Abstract – The thermal conductivity of slag is an important parameter in the design of furnace-containment systems based on freeze-lining technology. Literature indicates that the crystal …
Steel slag; rubber; thermal conductivity; temperature stress; asphalt mixture 1 Introduction Steel slag is a by-product of the steel making process. Recycled steel slag is used in the construction industry and agriculture, but a large amount of steel slag becomes discarded on the ground, imposing huge pressures on environmental protection.
Results showed that active minerals such as iron oxides make the steel slag thermally conductive, while a large number of protrusions and micropores on the surface of the steel …
The use of steel slag, which is a by-product of the steel manufacture, in the construction of asphalt pavement would contribute to waste reduction and environment protection. ... Road Performance, Thermal Conductivity, and Temperature Distribution of Steel Slag Rubber Asphalt Surface Layer. Zhiqiang Shu, Jianmin Wu *, Shaoqing Li, Bingbing ...
This study investigates the effects of Ground Granulated Blast Furnace Slag (GGBS) on the thermal stability and compressive strength of concrete, aiming to identify novel insights and contribute ...
5.7 Thermal conductivity worksheet 40 5.6 Electrical conductivity worksheet 42 References 42 Appendix 1: Methods used to determine structure 47 Appendix 2: Details of MLL ... in the continuous casting of steel liquid slag infiltrates continuously between the metal and
The TCAC is designed with steel slag as the thermal conductive filler and used in the upper layer of the pavement to improve the heat transfer efficiency of the electrical-thermal system. The thermal conductivity (λ), road performance and electrical-thermal snow melting performance were studied in the laboratory. It is demonstrated that the ...
ratios of thermal conductivity. Keywords EICP Granite residual soil Heat transfer mechanism Steel slag Thermal conductivity 1 Introduction Geothermal energy is a potential clean and renewable heat resource to replace the traditional fossil fuels which emit the greenhouse gas contributing to the global environment degradation [1, 45].
Thermal conductivity of steelmaking slag-based controlled low-strength materials over entire range of degree of saturation: A study for ground source heat pump systems ... The easiest approach to increase the thermal conductivity of the materials is the use of conductive fillers such as steel grit, alumina grit, silica sand, graphite, and ...
In addition, the steel slag-based ceramic material combines the advantages of high thermal conductivity and high specific heat, with outstanding heat transfer rate and heat storage density. In terms of thermal durability, the solid particles exhibit ultra-stable solar weighted absorptance, superior thermal shock resistance, and abrasion resistance.
This work examined the thermal conductivity of Steel Slag Tiles (SST). Six samples were investigated with SS compositions ranging from 0100wt%. Thermal conductivity test was conducted following standard procedure. The steady-state heating approach was adopted in conducting the test. It was observed that the thermal conductivity of SST decreased as the …
The thermal conductivity test results of the steel slag asphalt mixtures (CG-1), CPC-SSA asphalt mixtures (CG-2), and TCE-based CPC-SSA asphalt mixtures (EG-1, EG-2, and EG-3) are exhibited in Fig. 13. Evidently, the thermal conductivity of the CG-1 (i.e., steel slag asphalt mixtures) is highest, which is 1.3526 W/(m·K). However, the ...
Steel slag exhibits varying thermal conductivities depending on its composition and application. Research has shown that the thermal conductivity of steel slag can be influenced by factors such as the presence of active minerals like iron oxides, surface characteristics, and slag content in mixtures. Studies have reported thermal conductivities ranging from 0.98 W/m⋅K to 1.746 …
Steel slag, a by-product of steelmaking, can be used as backfill material for energy structures, and the granite residual soil is a common soil type in civil infrastructure. The thermal conductivity of backfill materials and soils surrounding the piles is the crucial parameter which has influence on the heat transfer. In this paper, the steel slag and granite residual soil were …
DOI: 10.1016/j.jenvman.2024.122864 Corpus ID: 273369494; Conversion of hazardous waste into thermal conductive polymer: A prediction and guidance from machine learning. @article{Wang2024ConversionOH, title={Conversion of hazardous waste into thermal conductive polymer: A prediction and guidance from machine learning.}, author={Zhiyi Wang …
Using steel slag and fly ash solid wastes to fabricate ceramics-based phase change composites with excellent mechanical and thermal properties applied in thermal energy storage ... with compressive strength and Young's modulus of 43.84 and 10563.86 MPa, respectively. Its thermal conductivity is 1.203 ± 0.054 W m −1 K −1, and after 40 ...
GREAT THERMAL INSULATION PROPERTIES. Also known as mineral wool, stone wool is created by spinning molten rock and minerals with steel slag to create a cotton-candy-like wool product. Pressed into rolls and sheets, stone wool creates an incredibly effective insulation with sound-absorbing and fire-resistant properties. ... Thermal conductivity ...
Steel slag warm mix asphalt has better mechanical properties than limestone hot mix asphalt. The use of steel slag increases the aging index of the asphalt mixture and reduces the anti-aging ability of the asphalt mixture. In addition, the replacement of lime-stone aggregate with steel slag increases the optimal asphalt aggregate ratio by 0.45%.
