Evaluation of the frost resistance of fresh granodiorites from the Plana pluton in the region of the village of Gorni Okol, Bulgaria-Reference-Cited by-同舟云学术

Evaluation of the frost resistance of fresh granodiorites from the Plana pluton in the region of the village of Gorni Okol, Bulgaria

Published:2022-12 Issue:3 Volume:83 Page:251-254
ISSN:0007-3938
Container-title:Review of the Bulgarian Geological Society
language:en
Short-container-title:Rev. Bulg. Geol. Soc.

Author:

Krastanov Miroslav,Ivanov Plamen,Nankin Rosen

Abstract

This paper presents the changes in physical and mechanical parameters of fresh granodiorites from the Plana pluton after freezing. Laboratory studies were carried out to evaluate the properties of the granodiorites, such as determining the strength, density and water absorption of the rock material. A total of 39 samples at various weathering grades were tested at a wide range of density and water absorption values in the dry and saturated state. The results revealed that the absorption of water is highly dependent on the weathering grade. From the laboratory tests, reductions of rock material strength from various weathering grades with regard to density and water absorption are suggested. After carrying out a certain number of freeze-thaw cycles of the fresh granodiorites, their strength indicators also decrease.

Publisher

Bulgarian Geological Society

Reference17 articles.

1. Boyadjiev, S. 1971. Petrology of the Plana pluton. – Bull. Geol. Inst., Series Geochem., Mineral., Petrogr., 20, 219–242 (in Bulgarian with English abstract).

2. Dabovski, Ch. 1975. Structural studies in Plana pluton. – Geotect., Tectonophys., Geodyn., 2, 53–63 (in Bulgarian with English abstract).

3. Dobrev, N. D., Y. Sasaki, Y. Wakizaka. 2002. Granite outcrop classification by the state of weathering: A case study of Iwaki City. – Proc. Japan Society of Engineering Geology Meeting. Takamatsu, 31.10–01.11.2002, 339–342.

4. Georgiev, N., B. Henry, N. Jordanova, N. Froitzheim, D. Jordanova, Z. Ivanov, D. Dimov. 2009. The emplacement mode of Upper Cretaceous plutons from the southwestern part of the Sredna Gora Zone (Bulgaria): structural and AMS study. – Geologica Carpathica, 60, 15–33; https://doi.org/10.2478/v10096-009-0001-8.

5. Iliev, Il. 1968. Some possibilities for studying the physical and mechanical properties of rocks with ultrasound. – J. Hydrotechnika i Melioratsia, 4, 116–121 (in Bulgarian).