Methods for the Determination of Water Permeability of Concrete

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Title: Methods for the Determination of Water Permeability of Concrete

Author(s): R. P. Khatri and V. Sirivivatnanon

Publication: Materials Journal

Volume: 94

Issue: 3

Appears on pages(s): 257-261

Keywords: coefficient of permeability; concretes; constant flow method; depth of penetration method; water permeability;

DOI: 10.14359/307

Date: 5/1/1997

Abstract:
Two test methods have been successfully used to determine the water permeability of different concretes. The methods are based on the determination of coefficient of permeability using either a constant flow or a depth of penetration technique. The flow method has generally been found to suit concretes with higher permeability, while the penetration method is used for concretes with very low permeability. Presently no clear guidelines exist for the selection of the appropriate method for a particular type of concrete. This study was carried out to examine the correlation between the two methods. A broad guideline has also been established for the selection of the appropriate method for a particular concrete with respect to its binder composition, 28-day compressive strength, and age. The concretes examined were prepared from five types of binders and with a grade range of 35 to 50 MPa. From the May-June 1997 issue


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