Riprap Seawall Cofferdam Grouting

Originally a riprap seawall, grouting was used to transform it into an impervious cofferdam.Grouting materials included: hot asphalt, SilicaShot-A, durable quick-setting material,(water-repellent material), and so on.
Barrier thickness 4.2m, depth 13–7m, length 770 m.

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