• Lecomte, André
• Fares, Hanaa

Abstract

This study is located in a green building approach axed on the eco-materials and innovative construction complexes for building insulation and sustainable development. The shive (a co-product of hemp) may be one of the first used plants for this purpose. To determine the concrete mix with vegetable fibers, three levels of milling were applied to the same shives and these fractions were analyzed in terms of size and packing densities. Two methods are used to characterize the particle size: sieve analysis and image analysis. Grain size analysis by sieving gives only a partial description of the distribution. Image analysis completes the grain size distribution and its parameters (Féret diameter, throbbing, etc.) are useful in optimizing plant skeleton. Packing densities (on individual shive and on a series of mixture) bring new elements to understand the relationship controlling the granular stack of vegetable fibers.

Topics

• impedance spectroscopy
• grain
• grain size
• grinding
• milling