Concrete keyed joints

Details Concrete keyed joints Concrete keyed joints

1990-10-05

1991-10-01

Britts, Ramon S.

Road structure, process, or apparatus

Pavement

Including joint means

404 48, E01C 2309

Patent

active

050528521

ABSTRACT:
A concrete keyed joint is formed using a joint plate which has coplanar top and bottom sections interconnected to a parallel rearwardly spaced central section by rearwardly convergent upper and lower inclined sections and spaced pair of holes in the inclined section. Pegs or stakes support the joint plate vertically and are locked by wedges which allow vertical adjustment of the joint plate and then lock it in position. A resilient filler strip is fitted to the top of the plate to accommodate thermal expansion and contraction of the concrete slabs separated by the joint plate.

REFERENCES:
patent: 1629756 (1927-05-01), White
patent: 1639764 (1927-08-01), Fischer
patent: 1666613 (1928-04-01), Woods
patent: 1770168 (1930-07-01), Fischer
patent: 1819304 (1931-08-01), Robertson
patent: 1978278 (1934-10-01), O'Brien
patent: 2189437 (1940-02-01), Sandell
patent: 2222970 (1940-11-01), Malcolm
patent: 2535135 (1950-12-01), Jacobsen
patent: 2798373 (1957-07-01), Harza
patent: 2976781 (1961-03-01), Heltzel
patent: 3057269 (1962-10-01), Artigalas et al.
patent: 3276335 (1966-10-01), Middlestadt
patent: 3782846 (1974-01-01), Johnson
patent: 4194282 (1980-03-01), Byrd, Jr.

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