Reuse-aimed treatment of high water-content clay with fine shredded paper:

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  • 再利用を目的とした古紙微細粉体による高含水泥土処理
  • Mechanical characteristics in cement addition
  • ―セメント添加時の各種力学特性―

Abstract

<p>The author’s research group has proposed a new improvement method for waste sludge and dredged sediment in construction sites using fine paper made from used paper (hereafter referred to as fine shredded paper: FSP). Previous studies have proved that the addition of fine shredded paper (FSP) improves the transportability of the high-water content clay due to increase of the strength of the treated clay. However, the FSP treated clay is insufficient for proper use as a geomaterial when the original clay has an extremely high moisture content. In this study, we investigated the mechanical properties of the FSP mixed treated clay with cement by uniaxial compression tests in order to examine the applicability as a geomaterial. The results indicated that the combination of FSP and cement is likely to reduce the difference in stiffness between FSP-cement treated clay and surrounding ground, which is a concern in the case of cement stabilization. The FSP mixed treated clay with cement will be more compatible in stiffness with the surrounding ground. This mechanical characteristic may derive from the water absorption and reinforcement effects of the FSP fibers.</p>

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