Посмотр Выпуск 2021, №2 (135) по названию

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    • A unified approach for temperature and strength control of concrete 

      Aniskin, A.; Tulebekova, A. (L.N.Gumilyov Eurasian National University, 2021)
      The development of theoretical and experimental research in the field of quality control has led to the development of many methods for assessing the strength of concrete. The temperature-strength control (TSCC) method, which is based on the relationship between concrete temperature and curing time, is the most adapted method for quickly determining the strength of the concrete ...
      2023-06-02

    • Comparison of the results of pH measurements in a buffer solution 

      Baikhozhayeva, B.U.; Zhumagali, A.K.; Moldakhmetova, A.E. (L.N.Gumilyov Eurasian National University, 2021)
      As a result of the increasing need to study the choice of the assigned value during the inter-laboratory comparisons is becoming more and more relevant. Since the assigned value is a reference point when comparing the results of the participants of the qualification test. Frequently, qualification verification providers face a number of problems when choosing the assigned ...
      2023-06-02

    • Evaluation of frost heave in clay soils 

      Sarsembayeva, А.; Zhusshupbekov, A.; Collins, Ph.E.F. (L.N.Gumilyov Eurasian National University, 2021)
      Frost heaving in clayey soils with a low coefficient of permeability raises a lot of questions regarding the cryosuction, surface tension forces, and accompanying phase transfer of water. The freeze-thaw laboratory test results were considered in this work in terms of temperature and volumetric parameters change, dry density, and water mass transfer. The article presents a ...
      2023-06-02

    • Numerical analysis of pile foundations in seasonally freezing soil ground 

      Tleulenova, G.; Zhussupbekov, A.; Shakhmov, Zh.; Omarov, A. (L.N.Gumilyov Eurasian National University, 2021)
      The article presents the results of numerical analysis for pile foundation in seasonally freezing soil ground. This project uses the static tests of soil by piles at the construction site of Cargo off-loading facilities (Prorva, Atyrau region, Kazakhstan). The project area is located along the east coast of the Caspian Sea, both onshore and offshore, near the Prorva oilfield, ...
      2023-06-02

    • Research of heating the lining of high-temperature units in order to increase their residual resource 

      Nikiforov, A.S.; Karmanov, A.E.; Prikhod’ko, E.V.; Kinzhibekova, A.K.; Zhumagulov, M.G. (L.N.Gumilyov Eurasian National University, 2021)
      The article contains an analysis of the initial stage of the heating process of hightemperature units. The heating modes used at the enterprises lead to various difficulties: a delay in the heating process or heating at a high speed at which mechanical stresses arise and exceed the permissible values. The proposed graphical dependencies for heating allow us to heat up at the ...
      2023-06-02