Soil recycling technology Bontelan method
A method for recycling pond bottom sediment and embankment excavation soil into high-performance ground materials.
<Overview of the Technology> The Bontelan method is a technology that repurposes bottom sediment accumulated in agricultural ponds or excavation soil from embankments, which are traditionally deemed unsuitable for use as fill, into high-performance ground materials for the renovation and reinforcement of embankments. <Purpose and Objectives of Development> Renovation of agricultural pond embankments requires high-quality soil with excellent strength and impermeability; however, it has become difficult to obtain such soil around these ponds. On the other hand, these ponds often have thick layers of bottom sediment, which contribute to a reduction in water storage capacity and deterioration of water quality, thereby hindering or degrading the functionality of the ponds. Bottom sediment typically contains a high proportion of clay and silt, and due to its generally high water content, it is not easy to dispose of. Therefore, there has been a demand for technology that actively repurposes this sediment into ground materials from environmental and economic perspectives. In response, we developed the Bontelan method by mixing fiber-based soil improvement materials called "Bonfiber" and solidifying agents into the bottom sediment of agricultural ponds, thereby adding functions such as excellent strength characteristics, high seismic resistance, and high durability. There was no earthquake damage to all embankment fill and pond embankment soil constructed using this method prior to the earthquake, and it was selected as one of six technologies recognized for their effectiveness during the Great East Japan Earthquake from a total of 165 submissions at the 2011 Construction Technology Forum.
- Company：森環境技術研究所
- Price：Other
