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Specifications for metallic reinforcement (addressing corrosion) and polymeric reinforcement (addressing creep, degradation, and UV damage). Bs 8006-1 Pdf
: A new annex addressing seismic design for reinforced soil structures. You're looking for information on BS 8006-1 PDF
British Standard Code of Practice for the design and construction of strengthened/reinforced soils and other fills Bs 8006-1 Pdf