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 (table 1).Grouting and Deep Mixing 2012 Downloaded from ascelibrary.org by New York University on 08/02/15.

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New Regio-Selective Method of Combinatorial Synthesis of Substituted Thiophenes, Thieno[3,2-b]pyridines and Other Heterocycles via Combination of 'Domino'-Type Reactions. -(ZUBAREV, A. A.; SHESTOPALOV*, A. M.; LARIONOVA, N. A.; RODINOVSKAYA, L. A.; SHESTOPALOV, A. A.; Tetrahedron 69 (2013) 46, 9648-9655, http://dx.

S)-Threonine/α,α-(S)-Diphenylvalinol-Derived Chiral Ionic Liquid: An Immobilized Organocatalyst for Asymmetric syn-Aldol Reactions. -The syn-alcohols (III) are obtained in high yield, diastereoselectivity, and enantioselectivity. The catalyst can be recycled over 3 reaction cycles. -(LARIONOVA, N. A.; KUCHERENKO, A. S.; SIYUTKIN, D. E.; ZLOTIN*, S. G.; Tetrahedron 67 (2011) 10, 1948-1954, http://dx.