The Use of Polyurethane Grouts and Grout Tubesby Bert Kriekemans, De Neef America Inc, St. Louis, MI, USA,
Abstract: Most polyurethane grouts used for seepage control are one-component, and water activated. They are prepolymers of a polyisocyanate with a polyol. Some of the polyurethane grouts use an accelerator to regulate their geltime. When they come in contact with water, they react, foam and solidify. There are hydrophobic and hydrophilic water activated polyurethane grouts.
Subject Headings: Grouting | Polyurethane | Water management | Seepage | Solidification | Concrete dams
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