Polymer concrete by percolation

A method for the repair of a roadway having a cavity therein, comprises: filling the cavity with an aggregate; forming a solution comprising from 0 to 8% of an OH terminated polyether polyol having a molecular weight of less than 2,000, from 23 to 35% of an organic polyisocyanate, from 38 to 58% of...

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Bibliographische Detailangaben
1. Verfasser: RANSOME J WYMAN
Format: Patent
Sprache:eng
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Zusammenfassung:A method for the repair of a roadway having a cavity therein, comprises: filling the cavity with an aggregate; forming a solution comprising from 0 to 8% of an OH terminated polyether polyol having a molecular weight of less than 2,000, from 23 to 35% of an organic polyisocyanate, from 38 to 58% of a solvent having a specific gravity of greater than 1, from 8 to 15% of a diaminotetrahydroxyl polyol, from 0.15 to 0.3% of an organic mercury catalyst and from 0 to 1% of an organic lead catalyst; and dispersing the solution through the aggregate and allowing the solution to percolate therethrough to fill the cavity.