Thermal conductivity of limestone at various temperatures

<strong>Thermal conductivity of limestone at various temperatures</strong> Junjie Chen Contributor: Junjie Chen, ORCID: 0000-0001-5055-4309, E-mail address: [e-mail], Department of Energy and Power Engineering, School of Mechanical and Power Engineering, Henan Polytechnic University, 2000 Century Avenue, Jiaozuo, Henan, 454000, P.R. China Limestone is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the mineral's calcite and aragonite. Limestone forms when these minerals precipitate out of water containing dissolved calcium. Magnesian limestone is an obsolete and poorly-defined term used variously for dolomite, for limestone containing significant dolomite, or for any other limestone containing a significant percentage of magnesium. Most limestone was formed in shallow marine environments, such as continental shelves or platforms, though smaller amounts were formed in many other environments. Much dolomite is secondary dolomite, formed by chemical alteration of limestone. Limestone is exposed over large regions of the Earth's surface, and because limestone is slightly soluble in rainwater, these exposures often are eroded to become karst landscapes. Most cave systems are found in limestone bedrock. Limestone has numerous uses: as a chemical feedstock for the production of lime used for cement, as aggregate for the base of roads, as white pigment or filler in products such as toothpaste or paints, as a soil conditioner, and as a popular decorative addition to rock gardens. Thermodynamic temperature (degrees kelvin), Thermal conductivity (watts per meter-kelvin) 472 1.19 553 1.21 683 1.19 813 1.11 952 1.12 1013 1.07 1075 1.03 1181 0.62 1253 0.57 1324 0.54 395.9 1.43 450.4 1.41 527.6 1.4 605.4 1.33**不同温度下石灰岩的导热系数** 陈俊杰 贡献者：陈俊杰，ORCID：0000-0001-5055-4309，电子邮箱：[e-mail]，河南理工大学机械与动力工程学院能源与动力工程系，中国河南省焦作市世纪大道2000号，邮编454000。 石灰岩是一类碳酸盐沉积岩，是生石灰的主要原料，其主要成分为方解石（calcite）与文石（aragonite）。当上述矿物从溶解有钙的水中析出时，便会形成石灰岩。“镁质石灰岩”是一个过时且定义模糊的术语，曾被不同地用于指代白云岩、含大量白云石的石灰岩，或是任何镁占比较高的其他石灰岩。绝大多数石灰岩形成于浅海环境，如大陆架或陆台，不过也有少量形成于其他多种环境中。多数白云岩为次生白云岩，由石灰岩经化学蚀变形成。石灰岩广泛出露于地球地表的大范围区域，由于石灰岩在雨水中微溶，这些出露区域常被侵蚀形成喀斯特地貌，绝大多数洞穴系统均发育于石灰岩基岩中。石灰岩用途广泛：可作为生产水泥所需生石灰的化工原料、道路基层的集料、牙膏或涂料等产品中的白色颜料或填料、土壤改良剂，同时也是岩石园中颇受欢迎的装饰石材。 本数据集包含以下参数：热力学温度（开尔文）、导热系数（瓦/(米·开尔文)），具体数据如下： 472 1.19 553 1.21 683 1.19 813 1.11 952 1.12 1013 1.07 1075 1.03 1181 0.62 1253 0.57 1324 0.54 395.9 1.43 450.4 1.41 527.6 1.4 605.4 1.33