Effect of High Temperature on Mineralogy, Microstructure, Shear Stiffness and Tensile Strength of Two Australian Mudstones

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地灾害与地表过程重点实验室

	Effect of High Temperature on Mineralogy, Microstructure, Shear Stiffness and Tensile Strength of Two Australian Mudstones
	Liu, Xianfeng 1; Zhang, Chonglei1,2 ; Yuan, Shengyang 1; Fityus, Stephen 1; Sloan, Scott William 1; Buzzi, Olivier 1
刊名	ROCK MECHANICS AND ROCK ENGINEERING
	2016-09-01
卷号	49 期号:9 页码:3513-3524
关键词	Underground coal fires Sedimentary rock Mineralogy Microstructure MIP SEM
ISSN号	0723-2632
通讯作者	Buzzi, Olivier
英文摘要	This study aims at providing quality experimental data on the effects of temperature on tensile strength and small strain shear stiffness of two Australian mudstones. The objective is to provide multiscale data in view of developing a numerical model that can capture and simulate the complex multiphysics of underground coal fire propagation. Two mudstones were collected in the Hunter Valley, close to a known underground coal fire, referred to as "Burning Mountain." The rock specimens were heated to a range of temperatures (maximum of 900 A degrees C) for 24 h, and the materials were comprehensively characterized by X-ray diffraction, thermal gravimetric analyses, optical microscopy and scanning electron microscopy. In addition, mercury intrusion porosimetry was used in order to track changes in pore size distribution with temperature. Investigations at microscale were complemented by testing at the macroscale. In particular, the paper focuses on the evolution of the tensile strength and small strain shear stiffness as the materials are subjected to heating treatment. Results show that both parameters evolve in a non-monotonic manner with temperature. The observed mechanical responses are fully explained and corroborated by microstructural observations.
WOS标题词	Science & Technology ; Technology ; Physical Sciences
类目[WOS]	Engineering, Geological ; Geosciences, Multidisciplinary
研究领域[WOS]	Engineering ; Geology
关键词[WOS]	MECHANICAL-PROPERTIES ; COAL FIRES ; BEHAVIOR
收录类别	SCI
语种	英语
WOS记录号	WOS:000382673200008
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/17669]
专题	成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
作者单位	1.Univ Newcastle, Prior Res Ctr Geotech & Mat Modelling, ARC Ctr Excellence Geotech Sci & Engn, Callaghan, NSW 2308, Australia 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Peoples R China
推荐引用方式 GB/T 7714	Liu, Xianfeng,Zhang, Chonglei,Yuan, Shengyang,et al. Effect of High Temperature on Mineralogy, Microstructure, Shear Stiffness and Tensile Strength of Two Australian Mudstones[J]. ROCK MECHANICS AND ROCK ENGINEERING,2016,49(9):3513-3524.
APA	Liu, Xianfeng,Zhang, Chonglei,Yuan, Shengyang,Fityus, Stephen,Sloan, Scott William,&Buzzi, Olivier.(2016).Effect of High Temperature on Mineralogy, Microstructure, Shear Stiffness and Tensile Strength of Two Australian Mudstones.ROCK MECHANICS AND ROCK ENGINEERING,49(9),3513-3524.
MLA	Liu, Xianfeng,et al."Effect of High Temperature on Mineralogy, Microstructure, Shear Stiffness and Tensile Strength of Two Australian Mudstones".ROCK MECHANICS AND ROCK ENGINEERING 49.9(2016):3513-3524.