James NY
- Engineered Lumber Saint James NY
- Energy-Efficient Product Reviews Saint James NY