Fibers for Permeability Floral Park 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

Suburban Mills
631-351-6445
16 Railroad St
Huntington Station, NY
Fastenal- Brooklyn
718-609-9435
190 West St. Section 1B Brooklyn, NY, 11222
Brooklyn, NY
CLEARVIEW PAINT & DECOR
(718) 747-5000
20-11 Francis Lewis Blvd
Whitestone, NY
The Home Depot
(201)963-6513
180 Twelfth Street
Jersey City, NJ
Empire Tools, LLC
914-937-1773
21 Abendroth Avenue Port Chester, NY, 10573
Port Chester, NY
Monster Woodshop
888-506-6678
607 18th Street
Brooklyn, NY
Mitchell Simon Co Inc
(201) 568-2108
15 S Dean St
Englewood, NJ
Ace Hardware of Rockville Centre
(516) 568-2301
315 Sunrise Hwy, between Morris and N.Park
Rockville Centre, NY
Corner Hardware & Paint
(718) 377-8516
2266 Nostrand Ave
Brooklyn, NY
The Home Depot
(718)827-9568
579 Gateway Drive
Brooklyn, 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