Fibers for Permeability Nyack 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

Ludewig's Hardware
201-836-4991
321 Queen Anne Road
Teaneck, NJ
Kelloggs & Lawrence
914-232-3351
26-30 The Parkway
Katonah, NY
The Home Depot
(201)336-3041
450 Hackensack Ave
Hackensack, NJ
Midland Park - Sears Hardware Stores
(201) 447-1995
80 Godwin Ave
Midland Park, NJ
Kmart 9414 / Cross Merch
(914) 243-3685
Rte 118 355 Downing
Yorktown Hts, NY
Ace Hardware
(201) 768-7377
206 Pegasus Ave
Northvale, NJ
A-Z Apartment Building Supply
718-620-0202
829 Westchester Avenue
Bronx, NY
Modern Paint & Hardware Corp
914-632-8060
316 Huguenot St
New Rochelle, NY
The Home Depot
(914)593-7110
1 Saw Mill River Road
Hawthorne, NY
Kmart 7654 / Cross Merch
(718) 671-5377
300 Baychester Ave
Bronx, 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
- Fiber Reinforced Concrete Nyack 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.
- Green and Healthy Products Nyack NY
- High Cement Content Problems Nyack NY
- Energy-Efficient Product Reviews Nyack NY
- High-Build Coatings Nyack NY
- Engineered Lumber Nyack NY
- Emergency Tire Repair Products Nyack NY