Slab protocol

1. Thermal and moisture break 1″ to 4″ pre-crushed fibre cement chips
2. Broadcast 1/4″ “dust” of portland cement.
3. Water lightly until wetted.
4. Cure overnight
5. set forms including footing and rebar.
6. Lay breathable landscape filter cloth
7. Pour concrete 60-70% hempcrete and 30-40% concrete by volume.
8. Subsoil drain
9. Vent tubes filled with crushed hempcrete

hempcrete: NaOH + 30% GBFS + 70% hurd
concrete: NaOH + 30% GBFS + 70% sand
NaOH: 5-10% NaOH solution


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