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A platform for research: civil engineering, architecture and urbanism
Chemical Grouting of Subsidence Loess by Sodium Silicate Solutions with Low Weight Ratio
Construction and exploitation of a buildings at loess foundations is the significant problem for southern regions of Russia and Kazakhstan. There are many methods for loess subsidence removal. The most common of them is preconstruction compaction by pinning. However, when the loess thickness is more than 4-6 meters or an exploiting building foundation improvement is required the chemical grouting by sodium silicate solutions is preferable way. Efficiency of such soil improvement will depend on the chemical composition and structure of loesses. From the author's viewpoint loesses are divided at three groups: the high active loesses, the moderate active ones and the inactive ones. This loess classification is caused by some geochemical criteria. The main ones are: absorption alkali capacity (AAC), gypsum content, water-soluble salts content, pH value and carbonate content.
Chemical Grouting of Subsidence Loess by Sodium Silicate Solutions with Low Weight Ratio
Construction and exploitation of a buildings at loess foundations is the significant problem for southern regions of Russia and Kazakhstan. There are many methods for loess subsidence removal. The most common of them is preconstruction compaction by pinning. However, when the loess thickness is more than 4-6 meters or an exploiting building foundation improvement is required the chemical grouting by sodium silicate solutions is preferable way. Efficiency of such soil improvement will depend on the chemical composition and structure of loesses. From the author's viewpoint loesses are divided at three groups: the high active loesses, the moderate active ones and the inactive ones. This loess classification is caused by some geochemical criteria. The main ones are: absorption alkali capacity (AAC), gypsum content, water-soluble salts content, pH value and carbonate content.
Chemical Grouting of Subsidence Loess by Sodium Silicate Solutions with Low Weight Ratio
Larionova, N. A. (author) / Samarin, E. N. (author) / Voronkevich, S. D. (author) / Abramova, T. T. (author)
Proceedings of the Fourth International Conference on Grouting and Deep Mixing ; 2012 ; New Orleans, Louisiana, United States
Grouting and Deep Mixing 2012 ; 1968-1971
2012-08-17
Conference paper
Electronic Resource
English
Grouting , Highways and roads , Chemical grouting , Anchors , Cement , Cutoffs , Piles , Mixing , Loess , Silicates , Russia (after 1991) , Kazakhstan , Foundations , Land subsidence , Hydraulic structures
Chemical Grouting of Subsidence Loess by Sodium Silicate Solutions with Low Weight Ratio
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