Waterstop for monolith joints
AssigneeGelco Grouting Service
InventorStephen T. Waring
Life of this patent
Estimating the term…
Abstract
A tubular member is arranged to be inserted in a hole drilled in adjacent monoliths astraddle a joint between the monoliths. A tubular member comprises an outer layer of material saturated with a resin capable of bonding to defining walls of the hole. An inner layer of fluid impermeable material is bonded to the outer layer of tubular member. Prior to installation, the tubular member is non-inverted, having the resin saturated layer on the inside whereby upon being inverted into the hole by an inverting gas or fluid, the resin saturated layer turns outwardly for bonding to the walls of the hole. A core portion is placed in the tube to hold it in tight bonded engagement with the hole, such core portion comprising a grout having an elasticity which when cured flexes with differential movements of adjacent monoliths.
Claims12
A waterstop for sealing a vertical joint between monoliths comprising
- a tubular member arranged to be inserted in a hole provided in adjacent monoliths astraddle a joint therebetween,
- said tubular member comprising an outer layer of material saturated with a resin capable of bonding to defining walls in the hole,
- an inner layer of fluid impermeable material bonded to said outer layer,
- and a permanent core portion filling the interior of said tube to maintain the tubular member in tight bonded engagement with the defining walls of the hole against head pressure of water behind said monoliths.
The method of forming a waterstop in a vertical hole cut in adjacent monoliths astraddle a joint therebetween comprising the steps of
- lining the hole with a tubular member having a first layer saturated with a water reactive resin for bonding to defining walls of the hole and a second layer of fluid impermeable material bonded to said first layer,
- and inserting a permanent core portion of grout interiorly of said tubular member of a type having an elasticity when cured to flex with differential movements of adjacent monoliths and a density to hold said tubular member in tight bonded engagement with defining walls of the hole and to withstand head pressure of water behind said monoliths.
Dependencies are inferred from the claim text.