E - Fixed Constructions – 01 – C
Patent
E - Fixed Constructions
01
C
94/18
E01C 11/10 (2006.01) E01D 19/06 (2006.01)
Patent
CA 1075945
ABSTRACT OF THE DISCLOSURE An elastic joint-spanning waterstop of particular design for use in a method of sealing joints, in particular expansion joints between con- crete sections in roads, bridge and parking deck structures against passage of water, dirt, etc., is described. In the method, recesses are formed in the concrete surface of each side of the joint and the specially designed flexible elastic joint-spanning waterstop element is placed therein, and thereafter a layer of rigid-setting grout is then placed over the element. The waterstop element is in the form of a continuous strip having in cross- section a center portion for location in the joint, and lateral joint-span- ning web portions. The webs have a number of openings therethrough to admit fluid grout therein. An upstanding rib is placed between the openings and the center section and is spaced therefrom. The openings in the webs when filled with grout serve to support the upper layer of grout and to prevent flexing and cracking thereof by vehicle traffic passing thereover, as well as to anchor the webs to the concrete bodies. The upstanding rib is embedded in grout and acts to seal against passage of any water from the joint through the openings when the joint is in an expanded position and the waterstop is stretched.
304600
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