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Creep behavior of geosynthetics by temperature accelerated testing

Ползучесть геосинтетических материалов при ускоренных температурных испытаниях
Authors: Srungeri, Sanjeev Gautham; Alekseev, Nikolai; Kovalenko, Ilya; Stolyarov, Oleg;

Creep behavior of geosynthetics by temperature accelerated testing

Abstract

Прогнозирование ползучести геосинтетических материалов является необходимым для определения расчетного срока службы конструкций с их применением. В данной работе были проведены испытания на ползучесть георешеток и геополотен, изготовленных из двух основных типов синтетических полимеров - полиэфира и полипропилена, используемых при производстве геосинтетических материалов. Прогнозируемые кривые были получены с помощью метода ступенчатых изотерм. При кратковременных измерениях деформация ползучести ускорялась при помощи увеличения температуры равными шагами. Проведено сравнение прогнозируемой деформации ползучести исследуемых образцов геосинтетических материалов на период до 30 лет. Образцы геосинтетических материалов из полиэфира показали лучшую устойчивость к деформации ползучести по сравнению с образцами, изготовленными из полипропилена. При практическом применении геосинтетические материалы из полиэфира являются предпочтительными при использовании в функции армирования.

Predicting the creep behaviour of geosynthetics is very important for determining the design life of geosynthetic based structures. In this paper, geogrids and geotextiles made of two major types of synthetic polymer namely, polyester and polypropylene were investigated for accelerated creep test. In short-term measurements, creep was accelerated by temperature in equal steps. As a result of the analysis, predicted creep curves for up to 30 years of design life were obtained by the stepped isothermal method. The predicted creep deformation for a period of 30 years has been analyzed. The geogrid samples made of polyester showed better creep resistance compared to polypropylene geogrids. Geosynthetic materials made of polyester are more suitable for various loaded applications as a reinforcement function.

Related Organizations
Keywords

step isothermal method, геосинтетические материалы, прогнозирование, вязкоупругие свойства, метод ступенчатых изотерм, viscoelastic properties, ползучесть, prediction, geosynthetics, creep

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
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