Physical And Mechanical Properties Of Sandstones. Baltica, 35 (1), 23–36. The transfer of heat from the sur

Baltica, 35 (1), 23–36. The transfer of heat from the surface to the interior of material is a complex process, and the … In this study, thermophysical and mechanical tests were conducted on sandstone samples from room temperature to 1000 °C. By … The work aims to study the physical-mechanical properties of sandstones after exposure to a high temperature by physical measurements and unconfined compression tests, … The paper analyzes the deterioration characteristics of sandstone hydrophysical and mechanical properties under the action of … The results demonstrated that the mechanical properties of sandstones were significantly correlated with their physical properties and that the equations obtained from … As physical and mechanical property deterioration under high-temperature and acidic conditions are the key determiners of underground engineering long-term stability and … Thus, the changes of physical properties of sandstones under in situ conditions are controlled by both temperature and pressure. Finally, the physical and mechanical properties, microstructure and development rule of AE signal of sandstone were comprehensively analyzed. In the authors’ opinion pressure can … 23 since 1961 Physical and mechanical properties of sandstones from Southern Zanjan, north-western Iran Ali Lakirouhani, … This paper presents the influence of freeze–thaw cycles on physical and mechanical properties of Upper Red Formation sandstones in the southwestern Qom province … And the physical properties such as mass, volume and color of sandstone subjected to heat damage were measured. Lamination is macroscopically expressed as colour and grain size variations observed both in the deposit … The study on the correlation of rock physical and mechanical properties is of great significance to infer the engineering geological conditions of regional strata. The work aims to study the physical-mechanical properties of sandstones after exposure to a high temperature by physical measurements and unconfined compression tests, … As any other building material, dimension stones today have to fulfill the physical and technical requirements demanded by architects. conducted mechanical tests on intact quartzite after freeze-thaw cycles and obtained physical parameters and triaxial compression mechanical properties of quartzite [8]. The current generic framework could be applied to understand the internal and bulk mechanical properties of such … Elastic modulus decreases with increasing temperature and decline rate of granite is much greater than sandstone. We have studied the relationships … Physical and mechanical properties of sandstones from Southern Zanjan, north-western Iran. 1038/s41598 … In this article, the physical and mechanical properties of sandstone after thermal treatment from 25 to 800 °C are investigated b y … The sandstones with a laminated structure are common building materials. … temperature on the physical and mechanical properties of rock has an important effect on the carbon footprint. Based on the … There have been numerous studies on the physical and mechanical properties of feldspar sandstone and ordinary sandstone, such as those above-mentioned [9 – 13]. Based on the mineral composition, a new model … In this study, a comprehensive literature review was performed to build a database containing petrographic and mechanical … The physical properties, deformation, AE signal strength, and peak frequency of sandstones with different grain sizes under two … In this study, thermophysical and mechanical tests were conducted on sandstone samples from room temperature to 1000 °C. Finally, the XRD and SEM techniques were used … Low- to medium-maturity oil shale resources display substantial reserves, offering promising prospects for in-situ conversion in … However, physical properties should also be studied for engineering purposes. Importantly, some equations having remarkable correlations between the physical and mechanical properties can be used to predict how changes of the bulk density and … The theoretical model explains the degradation mechanism of the mechanical properties of red sandstone under the action of idealized … In this study, the physical and mechanical properties of sandstone after heat treatment were investigated experimentally. Manuscript submitted 7 December 2021 / … 23 since 1961 Physical and mechanical properties of sandstones from Southern Zanjan, north-western Iran Ali Lakirouhani, Majid Bakhshi, Afshin Zohdi, Jurgis Medzvieckas,Saulius Gadeikis* Therefore, NMR technology was adopted in this study to research the pore evolution law of sandstones with different acid treatment times, and their mechanical … The effects of wet–dry, freeze–thaw, and heat– cool cycles on the physical and mechanical properties of Upper Red Formation sandstones located southwest of Qom, central Iran, were … Lamination is macroscopically expressed as colour and grain size variations observed both in the deposit and within individual beds; … In order to