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A platform for research: civil engineering, architecture and urbanism
Identifying an effective binder for the stabilisation of allophanic soils
Allophane is a mineral that consists of alumino-silicate spheres. Soils that contain allophane have been identified as being problematic for the construction of road pavements. When stabilised with lime, allophanic soils gain strength for a limited period of time, but tend to revert to a lower strength over time. The binders that are currently used for the stabilisation of allophanic soil in New Zealand are lime and cement, and while the reverting process is avoided, these binders are not economical. Various potential binders for allophane were identified and put through a testing process that involved several phases, including a field trial and long-term California bearing ratio testing. The long-term testing determined that two binder combinations appear to have the greatest potential for the stabilisation of allophane; these were 'KOBM+cement' and 'fly ash+lime'.
Identifying an effective binder for the stabilisation of allophanic soils
Allophane is a mineral that consists of alumino-silicate spheres. Soils that contain allophane have been identified as being problematic for the construction of road pavements. When stabilised with lime, allophanic soils gain strength for a limited period of time, but tend to revert to a lower strength over time. The binders that are currently used for the stabilisation of allophanic soil in New Zealand are lime and cement, and while the reverting process is avoided, these binders are not economical. Various potential binders for allophane were identified and put through a testing process that involved several phases, including a field trial and long-term California bearing ratio testing. The long-term testing determined that two binder combinations appear to have the greatest potential for the stabilisation of allophane; these were 'KOBM+cement' and 'fly ash+lime'.
Identifying an effective binder for the stabilisation of allophanic soils
Kett, Isaac J. (author) / Ingham, Jason (author) / Evans, John (author)
International Journal of Pavement Engineering ; 11 ; 223-236
2010-06-01
14 pages
Article (Journal)
Electronic Resource
English
allophane , allophanic soils , stabilisation , fly ash , cement , lime
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