Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Plasticity and Strength Characteristics of Expansive Soil Treated with Xanthan Gum Biopolymer
The xanthan gum biopolymer is mixed with expansive soil in different proportions such as 0, 0.2, 0.5, 0.8 and 1.0% by weight of the dry soil mass. The plasticity, compaction and strength characteristics are studied by performing the liquid limit, plastic limit, shrinkage limit, linear shrinkage and unconfined compressive strength tests. The optimum moisture content (OMC) and maximum dry density (MDD) of different mixes are determined by performing light and heavy compaction tests. The UCS value of specimens compacted to MDD at OMC corresponding to heavy compaction effort is evaluated at curing periods of 0, 3, 7 and 28 days. With an addition of xanthan gum, the liquid limit and plastic limit values increase substantially, however, the plasticity index is found to decrease. An improvement in strength of the magnitude of 93% is observed at 1% xanthan gum. Finally, scanning electron microscope images depict the reason behind the UCS strength increment.
Plasticity and Strength Characteristics of Expansive Soil Treated with Xanthan Gum Biopolymer
The xanthan gum biopolymer is mixed with expansive soil in different proportions such as 0, 0.2, 0.5, 0.8 and 1.0% by weight of the dry soil mass. The plasticity, compaction and strength characteristics are studied by performing the liquid limit, plastic limit, shrinkage limit, linear shrinkage and unconfined compressive strength tests. The optimum moisture content (OMC) and maximum dry density (MDD) of different mixes are determined by performing light and heavy compaction tests. The UCS value of specimens compacted to MDD at OMC corresponding to heavy compaction effort is evaluated at curing periods of 0, 3, 7 and 28 days. With an addition of xanthan gum, the liquid limit and plastic limit values increase substantially, however, the plasticity index is found to decrease. An improvement in strength of the magnitude of 93% is observed at 1% xanthan gum. Finally, scanning electron microscope images depict the reason behind the UCS strength increment.
Plasticity and Strength Characteristics of Expansive Soil Treated with Xanthan Gum Biopolymer
Lecture Notes in Civil Engineering
Latha Gali, Madhavi (Herausgeber:in) / Raghuveer Rao, P. (Herausgeber:in) / Singh, Suresh Prasad (Autor:in) / Das, Ritesh (Autor:in) / Seth, Debatanu (Autor:in)
12.09.2020
15 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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