The use of the ceramic by-product "Kira" improved by crushing and mixing with diffusion as a geomaterial

本研究的目的是通过试验和数值模拟来了解ICIER和造纸污泥灰改良土的力学特性。（1）陶瓷副产品“IURA”及其石灰改良土力学行为的弹塑性解释RDA的力学行为类似于中密砂，ICIItA在弹塑性参数和土骨架结构退化方面表现为介于砂和粘土之间的土。(2)造纸污泥改良土力学行为的弹塑性解释1）以27%（P527）的PS灰改良的ICIER，其含水量最佳，无侧限抗压强度大于200 kPa，是改良前KIRA的8倍，改良后的土仍具有较高的持水性，介于砂和粘土之间。2)用PS粉煤灰代替水泥的新型路面材料仍具有28天强度2000 kPa以上，并具有一定的保水能力。（3）通过对PS27土结构性的计算，发现PS27土为严重超固结、结构性强的土，结构性衰减缓慢，超固结损失缓慢。(3)新型保水性透水性路面材料的开发通过将KIRA与PS-灰、水泥和骨料混合，开发出一种新型路面材料。通过无侧限抗压强度试验，其强度均大于PS27。在峰值强度下轴向应变约为1%，这意味着该行为表现为脆性。其保水性高于典型砂。这些材料能够提供保水性和可渗透的路面材料

The objective of this study is to comprehend the mechanical behavior of 'ICIER and the soil improved by paper sludge ash(PS-ash)through the experiment and the computation using SYS Cam-clay model The new findings are as follows ;(1) Elasto-plastic interpretation of mechanical behavior of 'IURA,' a ceramic by-product and its soil improved with lime The behavior of RDA is similar to the one of medium dense sand, and 'ICIItA behaves as the'soil between sand and clay in elasto-plastic parameters and the degradation of the soil skeleton structure.(2) Elasto-plastic interpretation of mechanical behavior of the soil improved with PS (Paper sludge) ?ash 1)The 'ICIER improved by PS ash of 27% (P527),of which water content is optimum, has unconfined compression strength of more than 200 kPa, that is 8 times unimproved 'KIRA' The improved soil still has high water retention between sand and clay. 2)The new pavement material using PS-ash instead of cement still has 28-day strength of more than 2000 kPa and has water retention capacity to a certain extent. 3)PS27 behaves as heavily overconsolidated and highly structured soil with slow structure decay and slow overconsolidation loss through the computation using SYS Cam-clay model.(3) Creation of a new water-retentive and permeable pavement material A new pavement material was created by mixing KIRA with PS-ash, cement and aggregate. Through unconfined compression test, the strength is larger than the one of PS27. The axial strain is about 1 % at the peak strength, which implies that the behavior shows brittle. The water retention is higher than the one of typical sand. These materials are able to provide a water-retentive and permeable pavement material