In this study, graphite tailings were used to replace sand in the range of 0~, and the mechanical mechanism of graphite tailings concrete was examined …

The composite powders recycled from graphite tailings made a great contribution to the improvement of the tensile strength of SBR, and the particle size of the filler had a significant effect on the tensile property of SBR. The smaller the particle size of the filler, the higher the tensile strength of SBR. Composite powder alone made little ...

The main components of graphite tailings contain silicate minerals and residual graphite, which have potential pozzolanic activity and promote the hydration …

By observing the microstructure and XRD pattern of the 28-day hydrated mortar block, it was determined that the hydration products of the mortar with graphite tailings as an aggregate included ...

So far, the application of graphite tailings is relatively narrow, mostly used as materials for firing ceramic bricks, and also as aggregates for road subbases [34], [35]. The advanced utilization of graphite tailings mostly focuses on the extraction of heavy metals and the preparation of concrete. It has been noted that graphite tailings ...

The tailings are also very diverse in mineral phases even in the lead-zinc tailings. Figure 2 presents the XRD pattern of lead-zinc tailings coming from different resources. Previous research [] reveals that the mineral phases of the lead-zinc tailings include calcite, dolomite, quartz, kaolinite, galena, pyrite and gypsum, whereas other research [] exhibits …

Investigation of graphite tailings as a substitute for filler in asphalt mastics. February 2023. International Journal of Pavement Engineering 24 (1) DOI: 10.1080/10298436.2023.2172578. Authors ...

By observing the microstructure and XRD pattern of the 28-day hydrated mortar block, it was determined that the hydration products of the mortar with graphite tailings as an aggregate included ...

Hydrated aramid nanofiber network enhanced flexible expanded graphite films towards high EMI shielding and thermal properties. Compos. Sci. Technol. ... and X-ray diffraction (XRD) tests. The experimental results demonstrate that the graphite tailings cured by MICP exhibit commendable wind erosion resistance, water retention, and …

Graphite tailings and coal gangue (CG) are solid wastes produced by mines. ... The incorporation of hydrated lime can provide sufficient Ca(OH) 2, thereby increasing the efficiency of calcium(-aluminate)-silicate-hydrate (C(-A)-S-H) gel conversion into crystalline tobermorite and xonotlite, thereby increasing the strength of concrete [10]. The ...

carbon fiber as conductive material is stable. e tailings are. easy to disperse in concrete, because graphite tailing size. composition is even and the average particle size is 0.10 mm, which ...

The massive accumulation of graphite tailings causes serious environmental pollution, mainly from heavy metal pollution. Therefore, this article introduces a method of using graphite tailings as a high-content main material, cement as a small component of the auxiliary cementitious material, and clay as a substitute for cement. …

Abstract. In this article, the mechanical properties and material characterisation of graphite tailings concrete, in which graphite tailings are replaced as sand were investigated. The results ...

Graphite tailings, a type of waste material, pose significant environmental and human health risks when stored in tailing ponds. One effective large-scale recycling method for these tailings is to use them as fill for soilbags, which can then be applied to support areas along empty lanes. This study examines the vertical bearing capacity of …

The results showed that the concentration of graphite tailings has an important influence on the mechanical, electroconductivity, and material properties of concrete. Finally, a new model for ...

By observing the microstructure and XRD pattern of the 28-day hydrated mortar block, it was determined that the hydration products of the mortar with graphite …

The basic physical parameters of the graphite tailing samples are listed in Table 2. According to the data presented in the table, the porosity of graphite tailings is 41.53%. The natural dry ...

graphite tailings and hot-water cure method can effectively improve the early strength of cement-based materials and facilitate the formation of high-density calcium silicate hydrate (C-S-H ...

When the graphite tailings content was higher than 70%, the interface defects of the aggregate matrix increased, thus making it easier for cracks to propagate along the interface. ... At Stage 3, C 3 S and C 2 S were hydrated to form C–S–H and Ca(OH) 2. Ca–Si–Al film was formed on the surface of silica fume (Figure 23 c).

By observing the microstructure and XRD pattern of the 28-day hydrated mortar block, it was determined that the hydration products of the mortar with graphite tailings as an aggregate included ...

the 28-day hydrated mortar block, it was determined that the hydration products of the mortar with graphite tailings as an aggregate included ettringite, Ca ... of graphite tailings is quartz, muscovite, and calcite, the SiO2 content was very high. Therefore, Peng et al. [12] used graphite tailings as an alternative silicon source to …

In this study, graphite tailings and basalt fibers were added to cement mortar, and the impact of mixing GT and BF fibers on the mechanical characteristics and drying shrinkage properties of cement mortar were analysed through experimental studies. The hydration of cement mortar was investigated by using techniques such as energy …

Graphite tailings can easily inhibit the survival of active enzymes in the soil 7, ultimately causing damage to the physical and chemical structures of the environment …

Graphite tailings (GT) is solid wastes produced in large quantities in the process of graphite mining, but it is also a resource to be developed. ... However, after adding 40% GT, the various absorption peaks of the hydrated product did not change significantly. In summary, a proper combination of GT and RA can change the vibration of the O ...

Graphite tailings and coal gangue (CG) are solid wastes produced by mines. The large accumulation of surface materials poses great harm globally, and resource utilization is …

By observing the microstructure and XRD pattern of the 28-day hydrated mortar block, it was determined that the hydration products of the mortar with graphite tailings as an aggregate included ...

Graphite tailings and coal gangue (CG) are solid wastes produced by mines. The large accumulation of surface materials poses great harm globally, and resource utilization is an urgent problem to be solved. ... The incorporation of hydrated lime can provide sufficient Ca(OH) 2, thereby increasing the efficiency of calcium(-aluminate)-silicate ...

By observing the microstructure and XRD pattern of the 28-day hydrated mortar block, it was determined that the hydration products of the mortar with graphite tailings as an aggregate included ...

In this study, the combined effects of different amounts of graphite tailings (GT) as a substitute for sand and three cure methods on the early-age mechanical and material performances of cement mortar …

How to solve the adverse effect of high content of graphite tailings on reduced mechanical strength of concrete or taking full advantage of this material property …

3. Results and Discussion 3.1. Macroscopic Property Analysis of GTC 3.1.1. Compressive Strength of GTC. The substitution rate of graphite tailings in concrete is 0% to (in volume percentage), and the mechanical properties are shown in Figure 1.The volume replacement rate in the range of 10% to 20% has a positive effect on the improvement of …

Graphite tailings were used as the raw materials for the preparation of ed ceramics via a high-temperature self-ing method. The residual carbon in the tailings acted as the ing agent and no additional ing agents were required. The residual carbon reacted with Fe2O3 and produced gas that was wrapped by the liquid …