Abstract :
[en] In this paper, Miscanthus fibres are used to develop
lightweight concrete. The amount of Miscanthus and cement, as well as the
water/cement ratio, are varied to analyse the behaviour of the mixture
concerning the physical and mechanical properties. The Miscanthus was
pre-treated with a silicate sealant or a cement-based fluid. The current
paper analyses the impact of the pre-treatment of the Miscanthus fibres
on the compressive strength as well as on the long-term deformations. The
specimens with a pre-treatment based on a silicate sealant reached a
compressive strength of 19.3 MPa, which is higher than the compressive
strength of a conventional LC 16/18, a Young's Modulus above 9.9 GPa and
a shrinkage deformation of 2244 μm/m. Nevertheless, considering the
density the pre-treatment showed not to be beneficial.
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