فهرس المقالات Swelling potential

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  1 - Laboratory study to measure the swelling potential of fine-grained clay soils: A case study for Malekan city
  Mehrdad Amiri Parisa Khosravi Dariush Ahadi Ravoshti
  Swelling potential is one of the most important effect of fine-grained clay soils which causes damage to the soil texture and structures built with/or on it. The ability to absorb water and swelling in clay soils is directly related to the clay types and properties wher أکثر

  Swelling potential is one of the most important effect of fine-grained clay soils which causes damage to the soil texture and structures built with/or on it. The ability to absorb water and swelling in clay soils is directly related to the clay types and properties where this increases with increasing clay complexity. Presented article attempted to provide the empirical relation between physicochemical properties of the clayey soils and swelling potential of Malekan city’s soils. For this purpose, a laboratory tests series including physical properties, XRD, chemical ratio, atterberg limits and fine-grained particles and hydrometery analysis was conducted on 25 clayey soils samples. The tests results are classified by United States Department of Agriculture (USDA) systems and swelling activity charts to provide the clay minerals activities in Malekan. According to the results, the swelling potential of clays is medium to high and very high which must be considered as high risk for soil inflation. تفاصيل المقالة
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  2 - Assessment of the clay mineralogy effect on Ajabshir soils’ physicochemical characteristics and swelling phenomenon
  Maryam Golnezhad Dariush Ahadi Ravoshti
  Clayey minerals are considered as the most important factor causing soils swelling, especially fine-grained soils. This phenomenon also causes the destruction of soil structure and texture and in the water vicinity makes damage to surrounding structures. Therefore, iden أکثر

  Clayey minerals are considered as the most important factor causing soils swelling, especially fine-grained soils. This phenomenon also causes the destruction of soil structure and texture and in the water vicinity makes damage to surrounding structures. Therefore, identifying and improving the condition of such soils can be very useful. For this purpose, standard laboratory methods have been proposed to evaluate the swelling potential of clayey soils. In this study attempted to use these laboratory methods to evaluate the clayey soils’ physicochemical characteristics and swelling potential form Ajabshir, East-azerbaijan province, NW of Iran. In this regard, the field survey, sampling and laboratory tests (such as physical, chemical and mechanical) conducted on 30 specimens were taken in Ajabshir. The soils samples are classified by United States Department of Agriculture (USDA) classification to identify the clay minerals classes for Ajabshir’s soil. Also, the indirect swelling potential evaluation was applied for providing the swellability condition of the studied soils. تفاصيل المقالة
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  3 - Investigation of the swelling aspect from Marageh city’s clayey soil based on mineralogy effects and physicochemical properties
  Dariush Ahadi Ravoshti Maryam Golnezhad
  10.30495/geotech.2020.679339
  The swelling potential is the most important factor on engineering and agricultural design of foundations on fine-grained soils which it can be cause expansion problems for these structures. So, providing the suitable views of swelling condition can help to solid design أکثر

  The swelling potential is the most important factor on engineering and agricultural design of foundations on fine-grained soils which it can be cause expansion problems for these structures. So, providing the suitable views of swelling condition can help to solid designs. The presented paper, tried to understand the clayey soil’s swelling potential related to Marageh city in East Azerbaijan Province, NW of Iran; by using comprehensive laboratory tests (concluded 25 samples from 10 different sampling location) which included physicochemical properties, USDA class of soil and clay mineralogical aspects. The experiment results was used by regression analysis for formulate the swelling based on laboratory indexes (i.e., water absorption, porosity, density, Gs, SO4-, Cl-, pH, Casagrande limits, UCS, XRD and clay content). According to the analysis results, the studied soil’s (where classified as clay, clay loam and silty clay) swelling status is varied and located in moderate to high potential تفاصيل المقالة