Scanning electron microscopy investigation of loess soil stabilized with cement and natural zeolite-Reference-Cited by-同舟云学术

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

Published:2022-04 Issue:1 Volume:51 Page:15-21
ISSN:2535-1060
Container-title:Geologica Balcanica
language:en
Short-container-title:

Author:

Tchakalova Boriana¹^ORCID,Iliev Tzvetoslav¹

Affiliation:

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

Abstract

Zeolite and Portland cement have been used to stabilize a loess soil from the region of Kozloduy (North Bulgaria). This paper examines the microstructural behavior of cement–zeolite treated loess soil without compaction at water content higher than optimum. Scanning electron microscopy and semi-quantitative energy dispersive spectroscopy analyses on stabilized loess were carried out after various curing periods. The identification of the formation of cementitious products in treated loess soil was conducted by SEM–EDS spectral analysis. Based on the study of the microstructural development, it was found that the modified loess microstructure undergoes significant modifications during the observed period.

Publisher

Geological Institute, Bulgarian Academy of Sciences

Subject

General Earth and Planetary Sciences

Reference26 articles.

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3. BDS-EN197-1 2011, “BDS-EN197-1. 2011. Cement-Part 1: Composition, specifications and conformity criteria for common cements. Bulgarian Institute for Standardization (in Bulgarian).

4. BDS EN ISO/ TS 17892. 2015. Geotechnical investigation and testing – Laboratory testing of soil, Multi-part Document. Bulgarian Institute for Standardization (in Bulgarian).

5. Double, D., Hellawell, A., Perry, S.J. 1978. The hydration of Portland Cement. Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences 359 (1699), 435–451, https://doi.org/10.1098/rspa.1978.0050.

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