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Sprayed concrete mix…

Sprayed concrete mix…
with a compressive strength of 40MPa:
Material Volume
Cement 540kg/m3
Natural aggregates from river, dmax= 8mm 1467kg/m3
Silica 60kg/m3
Steel fibre 60kg//m3
Additives:  
Pozzolith 322R 3 litre/m3
Reobuild 1000R 6 litre/m3
Water 280 litre/m3
w/c ratio 0.52
Accelerator – Sodium Aluminate Approximately 25%