Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

The Comminution of Chert Gravel by Microwave Irradiation for Reuse Optimization of Quarry Areas

Version 1 : Received: 30 November 2023 / Approved: 30 November 2023 / Online: 1 December 2023 (10:15:13 CET)

How to cite: Tzibulsky, M.; Frid, V. The Comminution of Chert Gravel by Microwave Irradiation for Reuse Optimization of Quarry Areas. Preprints 2023, 2023120004. https://doi.org/10.20944/preprints202312.0004.v1 Tzibulsky, M.; Frid, V. The Comminution of Chert Gravel by Microwave Irradiation for Reuse Optimization of Quarry Areas. Preprints 2023, 2023120004. https://doi.org/10.20944/preprints202312.0004.v1

Abstract

Chert rock is a by-product of sand quarrying (about 40% in the geological section). All attempts to use ordinary technologies for aggregate production from chert have been economically unsuccessful, resulting in significant chert "waste" accumulation covering vast quarry areas. This paper presents the study results of the effect of microwave irradiation on the mechanical properties of chert gravel, which is mineralogically relatively homogenous and consists of fine quartz grains. The results show that an increase in irradiation time decreases the strength of chert gravel (by a factor of 4-6 for the 2.5 min of irradiation), while the quenching changes the fractional content of the samples after the crushing test, decreasing the Gravel-to-Sand ratio.

Keywords

microwave irradiation; rock comminution, quartz response, chert gravel, reuse of quarry area

Subject

Environmental and Earth Sciences, Environmental Science

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