G - Physics – 01 – N
Patent
G - Physics
01
N
73/117
G01N 15/08 (2006.01) G01M 3/04 (2006.01) G01M 3/12 (2006.01) G01M 3/26 (2006.01) G01N 33/24 (2006.01)
Patent
CA 2003659
ABSTRACT An apparatus for tasting the relative permeability of materials, particularly concrete structures, comprises a transparent, optically non-distorting head having a gasket, which together with the head defines a head chamber, and which allows the head to be sealed against the structure when a partial vacuum is induced in the head chamber. The decay of the vacuum may be measured, and the rate of decay provides an index of permeability, A liquid may be applied to the surface being tested and will foam to allow identification of cracks and fissures. In an alternative embodiment, a fluid is introduced into a secondary chamber defined by a secondary gasket and the head, and the rate of permeation of the fluid into the structure provides a measure of permeability. The vacuum mounted test apparatus allows in-situ testing without requiring the extraction of sample cores from the structure or making invasive attachments to the structure, thus providing a quality control apparatus and method for rapid testing of construction materials.
Schupack Daniel
Schupack Morris
Perley-Robertson Hill & Mcdougall Llp
Schupack Daniel
Schupack Morris
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