Prediction of mechanical properties of non-welded and moderately welded ignimbrite using physical properties, ultrasonic pulse velocity, and point load index tests

Binal, Adil

doi:10.1144/1470-9326/07-067

Cited by 27 publications

(11 citation statements)

References 28 publications

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“…The relationship of compressional wave velocity with porosity (Fig. 16), which has been previously shown by several authors (Wyllie et al, 1958;Gardner et al, 1974;Sousa et al, 2005;Binal, 2009;Heap et al, 2014), in our data shows that although the lithologies have been hydrothermally altered, which includes the infilling of pores and voids, the relationship between v p and effective porosity remains as expected, whereby the higher porosity samples have slower compressional wave velocities.…”

Section: Ultrasonic Wave Velocitiessupporting

confidence: 88%

Mechanical and physical properties of hydrothermally altered rocks, Taupo Volcanic Zone, New Zealand

Wyering

Villeneuve

Wallis

et al. 2014

Journal of Volcanology and Geothermal Research

181

140

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Section: Ultrasonic Wave Velocitiessupporting

confidence: 88%

Mechanical and physical properties of hydrothermally altered rocks, Taupo Volcanic Zone, New Zealand

Wyering

Villeneuve

Wallis

et al. 2014

Journal of Volcanology and Geothermal Research

181

140

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“…Uniaxial compressive strength and bulk density of the different layers range between 10 and15 MPa and 15 and 19 kN/m3, respectively. These values are comparable to those described for similar lithologies (Moon 1993;Tuğrul 2004;Binal 2009;Del Potro and Hürlimann 2009;Rodríguez-Losada et al 2009;Pola et al 2012), and they will be defined in more detail by means of future testing campaigns.…”

Section: Geomorphology and Geologysupporting

confidence: 78%

Landslide hazard, monitoring and conservation strategy for the safeguard of Vardzia Byzantine monastery complex, Georgia

et al. 2015

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This paper reports preliminary results of a feasibility project developed in cooperation with National Agency for Cultural Heritage Preservation of Georgia, and aimed at envisaging the stability conditions of the Vardzia monastery slope (rupestrian city cave in the south-western Georgia). The aim is the implementation of a low-impact monitoring system together with long-term mitigation/conservation policies. A field analysis was conducted to reconstruct geometry of the rocky cliff, characteristics of discontinuities, main failure modes, and volume of potential unstable blocks and geomechanical parameters. Instability processes are the combination of causative factors such as the following: lithology, frequency and orientation of discontinuities, slope orientation, physical and mechanical characteristics of slope-forming materials, and morphological and hydrological boundary conditions. The combined adoption of different survey techniques (e.g., 3D laser scanner, ground-based radar interferometry) could be the best solution in the interdisciplinary field of cultural heritage preservation policies. The collected data will be the basis for future activities to be completed in collaboration with local authorities for a complete hazard and risk characterization for the monastery site and the development of an early warning system to allow safe exploitation for touristic activities and for historical site preservation.

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“…Many studies on geotechnical characteristics of the tuffs and ignimbrites were performed in the last 20 years by several researchers (Moon 1993a(Moon , 1993bTopal and Doyuran 1997;Kuscu and Yildiz 2001;Aydan and Ulusay 2003;Ç obanoglu et al 2003;Topal and Sözmen 2003;Ş imşek and Erdal 2004;Ö ner et al 2006;Binal 2009;Yaşar et al 2009). Moon (1993a) suggested models to clear up the observed geomechanical response of whole, unweathered ignimbrite specimens in terms of the petrography, and particularly the microstructure, of the materials.…”

Section: Geotechnical Properties Of the Bitlis Ignimbritementioning

confidence: 99%

“…Hinis ignimbrites are definitely a preferable option for light building stone. These ignimbrites should not be used in floor covering Binal (2009). defined new equations to estimate mechanical properties of non-welded and moderately welded ignimbrite using index tests; also, a new chart using index properties was developed to estimate elastic moduli of ignimbrite Yaşar et al (2009).…”

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confidence: 99%

The effect of welding degree on geotechnical properties of an ignimbrite flow unit: the Bitlis castle case (eastern Turkey)

et al. 2011

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Ignimbrites are associated with nearly most of the world's volcanoes and are defined as a deposit from pyroclastic density currents. They consist predominantly of pumiceous lapilli and blocks, and glass shards, which shows evidence of having been emplaced as a concentrated hot and dry particulate flow. These rocks are widely used as building stone especially in ancient buildings. Bitlis valley is covered by ignimbritic products, derived from Nemrut stratovolcano, one of the significant volcanic centers in Eastern Anatolia. The Bitlis ignimbrite is separated into lower level (LL), middle level (ML) and upper level (UL) according to color, welding degree and structural features. All three levels were used extensively in many parts of the Bitlis castle as masonry materials. Studies were carried out on mineralogical and geochemical composition and on physical and mechanical properties of the ignimbrites. In addition, a freeze-thaw cycle test was executed. There are no considerable differences in mineralogical composition among the levels of ignimbrite. All levels contain plagioclase, sanidine, pyroxene, and opaque mineral. In addition, anorthoclase and quartz are seen. In general, the LL of ignimbrite shows relic perlitic and eutaxitic texture, whereas eutaxitic and vesicular texture are commonly developed in the ML and UL, respectively. Lower, middle, and upper level ignimbrite samples display similar and limited compositional spread in terms of major oxide elements. They have trachyte composition. Building stones can be classified according to mineralogy, mechanical and physical properties and processing types. Mechanical and physical properties are very important with respect to stone quality/durability. The mechanical and physical properties of the ignimbrites are controlled by the welding degree. It was found that increasing welding degree from UL to LL correlates with increasing density, compressive strength and slake durability index and with decreasing porosity. The Bitlis ignimbrites have turned out as susceptible to freeze-thaw cycles.

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Prediction of mechanical properties of non-welded and moderately welded ignimbrite using physical properties, ultrasonic pulse velocity, and point load index tests

Cited by 27 publications

References 28 publications

Mechanical and physical properties of hydrothermally altered rocks, Taupo Volcanic Zone, New Zealand

Mechanical and physical properties of hydrothermally altered rocks, Taupo Volcanic Zone, New Zealand

Landslide hazard, monitoring and conservation strategy for the safeguard of Vardzia Byzantine monastery complex, Georgia

The effect of welding degree on geotechnical properties of an ignimbrite flow unit: the Bitlis castle case (eastern Turkey)

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