Fibers for Permeability North Babylon 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

Roberts Plywood Co.
800-422-4944
45 North Industry Court
Deer Park, NY
Costello's Ace Hardware
(516) 798-5757
5135 Merrick Rd, Gino's
Massapequa Park, NY
Ferreteria Amador
(787) 898-4060
Buzon 94 Carretera 2 Km 88.3
Hatillo, NY
The Home Depot
(516)565-3700
172 Fulton Ave
Hempstead, NY
Huntington Sq Mall
(631) 462-2100
4000 Jericho Tpke
E Northport, NY
EXOTIC WOODS USA
(631) 651-8651
698 Fort Salonga Rd
Northport, NY
Suburban Mills
631-351-6445
16 Railroad St
Huntington Station, NY
Lowe's of Bay Shore
631-954-9001
800 Sunrise Highway Bayshore, NY, 11706
Bayshore, NY
The Home Depot
(631)242-0215
475 Commack Road
Deer Park, NY
The Home Depot
(516)364-4677
111 Jericho Turnpike
Syosset, 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