investigate the physical and mechanical properties of sandstone containing fissures after exposure to high temperatures, fissures with different angles were prefabricated in the …. g. Up to 300 freeze–thaw cycles … Evaluation of physical and mechanical properties of intact sandstones through the Analytic Hierarchy Process (AHP) March 2023 … Material properties largely depend on their structure, and are strongly dependent on the scale of observation. The experimental results indicate that 400 … Abstract Sandstones quarried in the Firenzuola district (Florence, Italy) have been investigated in order to evaluate their outdoor durability. Numerous laboratory tests were conducted on intact sandstones … To investigate the effects of long-term freeze–thaw cycles on the physical and mechanical properties as well as the attenuation trend of … In addition, experimental data on sandstones from the literature are compiled and integrated into this study. The physical and mechanical properties of rocks at high temperatures are closely related to their mineral composition. This chapter focuses on the physical and … This comprehensive guide provides valuable information on the descriptive, electrical, physical, chemical, thermal, optical, and mechanical properties of sandstone, … Abstract The variation in rock mechanical properties with burial depth has always been a cutting-edge research topic worldwide. We have studied the relationships … The hydro-physical and hydro-chemical interactions between groundwater and a rock mass can lead to changes in the mineral composition and structure of the rock (e. Vilnius. In addition, the temperature effect on the physical properties … Request PDF | Experiment study of physical and mechanical properties of sandstone after variable thermal cycles | To study the effects of temperature cycles on the … Download Table | Physical and mechanical properties of Berea and Mansfield sandstones from publication: Compaction bands induced by … Request PDF | On Dec 1, 2017, Eunhye Kim and others published Correlations between the physical and mechanical properties of sandstones with changes of water content and loading … The analysis compared the changes in physical and mechanical properties (such as longitudinal wave velocity, porosity, … Sandsone is used as construction material. ISSN 0067-3064. from publication: Experimental Study on the Effect of the Freeze–Thaw Cycle in an Acidic Environment on the Shi 2 conducted uniaxial compression tests on sandstones at varying temperatures and with differing stratigraphies to ascertain the … This study investigated the changes in the physical parameters of sandstone (solution pH, mass, P-wave velocity, and porosity) and mechanical strength (tensile strength) … Uniaxial compression tests were carried out on bedded sandstone to explore the effect of exposure to high temperatures on the physical and mechanical properties of the specimens. The novelties of this … Abstract and Figures The impact of high temperature environments on the physical and mechanical properties of rocks is a … Mechanical properties of rock at high temperature are of importance for structure design and safety assessment in underground rock engineering. A … Physical and petrographic properties of sedimentary rocks have great influence on their mechanical behavior. However, there are few studies on the physical and mechanical properties of rocks under the … Multifactorial experiments explored the impact of these conditions on the rock’s physical properties and assessed mechanical properties such as peak stress, peak strain, and … The considered sandstones along with their original characteristics and mechanical properties are listed in Table 1. The experimental procedures of “after high-temperature … In this study, thermophysical and mechanical tests were conducted on sandstone samples from room temperature to 1000 °C. , … Request PDF | On Dec 1, 2024, Henggen Zhang and others published Experimental study on the deterioration mechanisms of physical and mechanical properties of red sandstone after … PDF | The physical and mechanical properties of rocks change significantly after being subjected to high temperatures, which poses … This paper presents the influence of freeze–thaw cycles on physical and mechanical properties of Alvand granitoids hard rocks, in the … The sandstones from Firenzuola are characterized by a heterogeneity of mineralogical, petrographical characteristics that strongly affected the physical and mechanical properties. … is obtained between the results of the simulations and experiments. … Then, according to the variation of physical and mechanical properties, the formation mechanism of damage is discussed and the damage process verified by the … Highlights Physical and mechanical behaviors of sandstone under freeze–thaw cycles are evaluated. Subsequently, the physical properties (including appearance, mass, P-wave velocity, and porosity) and mechanical properties (including static and dynamic compressive … Download scientific diagram | Physical and mechanical properties of sandstone. The present study is to understanding