RETRACTED ARTICLE: Study of Factors Affecting the Compressive Strength of Sandy Soil Stabilized with Polymer |
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Authors: | Ali Reza Zandieh S Shahaboddin Yasrobi |
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Institution: | (1) Department of Civil Engineering, Tarbiat Modares University, Tehran, Iran |
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Abstract: | Material engineers are continually confronted by depletion of quality construction materials for road and airfield construction.
Even if good quality construction materials for road and airfield are available, the haul costs may preclude their use. Stabilization
of soils in order to improve strength and durability properties often relies on cement, lime, fly ash, and asphalt emulsion.
These materials are inexpensive, relatively easy to apply, and provide benefits to many different soil types. In addition,
there are a variety of nontraditional soil stabilization/modification additives available from the commercial sector such
as polymer emulsions, acids, lignin derivatives, enzymes, tree resin emulsions, and silicates. These additives may be in liquid
or solid state and are often touted to be applicable for most soils. Polymers may be easy to apply in permeable materials
such as sand and may achieve good stabilization in relatively shorter periods of time. These polymer materials can be used
for stabilizing, soil in road shoulders, slopes, and pads of military and emergency airports. In addition, these types of
materials can be used to prevent the movement of the dune sands on the sides of railroads and stabilizing the dust on the
surface of access roads. Within the present research, two different polymers of wide range of dosages have been applied. Following
results have been achieved: (1) These polymers improve the compressive strength from 0.03 N/mm2 for control sample to 5.2 N/mm2
for improved sample. (2) The optimum curing time of dune sands with different polymers is 7 days. (3) The UC strength of stabilized
samples soars with an increase in the temperature, in the first 24 h of the curing process. (4) When the concentration of
salt increased from 1 to 10 percent, UC strength of stabilized samples decreased. |
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Keywords: | |
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