Asphalt penetration indicator

Details Asphalt penetration indicator Asphalt penetration indicator

1978-08-09

1979-08-14

Yasich, Daniel M.

Measuring and testing

With fluid pressure

Porosity or permeability

G01N 1508

Patent

active

041641396

ABSTRACT:
Water penetration of bituminous pavement is measured by a conduit comprising a cylindrical tube having a flat outwardly extending lower flange and a closed top having a circular center opening into which is engaged an upwardly extending graduated cylinder open at both ends having a diameter significantly smaller than the cylindrical tube. The flat lower rim is adapted to hold a sealant on its lower surface and a weight having a central opening fitted around the cylindrical tube on its upper surface. The weight causes the sealant to seal the apparatus to the pavement in a fluid tight relationship and when the apparatus is filled with water the degree of water penetration into the pavement can be determined by the change of water volume in the graduated cylinder.

REFERENCES:
patent: 2310111 (1943-02-01), Nordlander
patent: 3371519 (1968-03-01), Slone et al.
patent: 3548635 (1970-12-01), Hutchinson et al.
patent: 3861196 (1975-01-01), Domenighetti
patent: 4070903 (1978-01-01), Lees et al.

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