Fibers for Permeability New Hartford 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 of New Hartford
315-351-4242
4699 Middle Settlement Road New Hartford, NY, 13413
New Hartford, NY
Cavo Builders Supplies
315-724-5970
1027 Jefferson Ave
Utica, NY
F.p.morgan True Value Hdw.
(315) 841-4103
108 Main St
Waterville, NY
Sangertown Sq
(315) 793-3900
Rt 5 & 5A
New Hartford, NY
Kmart 9542 / Cross Merch
(315) 866-4910
200 S Washington St
Herkimer, NY
Lowe's
(315) 709-3000
1230 Erie Blvd. West
Rome, NY
Ilion Lumber Company Inc
315-895-7437
161 West Main
Ilion, NY
Collis True Value Hardware
(315) 866-0826
104 N Main St
Herkimer, NY
Kmart 4362 / Cross Merch
(315) 736-0876
4645 Commercial Dr
New Hartford, NY
Herkimer - Auth Hometown
(315) 866-0154
325 E Albany St
Herkimer, 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

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