نتایج جستجو برای: void ratio swell

تعداد نتایج: 513375  

Journal: :تحقیقات آب و خاک ایران 0
بیژن پارسائی علی رئیسی استبرق مجید مرادی

expansive soils show swelling and shrinkage behavior when subjected to cyclic wetting and drying. the variation in water content influence the volume change in this kind of soil. these volume changes can cause ground movement which may result in damage to the buildings and structures. to study the behavior, a number of successive wetting-drying cycles were conducted on a statically compacted ex...

2008
T. Venkata Bharat P. V. Sivapullaiah M. M. Allam

Use of engineered landfills for the disposal of industrial wastes is currently a common practice. Bentonite is attracting a greater attention not only as capping and lining materials in landfills but also as buffer and backfill materials for repositories of high-level nuclear waste around the world. In the design of buffer and backfill materials, it is important to know the swelling pressures o...

Journal: :E3S web of conferences 2023

The hydromechanical properties of a South African expansive clay are reported. In this study,swell potential and swell pressure were assessed by two oedometric approaches, namely, the loading after wetting test test. data indicate that predictions from approaches remain similar, whereas greater heave obtained for approach. It is also observed magnitude predicted dependent on soaking stress cons...

ژورنال: علوم آب و خاک 2013
جمال عبداللهی, , علی رئیسی استبرق, , مهرداد مقدس, ,

Expansive soils swell and shrink periodically when subjected to seasonal water content changes. As a result, they are a constant source of problem in the design and construction of foundations. In this study, the behaviour of an expansive soil was studied through a number of experiments involving cycles of wetting and drying using three different water qualities. Laboratory tests were performed...

2010
Kejian Wang

Extrudate swell is often observed to be weakened in nanocomposites compared to the pure polymer matrix. A theory quantifying this would be significant either for optimum processing or for understanding their viscoelasticity. A unified extrudate swell correlation with material properties and capillary parameters was suggested for polymer melt and their nanocomposites when considering the reservo...

Journal: :iranian journal of science and technology transactions of civil engineering 2015
k. badv k. mohammadzadeh

the electro-osmotic consolidation is a method to improve geotechnical properties of soft clayey soils. the feasibility of electro–osmotically induced consolidation can be examined through the soil coefficient of electro–osmotic permeability (ke) and the electro–osmotic coefficient of water transport (ki). using an electro-osmotic testing cell, ke and ki parameters were measured in urmia lake we...

Journal: :Iraqi geological journal 2021

Owing to its propensity swell when in contact with water, expansive soil causes severe structural problems and shrinks they dry out. Soil stabilization is a well-known method used enhance the soil's physical engineering properties commonly adopted for improving structures. The mechanical of different soils evaluated by adding varying proportions marble dust (10, 20, 30 percent) Penjwen, Said Sa...

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