Chemical Composition of Natural Fibers Using the Measured True Density. Case Study: Ichu Fibers

Use of giant reed (Arundo donax L.) for polymer composites obtaining: a mapping review

“…Most studies have been performed with a mechanical procedure and show higher lignin content (17-24%) than those fibers obtained by combining a chemical and mechanical process (5.3%). Only some authors have calculated the density of the fibers, obtaining higher values for those fibers with higher cellulose content; other authors have also found a positive correlation between the cellulose content of a fiber and its density (Charca et al 2021;Suárez et al 2022a). Reed fibers obtained by simple mechanical procedures show about 35-45% cellulose, while those obtained by combining chemical and mechanical operations have an increased cellulose content, almost reaching 70%.…”

Durability of eco-efficient binary cement mortars based on ichu ash: Effect on carbonation and chloride resistance

“…Ichu grass is a monocot plant, of the order Poales and the family Poaceae, composed mainly of lignin, cellulose and hemicellulose [32,33]. It grows abundantly, without requiring cultivation, in the high Andean region.…”

“…To reduce these risks and to benefit from this resource, alternative uses are being explored. Some proposed applications include the use of the grass as fibres for the production of biocomposites or of its ashes as SCM [32,[34][35][36]. The latter case would involve calcination of the grass, which would be all the more interesting as the high volumes of ichu grown naturally, with low production costs, make it a good candidate for its exploitation for energy production.…”