Fibers for Permeability Maspeth 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

S & E Building Matls Co
(718) 436-4923
744 Mcdonald Ave, between Ditmas Ave and Cortelyou Rd.
Brooklyn, NY
Lowe's
(718) 682-9027
2171 Forest Avenue
Staten Island, NY
Tonys Hardware & Tool Rental
12414 Liberty Ave
S Richmond Hill, NY
The Home Depot
(516)488-8500
600 Hempstead Turnpike
Elmont, NY
Green Acres Mall
(516) 256-5700
1150 Sunrise Hwy
Valley Stream, NY
Monster Woodshop
888-506-6678
607 18th Street
Brooklyn, NY
Sunset Hardware
(718) 748-0960
8111 5th Ave
Brooklyn, NY
Prince Lumber Company
212-777-1150
404 West 15th St
New York, NY
The Home Depot
(718)661-4608
124-04 31st Avenue
Flushing, NY
The Home Depot
(914)235-7575
55 Weyman Ave
New Rochelle, 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
- Engineered Lumber Maspeth NY
Whether claiming to be greener, straighter, or lighter, these engineered lumber products boast improvements over solid wood and other lumber of their kind.
- Green and Healthy Products Maspeth NY
- Emergency Tire Repair Products Maspeth NY
- High Cement Content Problems Maspeth NY
- Fiber Reinforced Concrete Maspeth NY
- Energy-Efficient Product Reviews Maspeth NY
- High-Build Coatings Maspeth NY