The influence of the characteristics of quartz and mineral deterioration on the strength of granitic dimensional stones

Sousa, Luís

doi:10.1007/s12665-012-2036-x

Cited by 70 publications

(34 citation statements)

References 55 publications

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“…The unsound constituents include alteration products of major rock forming with strength of granitic rocks from different regions (Tugrul and Zarif, 1999;Khalil et al, 2015;Sajid and Arif, 2015) however, similar comparisons can portray either a negative relation (Sousa et al, 2013;present study) …”

Section: Concentration Of Mineralsmentioning

confidence: 79%

“…Yilmaz et al, 2011;Arif et al, 2013;Sousa, 2013) will highlight novel perceptions about the textural and mineralogical controls and clarify the discrepancies between the different interpretations from earlier research (e.g. Tugrul and Zarif, 1999;Sousa, 2013;Sajid and Arif, 2015).…”

Section: Introduction 11 Project Statementmentioning

confidence: 78%

“…Sengor (1979) and Jan and Karim (1990) related these alkaline rocks to Permian rifting along the Gondwana continental margin. This interpretation is supported by Permian radiometric ages (250-290 Ma) of the constituent rock types (Le Bas et al, 1987;Zeitler, 1988;Ahmed et al;2013).…”

Section: Geological Settingmentioning

confidence: 84%

“…The importance of textural characteristics of rocks in describing the mechanical behaviour has been elaborated by several workers (e.g. Tugrul and Zarif, 1999;Fujii et al, 2007;Lindqvist et al, 2007;Yilmaz et al, 2011;Sousa, 2013 (Akesson et al, 2003;Tugrul, 2004;Zorlu et al, 2008;Yilmaz et al, 2011;Sousa, 2013). The mineralogical composition of major rock forming minerals is essential when assessing the mechanical behaviour of rocks together with assessment of the potential influence of texture (Tugrul and Zarif, 1999;Yilmaz et al, 2011;Arif et al, 2013).…”

Section: Rocks Textures As a Controlling Factormentioning

confidence: 99%

“…The important petrographic features controlling strength of rocks include overall grain size of rock (Bell, 2007), size and shape of individual mineral, modal concentration of harder minerals (Tugrul and Zarif, 1999;Yilmaz et al, 2011), nature of the grain boundaries (Sousa, 2013), arrangement of grains and their preferred alignments . However, some uncertainties still exist which need to be properly explored particularly concerning the effect of modal concentration of individual minerals and the overall grain size of rocks (Yilmaz et al, 2011).…”

Section: Scope Of the Current Investigationmentioning

confidence: 99%

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Petrographic features as an effective indicator for the variation in strength of granites

Sajid

Coggan

Arif

et al. 2016

Engineering Geology

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The important textural features include average grain size of rock, grain boundary recrystallization, maximum grain size of major rock forming minerals, mean grain size of cleaved minerals, mineral exsolution and variation of grain size within a rock. The petrographic observations, however, are more effective to describe the strength variation of granites having analogous weathering grade as change in degree of weathering has a dominant effect on rock mechanics.

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Section: Concentration Of Mineralsmentioning

confidence: 79%

Section: Introduction 11 Project Statementmentioning

confidence: 78%

Section: Geological Settingmentioning

confidence: 84%

Section: Rocks Textures As a Controlling Factormentioning

confidence: 99%

Section: Scope Of the Current Investigationmentioning

confidence: 99%

See 3 more Smart Citations

Petrographic features as an effective indicator for the variation in strength of granites

Sajid

Coggan

Arif

et al. 2016

Engineering Geology

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Impact of soft minerals on crack propagation in crystalline rocks under uniaxial compression: A grain‐based numerical investigation

Zhou,

Lv,

et al. 2024

Num Anal Meth Geomechanics

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Varying external conditions in the metallogenetic process of crystalline rocks contribute to the complex mineral and textural characteristics, rendering the mechanical properties highly heterogeneous at the mineral scale. This research focused on the influences of minerals with relatively low strength and stiffness (soft minerals) in crystalline rocks on their cracking behavior. A particle‐based discrete element method (DEM) was first employed to establish random grain‐based models (GBM) of crystalline rocks containing soft minerals with different contents, strengths, and stiffnesses. On this basis, responses of the mechanical properties and crack propagation to these parameters were systematically investigated and an optimized micro‐parameter calibration method for real CT (computed‐tomography) ‐based GBM was then proposed considering the characteristics of soft minerals. The results demonstrate that with the decrease of the strength of soft mica, the intragranular cracks are prone to initiate and propagate inside the soft minerals and lead to the final crack coalescence. The decrease in the stiffness of soft minerals enhances their controlling effects on the cracking propagation. Based on the CT‐based granite model, it was found that a heterogeneous stress field is produced due to the spatial distribution of the soft (mica) and hard (quartz and feldspar) minerals, and the mica minerals tend to terminate cracks or force cracks to deflect or bypass individual grains during crack propagation. This study sheds light on the damage and failure processes of crystalline rocks with contrast mineral components.

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Rock Mass Classification for the Assessment of Blastability in Tropically Weathered Limestones

Bhatawdekar

Mohamad

Singh

et al. 2020

Lecture Notes in Civil Engineering

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The influence of the characteristics of quartz and mineral deterioration on the strength of granitic dimensional stones

Cited by 70 publications

References 55 publications

Petrographic features as an effective indicator for the variation in strength of granites

Petrographic features as an effective indicator for the variation in strength of granites

Impact of soft minerals on crack propagation in crystalline rocks under uniaxial compression: A grain‐based numerical investigation

Rock Mass Classification for the Assessment of Blastability in Tropically Weathered Limestones

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