繊維質固化処理土の乾湿繰り返し試験による耐久性に関する実験的研究

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In order to utilize the fiber-cement-stabilized mud as landfill materials, it is very important to know the durability of the soils. Therefore, repeated cycle tests of drying and wetting were carried out by using the cement-stabilized mud and the fiber-cement-stabilized mud, and the durability of the modified soils was experimentally investigated. It was confirmed that the cement-stabilized mud deteriorated with increasing the cycle number. This result was not inconsistent with the results obtained by the previous researches. On the other hands, it was confirmed that the fiber- cement-stabilized mud did not deteriorate even if the cycle number increased. In order to explore the reason why the fiber-cement-stabilized mud shows high durability, the observation of the inside and the surface of specimens was carried out by using the microscope. Furthermore, the unconfined compression tests were carried out and failure strains were measured for both the cement-stabilized mud and the fiber-cement-stabilized mud. It was found from the unconfined compression tests that the failure strains of fiber-cement-stabilized mud were much larger than those of cement-stabilized mud. Therefore, it was confirmed that the reason why the fiber-cement-stabilized mud did not deteriorate was that the fiber-cement-stabilized mud forms the complicated structure which the soil particles and fiber are intertwined, and this complicated structure strengthens the combined force between soil particles and restrains the deterioration of the modified soils.
社団法人資源・素材学会の論文
2005-03-25

繊維質固化処理土の乾湿繰り返し試験による耐久性に関する実験的研究

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