Founded 1934 by Prof. Dr Stefan Bončev
A Geo-Sciences Journal of the Geological Institute “Strashimir Dimitrov”, Bulgarian Academy of Sciences
Official Journal of the Carpathian-Balkan Geological Association

Boriana Tchakalova

Boriana Tchakalova
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Plamen Ivanov
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Correlation between effective cohesion and plasticity index of clay

Volume 51 3 December 2022

Doncho Karastanev
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Boriana Tchakalova
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Dimitar Antonov
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Field experiment of cement-modified loess

Volume 51 2 August 2022

Boriana Tchakalova
Geological Institute Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Tzvetoslav Iliev
Geological Institute Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Scanning electron microscopy investigation of loess soil stabilized with cement and natural zeolite

Volume 51 1 April 2022

Boriana Tchakalova
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Boyko Berov
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Correlation between the liquid limit of clay derived by the Vasiliev and Casagrande test methods

Volume 50 3 December 2021

Doncho Karastanev
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Boriana Tchakalova
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Liquefaction potential assessment of saturated loess

Volume 50 1 April 2021

Boriana Tchakalova
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Effect of clay content on strength and permeability of plastic loess-cement

Volume 48 2 August 2019

Boriana Tchakalova
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Doncho Karastanev
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Geotechnical parameters of loess-cement mixture for construction of compacted soil-cement cushion

Volume 46 2 November 2017

Boriana Tchakalova
Geological Institute, 24, Acad.G.Bonchev Str., 1113 Sofia, Bulgaria
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Krastyo Todorov
Geological Institute, 24, Acad.G.Bonchev Str., 1113 Sofia, Bulgaria

Plastic soil-cement mixtures for isolation barriers

Volume 37 1-2 June 2008

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