The study on effective utilization of the construction waste sludge to road material by lime stabilization in cold region

寒冷地区石灰稳定化建筑垃圾污泥有效利用为路材的研究

• 批准号: 13660249
• 负责人: KAMIYA Mitsuhiko
• 金额: $ 2.3万
• 依托单位: Hokkaido Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13660249/
• 关键词: Construction Waste Sludge; Lime Stabilization; Curing Method; Unconfined Compressive Strength; Modulos of Deformation; Water content; Frost Heave Rate; pF; 凍上; 団粒化; コンシステンシー限界; 一軸圧縮強度

The construction waste sludge is one of the waste material in which the proportion of the effective utilization is low even in the inside of waste disposal at construction. Though various application methods are proposed, by that there are small volumes of utilization or expensiveness, it is present state to remain the lower utilization such as embankment materials.In order to utilize as added value material such as the frost blanket of the road, we investigated the characteristics of lime stabilization.Generally used lime stabilization is the method which improves curing by compacting after addition of lime immediately (called the following compaction curing). However, we used the method for compacting in as it is leave and after any days progress, after the lime was mixed (leave curing ). By this method, since to stock the stabilized soil is possible, the processing becomes possible by the stationary type plant, and it is expected that the effective utilization of the construction wa … More ste sludge.Then, in carrying out unconfined compression test and frost heave test of the stabilized soil which changed the curing method, we obtained following result.1) The unconfined compressive strength increases in proportion to the curing days, and increasing proportion in case of addition of lime rate 7% and 7 leave curing days is the most remarkable.2) In the relation between unconfined compressive strength and leave curing days, the difference between the unconfined compressive strength is not observed, when the curing days is short. But as a long of the leave curing days, with the peak 7 leave days seventh change unconfined compressive strength. In the 90th curing, the lowering of the unconfined compressive strength is remarkable.3) The modulos of deformation increases in proportion to the curing days. In the relationship between unconfined compressive strength and modulos of deformation, modulos of deformation is bigger as initial water content is increase, but it is no relation with the leave curing days.4) The frost-heaving quantity decreases with increase of the addition of lime rate and extension of the curing days. The leave curing remarkably appeared on this effect from the compaction curing. This is because it is remarkable the decrease of the capillary force of the leave curing. Less

建筑垃圾污泥是建筑垃圾处理中有效利用比例较低的废弃物之一，虽然提出了多种利用方法，但由于利用率低或成本高，因此其利用率较低。目前路堤材料等利用率仍然较低。为了将其作为道路霜毯等附加值材料利用，我们研究了石灰稳定化的特性。一般采用的石灰稳定化是通过压实后提高养护效果的方法。添加石灰然而，我们使用了在石灰混合后立即压实的方法（称为以下压实养护），因为可以储存稳定土。 ，通过固定式工厂处理成为可能，预计施工污泥的有效利用。随后，在对稳定土进行无侧限压缩试验和冻胀试验，改变了固化土的固化方式。方法，我们得到以下结果。1）无侧限抗压强度随养护天数的增加而增加，其中石灰添加量为7％且养护时间为7天时增加比例最显着。2）无侧限抗压强度与养护天数的关系抗压强度和离开养护天数之间，没有观察到无侧限抗压强度的差异，当养护天数较短时，但随着离开养护天数较长，随无侧限第七个离开天数的峰值变化。在养护第90次时，无侧限抗压强度下降显着。3）变形模量随养护天数的增加而增大。初始含水量有所增加，但与养护天数无关。4）随着石灰添加量的增加和养护时间的延长，冻胀量减少。静养养护的这种效果与压实养护相比显得异常，这是因为静养养护的毛细管力显着降低。

项目成果

峡下仁美, 神谷光彦, 川端伸一郎, 土岐祥介: "石灰安定処理土の混合養生による団粒化と強度特性"技術報告集. No.43. 109-112 (2003)

Hitomi Kyoshita、Mitsuhiko Kamiya、Shinichiro Kawabata、Shosuke Toki：“混合固化石灰稳定土的团聚和强度特性”技术报告集第 109-112 号（2003 年）。

Aggregation and Strength Characteristic by Uncompacted Curing of Lime Stabilized Soil

石灰稳定土免压实养护的团聚及强度特性

• 发表时间: 2003
• 期刊: Proceedings of the Technical Report of the Japanese Geotechnical Society Hokkaido Branch No43
• 作者: KYOSHITA Hitomi;KAMIYA Mitsuhiko;KAWABATA Shinitiro;TOKI Shosuke
• 通讯作者: TOKI Shosuke

北海道の粗粒火山灰土の分類法に関する試案

北海道粗粒火山灰分级方法草案

• 发表时间: 2001
• 期刊: 土と基礎 49-8
• 作者: 池田晃一;神谷光彦;佐藤厚子;斉藤和夫;川端伸一郎
• 通讯作者: 川端伸一郎

川端伸一郎, 神谷光彦, 土岐祥介: "北海道火山灰土の凍上性簡易判定法について"第35回地盤工学研究発表会発表講演集. No.1. 909-910 (2001)

Shinichiro Kawabata、Mitsuhiko Kamiya、Shosuke Toki：“测定北海道火山灰土冻胀特性的简单方法”第 35 届岩土工程研究会议论文集第 1. 909-910 号（2001 年）。

Relation between Various Soil Index and Frost-susceptibility of Volcanic Soils in Hokkaido

北海道火山土各种土壤指数与霜冻敏感性的关系

• 发表时间: 2002
• 期刊: Proceedings of the Symposium on Evaluation Method of Engineering Property of Volcanic Ground
• 作者: KAWABATA Shinitiro;IKEDA Koichi;KAMIYA Mitsuhiko;TOKI Shosuke
• 通讯作者: TOKI Shosuke