PDF | On Aug 7, 2023, Young-Sang Kim and others published Application of hydraulic-thermal conductivity of steel slag based CLSM on the performance evaluation of horizontal GSHPs | Find, read and ...
Therefore, the thermal conductivity of steel slag was first qualitatively evaluated from a microscopic perspective. Second, the SSAM was prepared according to the principle of equal volume replacement and the heating test was conducted. The thermal conductivity of SSAM was quantitatively evaluated with the thermal coefficient as an index.
The thermal energy storage density of steel slag is 797.9 kJ·kg −1 (400–900 °C), the thermal conductivity was measured as 0.505, 0.532 and 0.670 W·(m·K) −1 at 25, 250 and 500 °C, respectively.
The steel slag heat storage material has the best performance when the content of pretreated steel slag is 60 wt% and the sintering temperature is 1200 °C. Its compressive strength is stabilized at about 80 MPa, thermal conductivity is 1.13 W/(m·K), and thermal density is 1222.168 J/g in the range of 50–1000 °C. More importantly, it has ...
Even more, the thermal conductivity is 1.331, 1.323, 0.889 W·(m·K) −1 at 25, 250, and 500 °C, respectively, which is 32.7% higher than that of steel slag. Hence, the thermal properties of steel slag have been significantly improved by the developed Na 2 CO 3 …
For the same density with the increasing of the steel slag thermal conductivity increases, specific heat decreases. The porosity is linear to the density of concrete.
The results showed that the carbon sequestration rate of the carbide slag-steel slag hybrid material could reach 24.48 %. The thermal storage density of sample C-SC4 reached 444.2 J/g, the thermal conductivity was 1.057 W/(m-K), …
Results showed that active minerals such as iron oxides make the steel slag thermally conductive, while a large number of protrusions and micropores on the surface of the steel slag may be …
Results showed that active minerals such as iron oxides make the steel slag thermally conductive, while a large number of protrusions and micropores on the surface of the steel slag may be detrimental to thermal …
Steel slag has a high specific heat capacity value (up to 0.95 J/(g·K)), good thermal conductivity and friction coefficient, which makes it a very promising material for …
In an effort to fully harness the potential of steel slag, it has been employed in the production of fire-resistant insulation blocks. A comprehensive investigation was conducted to examine the influence of sodium silicate modulus, water addition, hydrogen peroxide addition, and curing temperature on various properties such as porosity, apparent density, thermal …
SSRAM with 40% steel slag content has the best deformation resistance while SSRAM with 60% steel slag content performed well in low-temperature cracking resistance. The thermal …
In this paper, steel slag/steel fiber composite asphalt mixture were prepared. The effects of the addition of steel slag and/or steel fibers on the mechanical, thermal, induction heating and healing properties of asphalt mixture were investigated. The results showed that adding steel slag and/or steel fibers improves the water stability, particle loss resistance and fracture …
Notably, CGS has a porous-type structures with other materials, such as blast furnace slag, red mud, steel slag, and calcium carbide slag, rendering it suitable as a carrier for PCMs. Furthermore, CGS has a high carbon content [31], offering enhanced thermal conductivity compared with the currently researched porous shape-stabilized PCM ...
Steel slag modified with 30 wt% CFA at 1100 °C was identified as the optimum skeleton. The prepared C-PCMs containing 50 wt% salt showed a phase transition temperature of 653 °C with a high latent heat of 139 J/g and an excellent cycling stability. Additionally, its thermal conductivity reached 1.46 W/(m·K), 180 % higher than of pure salt.
Investigation on low-carbon shape-stable phase change composite by steel slag and carbide slag for solar thermal energy storage. Author links open overlay panel Yaxuan Xiong a, Yang Yang a, Aitonglu Zhang a ... density in the temperature range of 100 °C–400 °C was 371.1 J/g. The maximum thermal conductivity of sample SC4 was 1.263 W/(m·K ...
The thermal conductivity and specific heat of the asphalt mixtures decrease as the steel slag content increases. Furthermore, an increase in the void content leads to a decrease in thermal conductivity and an increase in specific heat capacity.
Substituting steel slag for mineral materials in road construction has potential economic and environmental benefits. Due to the excellent thermal conductivity of steel slag, it is often used in functional pavements. However, there are few studies on the thermal conductivity characterization of steel slag asphalt mixture (SSAM). For this reason, the …
Owing to their high thermal conductivity and large specific heat, steel-slag-based ceramics outperform other thermal storage ceramic materials made from waste solids. In exhaustive and harsh high-temperature stability tests, the steel-slag-based solid particles exhibit an ultra-stable solar weighted absorptance of 93.25 ± 0.09%, superior ...
For the same density with the increasing of the steel slag thermal conductivity increases, specific heat decreases. The porosity is linear to the density of concrete. Access through your institution. Read The Paper. You might also be interested in these eBooks. View Preview. Info: Periodical: Materials Science Forum (Volume 852) Pages ...