水産系副産物(貝殻)のキャピラリーバリアへの有効活用に関する基礎的研究 : 破砕した貝殻の保水性について(<特集>資源の有効活用)

概要

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The capillary barrier is a natural soil layer composed of a sandy layer and an underlying gravel layer. Shells, a kind of fishery byproduct, are classified as industrial waste by laws concerning waste disposal and cleaning. Therfore, waste disposal companies need to dispose of shells by themselves. Many shells are, however, piled outdoors near the fishing port because any method has not yet been established for disposing of or using shells. This study aimed at making effective use of shells, which are composed mainly of calcium carbonate (CaCO_3) and chemically and physically stable, for capillary barriers as alternative earth materials substituting gravels. Water retention of crushed shells was tested while no attention had been paid to crushed shells. Then, the effects of the size of crushed shell were examined to identify their applicability.
2011-07-01