saltered properties of sandstone such as Petrographic, Physical and Mechanical of Mirpur District area … Wang et al. PDF | The physical and mechanical properties of rocks will change significantly after being subjected to high temperatures, which … Based on the strength deterioration ratio, it was found that freeze–thaw cycles degrade the physical and mechanical properties of … Based on the strength deterioration ratio, it was found that freeze–thaw cycles degrade the physical and mechanical properties of … In this study, changes in the basic physical properties, mineral composition, mass, and microstructure of layered sandstone were … In this article, the physical and mechanical properties of sandstone after thermal treatment from 25 to 800 °C are investigated by laboratory tests. Based on the test … Subsequently, the physical properties (including appearance, mass, P-wave velocity, and porosity) and mechanical properties (including static and dynamic compressive … In order to investigate the physical and mechanical properties of sandstone containing fissures after exposure to high temperatures, … Therefore, a study on the changes of the physical and mechanical properties and pore structures of rocks after high-temperature treatment is necessary to ensure the operation … The physical and mechanical properties of rocks change significantly after being subjected to high temperatures, which poses … The mechanical properties of rock, such as unconfined compressive strength, are important to many engineering problems such … As a typical sedimentary rock, the number of beddings in the horizontal direction of sandstone is far greater than that in the vertical … Secondly, their physical and mechanical properties, that is, their densities, porosities, strengths, hardnesses and elastic properties were also determined at the same … To investigate more accurately the effect of salt precipitation on the physical and mechanical properties of a tight sandstone, salt precipitation experiments was conducted. However, due to the difficulty in sampling from … Consequently, investigating the physical and mechanical properties, as well as the fracture characteristics, of rocks subjected to high-temperature treatment under various … High temper-ature will change the physical properties of rock, induce thermal cracks and cause rock deterioration; therefore, the thermal and mechanical stability of rock is very important for … Even in homogeneous sandstones, some characteristics in mechanical and physical properties may be influenced by their characteristics in composition and textures. Variation in microscopic pore structure due to freeze–thaw cycles is the … Sandstones quarried in the Firenzuola district (Florence, Italy) have been investigated in order to evaluate their outdoor durability. Brazilian disc test, axial … It is of great significance to study the influence of freeze–thaw cycles on rock for the prevention and treatment of tunnel diseases in cold regions. In this study, thermophysical and mechanical tests were conducted on sandstone samples from room temperature to 1000 °C. Prediction equations for the … In studies of rock properties subjected to cyclic wet-ting–drying, mechanical and physical properties of rock have been extensively studied, but the microstructure of rock is often only … Since rock mass in many fields of rock engineering usually undergoes a cyclic heating and cooling process, it is very meaningful to investigate the variations of rock … Abstract The physical and mechanical properties of rocks at high temperatures change considerably with geothermal exploitation, … There are a lot of anions and cations in rocks, showing acid-alkaline properties. Under the influence of … Rocks are used in engineering works as monuments, building stones, and architectural covering stones. Deterioration characterization of sandstone physical and mechanical properties under mining and water action Scientific Reports December 2024 14 (1) DOI: 10. from publication: Influence of substrate properties and interfacial roughness on … The effects of water and temperature on physical and mechanical properties of rocks have always been an important problem in engineering projects especially in cold … This paper studied the physical–mechanical properties and damage mechanism based on porous structure evolution after continuous/periodic heating with identical 10 h of … Then, according to the variation of physical and mechanical properties, the formation mechanism of damage is discussed and the damage process verified by the … As can be seen from the above literature, there is a breakthrough in the research on sandstone in terms of influencing factors, physical and … Abstract and Figures This paper presents the influence of freeze–thaw cycles on physical and mechanical properties of Upper Red … Hier sollte eine Beschreibung angezeigt werden, diese Seite lässt dies jedoch nicht zu. Their weathering behaviors … Download scientific diagram | Physical and mechanical properties of granite, marble and sandstone. ndgdcyx1wtz
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