Civil Engineering Reference
In-Depth Information
Hempcrete terrace at a housing association development in Diss, in Norfolk, constructed from cast-
in-situ hempcrete around a timber frame.
We have had varying success in convincing structural engineers and building control of-
ficers of hempcrete's properties in this regard, and have often been forced to include at
least some diagonal timber or stainless-steel bracing, despite this being clearly unneces-
sary. Engaging a structural engineer who understands the material and/or an Approved In-
spector (see Chapter 12, page
149
) can be important in helping to make the case.
There is a need for the development of a protocol for testing the structural performance of
hempcrete, to encompass appropriate tests which take into account the fact that hempcrete
is a very different material in its performance from other masonry products. Such a testing
procedure would also need to accommodate different shiv and binder materials, mix ratios
and application techniques within the methodology. This would be a step towards enabling
better comparison between individual studies in future.
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