Fibers for Permeability Yorktown Heights 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

Fastenal- Fishkill
845-897-4721
115 Old Route 9 Fishkill, NY, 12524
Fishkill, NY
Lowe's of Clarkstown
845-351-3500
100 Overlook Blvd Nanuet, NY, 10954
Nanuet, NY
Family Discount Center
(914) 939-4321
112 S Ridge St
Rye Brook, NY
Lowe's
(203) 546-6962
67 Eagle Road
Danbury, CT
Kmart 9462 / Cross Merch
(845) 561-2334
374 Windsor Hwy Rte 32
Vails Gate, NY
Williams Lumber Inc
(845) 221-2751
908 Route 82
Hopewell Junction, NY
Fastenal- Suffern
845-357-9515
11 Washington Avenue Suffern, NY, 10901
Suffern, NY
LOWE'S OF ORANGEBURG, NY
845 613-6000
206 ROUTE 303 ORANGEBURG, NY, 10962
Orangeburg, NY
Keough's Paint & Hardware
203-544-8379
1 Ethan Allen Highway
Ridgefield, CT
Kmart 9415 / Cross Merch
(845) 628-6247
987 Route 6
Mahopac, 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 Yorktown Heights 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.
- Green and Healthy Products Yorktown Heights NY
- Engineered Lumber Yorktown Heights NY
- Emergency Tire Repair Products Yorktown Heights NY
- Fiber Reinforced Concrete Yorktown Heights NY
- Energy-Efficient Product Reviews Yorktown Heights NY
- High-Build Coatings Yorktown Heights NY