Quantification of thermally-induced microcracks in granite using X-ray CT imaging and analysis

  title={Quantification of thermally-induced microcracks in granite using X-ray CT imaging and analysis},
  author={B. L. Avanthi Isaka and P. G. Ranjith and T. D. Rathnaweera and M. S. A. Perera and V. R. S. De Silva},

Investigation of the microstructural characteristics of heated sandstone by micro-computed tomography technique

Heritage buildings always pose challenges due to experiencing high temperatures and pressure over time. Sandstone is one of the common sedimentary rock types used for these buildings. Therefore, it

An Investigation of Thermal Effects on Micro-Properties of Sudbury Norite by CT Scanning and Image Processing Method

Rock is constantly subjected to stress and thermal conditions. Thermal-induced micro-cracks will be generated as a result of different thermal expansion gradations between different minerals. This

Real-Time Visual Analysis of the Microcracking Behavior of Thermally Damaged Granite Under Uniaxial Loading

In high-temperature rock engineering projects, rocks are subjected to external loads. Studying the cracking behavior of thermally damaged rock under uniaxial loading is of great significance to

Effects of Cyclic Heating and Water Cooling on the Physical Characteristics of Granite

This paper aims to study the effect of cyclic heating and flowing-water cooling conditions on the physical properties of granite. Ultrasonic tests, gas measured porosity, permeability, and microscope

Experimental and Numerical Investigation on Thermal Damage of Granite Subjected to Heating and Cooling

Rock mass is frequently subjected to rapid cooling in geothermal reservoir during water injection and reinjection. In this paper, to understand the effects of cooling treatments on heated granite,

Effect of Different Cooling Treatments on the Tensile Properties and Fracture Modes of Granite Heated at Different Temperatures

Brazilian tests and 3D fracture surface measurements were carried out on granite subjected to different temperatures (25, 100, 200, 300, and 400 °C) followed by different cooling treatments (water

Mineral Composition, Pore Structure, and Mechanical Characteristics of Pyroxene Granite Exposed to Heat Treatments

In deep geoengineering, including geothermal development, deep mining, and nuclear waste geological disposal, high temperature significantly affects the mineral properties of rocks, thereby changing

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This study investigated the effects of cooling thermal shock on the P-wave velocity of granite and analyzed its microstructure. First, specimens were heated to high temperatures (400, 500, 600, and



An influence of thermally-induced micro-cracking under cooling treatments: Mechanical characteristics of Australian granite

The aim of this study is to characterise the changes in mechanical properties and to provide a comprehensive micro-structural analysis of Harcourt granite over different pre-heating temperatures

Ultrasonic imaging and acoustic emission monitoring of thermally induced microcracks in Lac du Bonnet granite

Concurrent ultrasonic tomography and acoustic emission monitoring were employed to study thermally induced microfracturing in an unconfined, 15-cm cube of Lac du Bonnet granite from Atomic Energy of

Micromechanics of thermally induced cracking in three crustal rocks

Samples of Westerly granite, Frederick diabase, and Oak Hall limestone were thermally cracked at room pressure to various peak temperatures. Scanning electon microscopy (SEM) was performed on

Visualization and Quantification of Thermally Induced Porosity Alteration of Immature Source Rock Using X-ray Computed Tomography

This paper summarizes results of a successful laboratory investigation to visualize and quantify pyrolysis-induced porosity evolution of Uinta Basin organic-rich source rock using X-ray computed