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Technical & Practical |
INTRODUCTION TO WALLS
Construction
Shuttered, cast and tamped
In general shuttered and cast/tamped walls
are suitable for self build or smaller projects
(less than 70 cubic metres), or where cheap or
volunteer labour is available. In this instance
temporary shuttering is fi xed to the timber
frame with tubular spacers to form the fi nished
size and shape of the walls. The Tradical®
Hemcrete® is mixed in the proportion of 1 bale
of hemp shiv (Tradical® HF) to 2 bags of binder
(Tradical® HB) with approx 60 litres of water
per bale of hemp. This material is then tipped
into the shuttering and lightly tamped into
place. After 12 to 24 hours the shuttering can
be removed.
Spray applied
In general spray applied Tradical® Hemcrete®
is suitable for larger projects (over 70 cubic
metres) where fast-track construction is
required. The Tradical® Hemcrete® is mixed
dry in the proportion of 1 bale of hemp shiv
(Tradical® HF) to 2 bags of binder (Tradical®
HB), the water is added close to the nozzle
of the spray system. This material is then
sprayed against temporary or permanent,
single sided shuttering and fl attened to the
required surface. After 24 hours any temporary
shuttering can be removed.
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