The Effect of Antifreeze Reagent on Seasonal Frozen Soils
Zhussupbekov A.Z. Montayeva A.S. Montayev S.A.
2021International University of Sarajevo
Periodicals of Engineering and Natural Sciences
2021#9Issue 3245 - 259 pp.
The design, construction, and maintenance of pile foundations are dependent on special weather conditions in Northern and Central part of Kazakhstan. The winter months in these areas are very long which starts from November to March and the air temperature usually reaches – 40-50°C. These circumstances lead to the seasonal freezing ground, special physical behavior of soil, physical properties of construction materials. The main problem of pile driving in winter is frozen ground which is difficult to excavate and driving. Moreover, the Static Load Tests for estimating the bearing capacity of pile foundations do not show accurate records in frozen soil. To solve the problems mentioned above, a special antifreeze composition has been developed and established its protective effect against soil freezing in winter. The implementation of the proposed method leads to a high productivity of driving reinforced concrete piles without the risk of their destruction. This eliminates the need for additional drilling works and more powerful and expensive rock drills, if the soil is protected from freezing. According to a special formula, the optimal mass of antifreeze is calculated, which allows protecting the soil without harming not only the soil, but also the structure of the concrete pile and the environment. During the static load test, piles driven into soil that had been covered with antifreeze has showed more accurate bearing capacity data. Scientific and experimental studies have established that antifreeze reduces the compressibility of frozen soil.
Pile foundations , Risk of destruction , Temperature influence , Thawing effect , Weather conditions
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Department of Design of Buildings and Structures, L.N. Gumilyov Eurasian National University, Kazakhstan
Department of Construction and Building Materials, Zhangir Khan West Kazakhstan Agrarian-Technical University, Kazakhstan
Department of Design of Buildings and Structures
Department of Construction and Building Materials
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