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 …
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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.
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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 ...
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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 …
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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 ...
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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 ...
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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), …
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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
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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 …
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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].
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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.
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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 ...
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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 ...
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The improved thermal conductivity of slag mixtures is attributed to the high iron oxide content in steel slag, a by-product of the steel industry. In contrast, natural aggregates …
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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 ...
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Its thermal conductivity is 1.203 ± 0.054 W m −1 K −1, and after 40 thermal cycles, the mass and thermal conductivity decrease by 1.7 % and 5.2 %, respectively. The excellent properties of HPCP were due to the formation of a high-purity anorthite ceramic crystalline phase in PCC, which could minimize the defects of the porous medium, and ...
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The variance analysis of thermal conductivity by steel fiber content and mixture type dependencies was calculated. The F of the results depending on steel fiber and mixture type are higher than corresponding F crit. The P-values are 0.007–0.03, which are lower than 0.05. ... addition of steel slag reduced mixtures' thermal conductivity, and ...
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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.
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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), …
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To better understand the thermal science in BFS melts containing various alumina gangues, the present work systematically investigated the thermal conductivity of CaO-SiO 2-Al 2 O 3-MgO melts with 0–15 mol% Al 2 O 3 using transient hot-wire method in the temperature range of 1648 to 1823 K. A fundamental understanding of the thermal conduction behavior is …
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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 …
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Table 6 Thermal Conductivity, Specific Heat Capacity and Density System Material Database Material Description . ... Roof Gravel/Slag – RG01 . 1.442 . 881 . 1674 Boards, Sheets & Deckings ... Steel Siding – HF-A3 . 44.970 . 418 . 7690 Plaster Plaster (Dense) 0.500 . 1000 . 1300 . Plaster (Lightweight) ...
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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.
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steel slag thermally conductive, while a large number of protrusions and micropores on the surface of the steel slag may be detrimental to thermal conductivity. The thermal conductivity first ...
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When the steel slag was used as thermal storage material, ... Due to a series of unique properties such as high melting points, low cost, and excellent thermal conductivity, etc., molten carbonates can realize the thermal stability in the region of interest, ∼700–800 °C with economic considerations. ...
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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 ...
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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 ...
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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 ...
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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 …
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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 …
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