In March 2021, ASTM International published ASTM D8364/D8364M-21: ‘Standard Specification for Geosynthetic Cementitious Composite Mat (GCCM) Materials’. This standard is the only internationally recognized standard for specifying GCCMs and lists typical GCCM erosion control and weed suppression applications by three Classification Types: Type I, Type II and Type III. ASTM product specifications make specifying the right product easier for the designer while ensuring they meet minimum performance requirements, helping to prevent project failure.

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