Departmental Bulletin Paper 複合リサイクル材料を添加したセメント安定処理土の強度変形特性とその内部構造
Strength-Deformation Characteristics and Internal Structures of Cement-Stabilized Soils Mixed with Composite Recycled Materials

古川, 芹菜  ,  亀井, 健史

44pp.117 - 123 , 2015-07-31 , 宮崎大学工学部
ISSN:05404924
NCID:AA00732558
Description
This paper describes the development of new ground improvement materials, based on the formation of ettringite, for basanite using waste and recycled materials. For this purpose, recycled basanite was mixed with coal ash, blast furnace slag and furnace cement type-B in different proportions to obtain the optimal production for ettringite based on their chemical responses. The unconfined compressive strength of cement-stabilized soil increases with increasing the suggested composite recycled materials addition ratio. Based on the observation of internal structure using a scanning electron microscope (SEM), ettringite occurrence is related to the strength increase of cement-stabilized soil. Well-developed ettringite could be seen in the case of higher composite recycled materials addition ratios.
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