Process for making expansion joint material

Details Process for making expansion joint material Process for making expansion joint material

D - Textiles, Paper

21

H

D21H 17/61 (2006.01) H02K 1/06 (2006.01) D21H 17/71 (1995.01)

Patent

CA 2146402

A process of producing an asphalt-impregnated fiberboard comprises the steps of forming an aqueous slurry of a fibrous material, asphalt and rubber, mixing the slurry to uniformly distribute its components, dewatering the slurry to form a wet mat, pressing the wet mat to consolidate it, and drying the consolidated wet mat. Fiberboards made by the process can be employed as durable resilient expansion joints between various types of structural members.

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