Optimisation of Operational Parameters for Nonwoven Sheaths of Water Absorbing Geocomposites in Unsaturated Soil Conditions
Journal Title: Fibres and Textiles in Eastern Europe - Year 2016, Vol 24, Issue 3
Abstract
This study analyses tests influencing the selection of nonwovens for water absorbing geocomposites. The task of the nonwoven is to capture water infiltrating into the soil and to direct it to the superabsorbent located inside. The best results in the tests of water permeability (88 mm/s) and water absorption (1116.85 g/m2) were obtained for nonwoven of the lowest surface weight - 112.8 g/m2 and the largest average pore diameter - 206.5 μm. The lowest water absorption capacity (478.91 g/m2) and the smallest thickness changes under a load (19.3%) was noted in needle-punched nonwoven that had been subject to the calandering process. For one nonwoven, the presence of other significant fractions was noted, which proves that it is heterogeneous. For nonwovens applied in the unsaturated zone, not only water permeability should be taken into account, but also the size and fraction distribution of pores, in order to avoid breaking the continuity of capillaries.
Authors and Affiliations
Krzysztof Lejcuś, Jolanta Dąbrowska, Joanna Grzybowska-Pietras, Daniel Garlikowski, Iwona Lejcuś, Andrzej Pawłowski, Michał Śpitalniak
Keywords
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- EP ID EP101349
- DOI 10.5604/12303666.1196620
- Views 116
- Downloads 0
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