Fibers for Permeability East Syracuse 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.

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Skaneateles Town Square
(315) 685-5748
61 Fennell St, 3 BLOCKS NORTH OF THE VILLAGE
Skaneateles, NY
Village Hardware
(315) 638-4026
43 E Genesee St
Baldwinsville, NY
Lowe's- Clay
315-652-1200
3856 State Route 31 Liverpool, NY, 13090
Liverpool, NY
Wrightway True Value Hardware
(315) 695-2394
9236 Oswego Rd
Baldwinsville, NY
Kmart 3352 / Cross Merch
(315) 652-4494
8007 Oswego Rd
Liverpool, NY
Salt City Hardware
(315) 362-3254
325 Nottingham Rd
Syracuse, NY
Suburban Hardware Inc
(315) 652-7850
7990 Oswego Rd
Liverpool, NY
Fastenal- Syracuse
315-474-0970
920 Spencer Street Syracuse, NY, 13204
Syracuse, NY
Cazenovia Lumber & Oil Co. Inc
315-655-3417
27 William St
Cazenovia, NY
City True Value Hardware
(315) 476-0436
214 S Geddes St
Syracuse, 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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