Experimental Study on the Dynamic Mechanical Properties and Crashing Behaviors of Limestone Under High Temperatures in Real-Time
Source abstract
Abstract
In this study, a split Hopkinson pressure bar (SHPB) test system with real-time temperature control was developed, and dynamic tests on limestone taken from deep coal mines within real-time temperatures of 25 to 800 °C were carried out. Additionally, the scanning electron microscope (SEM), X-ray diffraction (XRD), and energy dispersion spectrum (EDS) tests were conducted to analyze the fracture mechanism of limestone at real-time temperatures. The results reveal that the dynamic compressive strength of limestone linearly declines with increasing temperatures; due to not being affected by thermal shock damage, its strength degradation is not significant after cooling to room temperature, whereas the dynamic elastic modulus exhibits a negative exponential nonlinear decrease with the increase in temperatures. The average strain rate has a positive correlation with the dynamic compressive strength of limestone, while the dynamic elastic modulus exhibits variations in accordance with the Boltzmann function and its relationship with the strain rate. The combined influence of strain rate and temperature on the dynamic compressive strength of limestone can be accurately described by a binary quadratic function. The mechanism of real-time action on limestone can be divided into three stages: when the temperature is between 25 and 200 °C, crystal micro-expansion leads to the densification of micropores, which leads to the increase in limestone strength. When the temperature is between 200 °C and 600 °C, the formation of microcracks induced by thermal stress and intergranular expansion results in a reduction in limestone strength. When the temperature is between 600 and 800 °C, in addition to the continued expansion of the intergranular resulting in the increase in the number of micro-cracks, the decomposition of dolomite at high temperatures leads to chemical deterioration and further reduction in the strength of limestone.
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Research context
OpenAlex topics: Rock Mechanics and Modeling · High-Velocity Impact and Material Behavior · Structural Response to Dynamic Loads
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Physics and New Energy, Xuzhou University of Technology, Xuzhou 221018, China
School of Civil Engineering, Xuzhou University of Technology, Xuzhou 221018, China
State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering, China University of Mining and Technology, Xuzhou 221116, China
School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221116, China
Funding
National Natural Science Foundation of China · Excellent Innovation Team Project of Universities in Jiangsu Province, China (Engineering Structural Safety under Complex Environmental) · State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology
References (58)
Show source-provided references
1. Study on the mechanical properties and mechanical response of coal mining at 1000 m or deeper10.1007/s00603-018-1509-y ↗
2. Underground coal gasification on the Thulin site: Results of analysis from post-burn drillings10.1016/0016-2361(93)90292-A ↗
3. Underground coal gasification—Part II: Fundamental phenomena and modeling10.1016/j.pecs.2018.03.002 ↗
4. High temperature versus geomechanical parameters of selected rocks–the present state of research
5. Thermal Effect of High Temperatures on the Physical and Mechanical Properties of a Granite Used in UNESCO World Heritage Sites in North Portugal10.1016/j.jobe.2021.102823 ↗
6. Transformation plasticity and the effect of temperature on the mechanical behaviour of Hawkesbury sandstone at atmospheric pressure10.1016/j.enggeo.2012.09.007 ↗
7. Deep mining: A rock engineering challenge10.1007/s00603-019-01799-4 ↗
8. Skrzypkowski, K., Zagórski, K., and Zagórska, A. (2021). Determination of the Extent of the Rock Destruction Zones around a Gasification Channel on the Basis of Strength Tests of Sandstone and Claystone Samples Heated at High Temperatures up to 1200 °C and Exposed to Water. Energies, 14.10.3390/en14206464 ↗
9. Effects of strain rate and confining pressure on the compressive behavior of kuru granite10.1016/j.ijimpeng.2016.01.010 ↗
10. Effect of high temperature on deformation failure behavior of granite specimen containing a single fissure under uniaxial compression10.1007/s00603-018-1725-5 ↗
11. High-temperature mechanical, physical and thermal properties of granitic rocks—A review10.1016/0148-9062(83)91609-1 ↗
12. Effect of loading rates on the characteristics of thermal damage for mudstone under different temperatures10.1016/j.ijmst.2015.07.015 ↗
13. Comparison of mechanical properties in high temperature and thermal treatment granite10.1016/S1003-6326(16)64311-X ↗
14. An experimental study of effect of high temperature on the permeability evolution and failure response of granite under triaxial compression10.1007/s00603-019-01982-7 ↗
15. Investigation of the Effects of Two Different Cooling Treatments on the Physico-Mechanical and Microstructural Properties of Granite after High Temperatures10.1007/s40948-022-00454-7 ↗
16. An experimental study on the physico-mechanical properties of two post-high-temperature rocks10.1016/j.enggeo.2014.11.013 ↗
17. Laboratory Testing and Numerical Simulation of Properties and Thermal-Induced Cracking of Eibenstock Granite at Elevated Temperatures10.1007/s11440-020-00926-8 ↗
