| 摘要 |
<p>A concrete fluid structure deteriorated to the condition of removal of substance of the concrete by sulfuric acids and like corrosive material in contact therewith is restored by a substratum (28) of epoxy foam, polyurethane foam, or a combination thereof having a relatively thin layer (34) of polyvinyl chloride or polyethylene bonded to the outward facing surface (32) of the foam and bonding the layer to the structure. A method for forming the substratum in the location of the deteriorated structure is described.</p> |
