Fibers for Permeability Elmhurst 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

Lowe's
(718) 249-1151
118 2Nd Avenue
Brooklyn, NY
Cross Bay Hardware
(718) 848-5699
158-18 Cross Bay Blvd
Howard Beach, NY
Decorama Bldg & Plb Supply Inc
718-651-1800
1233 Metropolitan Ave
Brooklyn, NY
The Home Depot
(973)472-4600
955 Bloomfield Ave
Clifton, NJ
The Home Depot
(718)827-9568
579 Gateway Drive
Brooklyn, NY
Monster Woodshop
888-506-6678
607 18th Street
Brooklyn, NY
Allied Building
(201) 935-0800
15 East Union Avenue East Rutherford, NJ, 07073
East Rutherford, NJ
Mar Jam Supply, Inc.
718-388-6465
20 Rewe Street
Brooklyn, NY
Tonys Hardware & Tool Rental
12414 Liberty Ave
S Richmond Hill, NY
The Home Depot
(201)271-1200
1055 Paterson Plank Rd
Secaucus, NJ
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 Elmhurst 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.
- High-Build Coatings Elmhurst NY
- Energy-Efficient Product Reviews Elmhurst NY
- Fiber Reinforced Concrete Elmhurst NY
- Engineered Lumber Elmhurst NY
- Green and Healthy Products Elmhurst NY
- Emergency Tire Repair Products Elmhurst NY