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 ...
Semantic Scholar extracted view of "Topological Understanding of Thermal Conductivity in Synthetic Slag Melts for Energy Recovery: An Experimental and Molecular Dynamic Simulation Study" by Jian Yang et al. ... Ultra-low sulfur steel has excellent resistance to pitting and hydrogen-induced cracking, and is mainly used for gas pipeline …
Regardless, the thermal properties of steel slag asphalt concrete were shown to be better than those of conventional asphalt concrete. The most effective steel slag volume in asphalt concrete was shown to be 60 vol %. The snow melting efficiency of thermal conductivity asphalt concrete can be improved using an electrical-thermal …
Regardless, the thermal properties of steel slag asphalt concrete were shown to be better than those of conventional asphalt concrete. The most effective steel slag volume in asphalt concrete was shown to be 60 vol %. The snow melting efficiency of thermal conductivity asphalt concrete can be improved using an electrical-thermal system.
Steel Slag. The steel slags in the research are basic oxygen furnace (BOF) steel slags. …
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.
Jiao et al. [49] verified the feasibility of adding steel slag to asphalt mixes as thermal aggregate to increase thermal conductivity for electrical-thermal snow melting. All these studies focused primarily on the use of steel slag in flexible pavements. With no data available on rigid concrete with aggregates of steel slag, the data obtained ...
Experiment results indicate that diabase and hot-stuffy steel slag …
In this work, EAF slags from steelmaking industry were characterized. Steel slag is produced in the melting process of the iron ore and about 10–20% of slag is generated per ... Thermal conductivity of c slag fluctuated with temperature from 1.84 W/(m·K) at RT to 1.75 W/(m·K) at 500 °C, and the value of s slag increased with …
Thermal conductivities of four different ladle slags were measured at 1773 K, 1823 K, 1873 K, and 1923 K (1500 °C, 1550 °C, 1600 °C, and 1650 °C) using the transient hot wire method. Very good reproducibility was obtained. The thermal conductivity did not vary substantially with the variation of slag composition at 1873 K and 1923 K (1600 °C …
This study investigates the influence of steel slag content on the road …
The steel slag additive increased the thermal conductivity of the mixtures. A steel slag content of 20% abruptly changed the thermal conductivity of the mixture. As the steel slag content increased further, the thermal conductivity steadily increased as shown in Fig. 6. According to the previous test results, SSRAM specimens with different ...
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 …
The thermal conductivity of TCAC was tested using both parallel hot-wire and TPS methods. The thermal conductivity of TCAC was first increased, before decreasing with an increase in the steel slag replacement. The thermal conductivity reached a peak at of SS-60, and the λ value was increased by 8.23% compared with SS …
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%.
The thermal conductivity increased initially and then fell as the percentage of steel slag increased. The asphalt mixture including 60% steel slag instead of 3–5 mm aggregate (6.6% of the mixture) had a maximum thermal coefficient of 1.746 W / m . °C, which was only 4.78% of the predicted value.
The thermal conductivity of the SSRAM with different steel slag content (0%, 20%, 40%, …
The thermal performance of the backfill material used in ground source heat pump systems directly affects their heat transfer efficiency. To enhance the heat transfer efficiency, aiming at the low heat conductivity of existing backfill materials, this paper proposes a waste steel slag–calcareous clay mixture as the backfill material for buried …
Recycled solid waste steel slag and coal gangue are used as the carrier.. The infiltration efficiency can reach to 98.0 % due to the interconnected pores. • The composite showed a compressive strength of 146.9 MPa.. The eco-friendly matrix increased the thermal conductivity of solar salt by 7.08 times.. The composite had great thermal …
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].
The thermal conductivity of the steel slag is 0.4–1 W/(m⊡K) which is much less than that of the quartz sand and calcium carbonate. Consequently, increasing the SSC of the quartz sand would cause a decline in the thermal conductivity of the loose materials and the EICP-treated specimens.
The heat conductivity of clay improved in the range of 3.28 %–14.59 %, the heat conductivity of the steel slag improved in the range of 1.91 %–25.56 %, and the heat conductivity of mixtures 1 and 2 improved in the ranges of 3.97 %–28.57 % and 2.65 %–17.87 %, respectively, due to different gradations. This is attributed to the grading ...
The Thermal Conductivity Calculator is designed to compute the thermal conductivity of materials or determine the heat flux through objects based on Fourier's law. This guide offers a clear explanation of thermal conductivity, demonstrates how to apply the heat flux formula accurately, and discusses the units of thermal conductivity …
2.7 Thermal conductivity and heat capacity. In the ilmenite electro-smelting process, the titania slag with high activity is corrosive to refractory materials. Hence, the furnace wall is protected by a freeze lining of solid slag. Thermal conductivity directly affects the formation of the freeze lining in the furnace.
Steel slag aggregate and copper slag aggregate reduced thermal conductivity of concrete by 23 % and 4.5 % respectively compared to the natural aggregate sample. Finally, according to the experiment results and the use of Vikor statistical method, it was revealed that concrete samples made of 50 % copper slag …
Modified steel slag powder was used to create a modified steel slag/rubber composite material using self-made steel slag grinding modifier and combining it with carbon black and rubber matrix to treat hot braised steel slag, electric furnace steel slag, and air-quenched steel slag. Next, the thermal conductivity of the three types of …
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 …
Results showed that active minerals such as iron oxides make the steel slag thermally …
Experiment results indicate that diabase and hot-stuffy steel slag possesses higher thermal conductivity, and that particles of sizes 9.5–13.2, 1.18–2.36 and 0.3–0.6 mm are the most ...
The thermal conductivity of the SSRAM with different steel slag content (0%, 20%, 40%, 60%, 80%, and ) was 1.994, 2.188, 2.239, 2.255, 2.288, and 2.295 W/(m·K), respectively. Measurements of the outdoor temperature distribution further confirmed that steel slag increased the thermal conductivity of the mixtures, thereby …
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 ...
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 …
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 conductivity.
This study investigates the influence of steel slag content on the road performance, …