18. Temperature effect on AE energy characteristics and damage mechanical behaviors of granite10.1061/(ASCE)GM.1943-5622.0001094 ↗
19. Experimental research on the influence of loading rate on the mechanical properties of limestone in a high-temperature state10.1007/s10064-018-1332-4 ↗
20. Brittle–ductile transition of mudstone in coal measure rock strata under high temperature10.1061/(ASCE)GM.1943-5622.0001549 ↗
21. Isaka, B.L.A., Gamage, R.P., Rathnaweera, T.D., Perera, M.S.A., Chandrasekharam, D., and Kumari, W.G.P. (2018). An Influence of Thermally-Induced Micro-Cracking under Cooling Treatments: Mechanical Characteristics of Australian Granite. Energies, 11.10.3390/en11061338 ↗
22. Changes in the thermos dynamic properties of alkaline granite after cyclic quenching following high temperature action10.1016/j.ijmst.2021.07.010 ↗
23. Advances in experimental studies for deep rock dynamics
24. Experimental investigation of pre-flawed rocks under combined static-dynamic loading: Mechanical responses and fracturing characteristics10.1016/j.ijmecsci.2021.106755 ↗
25. Failure mechanism and coupled static-dynamic loading theory in deep hard rock mining: A review10.1016/j.jrmge.2017.04.004 ↗
26. A review of dynamic experimental techniques and mechanical behaviour of rock materials10.1007/s00603-013-0463-y ↗
27. A damage-based constitutive model for rock under impacting load10.1016/j.ijmst.2014.05.014 ↗
28. Analysis of the Behavior of Sedimentary Rocks Under Impact Loading10.1007/s00603-016-1010-4 ↗
29. An SHPB test study on stress wave energy attenuation in jointed rock masses10.1007/s00603-018-1586-y ↗
30. Dynamic Properties of thermally treated granite subjected to cyclic impact loading10.1007/s00603-018-1606-y ↗
31. Numerical simulations of failure characteristics of rock materials under blasting loads using the conjugated bond-pair-based peri dynamics10.1360/SSPMA-2019-0181 ↗
32. Crack propagation and dynamic properties of coal under SHPB impact loading: Experimental investigation and numerical simulation
33. Dynamic mechanical characteristics and fracture mechanism of gas-bearing coal based on SHPB experiments10.1016/j.tafmec.2019.102395 ↗
34. High strain rate compressive strength behavior of cemented paste backfill using split Hopkinson pressure bar10.1016/j.ijmst.2021.03.008 ↗
35. Effects of microwave radiation on dynamic compressive properties of basalt10.1016/S1003-6326(22)66027-8 ↗
36. A new technique for performing tortional split Hopkinson bar experiments at high temperatures10.1016/j.ijimpeng.2022.104314 ↗
37. Dynamic mechanical properties and cracking behaviours of persistent fractured granite under impact loading with various loading rates10.1016/j.tafmec.2022.103281 ↗
38. Experimental investigation on damage characteristics and fracture behaviors of granite after high temperature exposure under different strain rates10.1016/j.tafmec.2020.102823 ↗
39. Permeability evolution and crack characteristics in granite under treatment at high temperature10.1016/j.ijrmms.2020.104461 ↗
40. Experimental study on wave propagation through granite after high temperature treatment10.1016/j.ijrmms.2021.104946 ↗
41. Experimental study on precursor characteristics of rock failure based on strain and temperature changes10.1016/j.csite.2022.102632 ↗
42. Fracture properties and dynamic failure of three-point bending of yellow sandstone after subjected to high temperature conditions10.1016/j.engfracmech.2022.108366 ↗
43. Experimental study on effect of freeze-thaw cycles on dynamic mode-Ι fracture properties and microscopic damage evolution of sandstone10.1016/j.engfracmech.2023.109043 ↗
44. Failure criterion considering high temperature treatment for rocks from a micromechanical perspective10.1016/j.tafmec.2021.103226 ↗
45. Investigation of the Microstructura1 Characteristics of Heated Sandstone by Micro Computed Tomography Technique10.1007/s12665-022-10514-6 ↗
46. Effect of strain rate on the dynamic compressive mechanical behaviors of rock material subjected to high temperatures10.1016/j.mechmat.2014.12.006 ↗
47. The Quartz A↔β Phase Transition: Does It Drive Damage and Reaction in Continental Crust? Earth Planet
48. Dynamic Mechanical Behavior of Granite under the Effects of Strain Rate and Temperature10.1061/(ASCE)GM.1943-5622.0001583 ↗
49. Experimental study on physical and dynamic mechanical properties of limestone after different high temperature treatments
50. Mechanical behavior and damage constitutive model of granite under coupling of temperature and dynamic loading10.1007/s00603-018-1523-0 ↗
51. Isolation and identification of the intermediate and final products in the thermal decomposition of dolomite in an atmosphere of carbon dioxide10.1016/S0040-6031(00)00662-6 ↗
52. Zhao, W.Z., Liu, Z.G., and Pan, P.Z. (1960). Crystalline Mineral Petrology, China Shanghai Scientific and Technical Publishers.
53. Microstructure characteristics and fractal analysis of 3D-printed sandstone using micro-CT and SEM-EDS10.1016/j.petrol.2019.01.050 ↗
54. Understanding the influence of petrographic parameters on strength of differently sized shale specimens using XRD and SEM10.1016/j.ijmst.2021.07.004 ↗
55. Global Development of Commercial Underground Coal Gasification10.1088/1755-1315/76/1/012003 ↗
56. Recent Development on Underground Coal Gasification and Subsequent CO2 Storage10.1016/j.joei.2015.05.004 ↗
57. An Insight into Pore-Network Models of High-Temperature Heat-Treated Sandstones Using Computed Tomography10.1016/j.jngse.2020.103227 ↗
58. Study on Dynamic Mechanical Properties and Failure Mechanism of Sandstones under Real-Time High Temperature10.1155/2021/9628675 ↗