No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
Steel slag is the main solid waste generated in the steel-making process, accounting for 15 to 20% of crude steel output [1].China's crude steel output in 2021 was 1.035 billion tons [2], more than half of the global crude steel output (1.9505 billion tons) [3], and the steel slag output exceeded 120 million tons.In contrast, the comprehensive utilization rate of …
To investigate the toughening effect and stress–strain relationship of steel fibre-reinforced steel slag micropowder ultra-high-performance concrete (UHPC), nine sets of specimens with coarse aggregate and steel fibre contents were prepared for axial compression and elastic modulus tests. This study examines the variations in compressive strength and …
The invention relates to a production process of steel slag micro-powder, which comprises the following steps: enabling wet steel slag powder with water content of 5% and particle size of 0-20mm generated after crushing and magnetic separation of steel slag to enter a mill for powder milling, conveying obtained fine powder into a vibration drying and powder …
TABLE 1 | Technical indexes of iron tailings powder and slag powder. Density/g·cm−3 45 μm sieve residue/% Water requirement ratio/% Specific surface area/m2·kg−1 Iron tailings 2.82 6.45 90 450
In order to study the flexural performance of the combined structure of steel-pipe and steel slag powder ultra-high-performance concrete (UHPC), nine round steel-pipe beams filled with steel slag powder UHPC of different types were fabricated according to the orthogonal test method with the steel pipe type, coarse aggregate content, steel fiber admixture, and …
In this experiment, ultrafine iron phosphate micro-powder was prepared by hydrothermal method which used phosphate slag as an iron source. The effects of reaction temperature, surfactants type and ...
Zhang et al. [38] confirmed that excellent strength and better immobilization of heavy material are attained when 30% of steel slag powder is added and 70% of fly ash into an alkaline combination ...
After the particle size meets the requirements, it will go through a magnetic separator for magnetic separation and get the final product. The price of processed steel slag powder is relatively higher, and it is the source of profit for the complete steel slag processing plant. The iron powder has a lower selling price with a larger quantity.
As a new type of admixture for high-performance concrete, slag micro powder has the advantages of improving various properties such as compressive strength, tensile strength, shear strength, …
Dredged sludge (DS) is regarded as the sediments dredged from rivers, waterways and harbor basins based on the demand for better water quality and adequate navigation channel [1], [2].The DS has the natural properties of high compressibility, high-water content, low bearing capacity and rich organic matter [3], [4], [5].Unsolidified DS is difficult to be directly used as …
To improve the properties of steel slag blended cements, a chemical activator was added into blended cements, the mechanical properties and durability of steel slag blended cements were investigated. The results show that steel slag in blended cement pastes presents low hydraulic activity and makes practically no contribution to strength development. After the …
Water requirements for normal consistency, setting times, boiling soundness, and autoclaved soundness of steel slag blended cements were determined according to EN 196-3 [12] and ASTM C151-09 [13]. Table 3 shows that PS cement paste has the lowest water requirement for normal consistency and the longest setting time, more important,
This study investigated the influences of ultrafine fly ash (UFA) and ultrafine slag powder (USL) on the compressive strengths, autogenous shrinkage, phase assemblage, and microstructure of magnesium potassium phosphate cement (MKPC). The findings indicate that the aluminosilicate fractions present in both ultrafine fly ash and ultrafine slag participate in the …
Steel slag, the main solid waste in the steel-making process, is produced more than 120 million tons annually in China.Most of the steel slag was stored in the open air, which brought potential safety and environmental protection risks such as land occupation and infiltration of heavy metal components into the soil. In recent years, the utilization and application of steel …
The ground granulated slag powder is drying by the hot air supplied by hot blast furnace, and with the help of hot air, the powder selecting is made in the separator. The qualified slag powder particles will be collected by bag dust collector, then conveyed to and stored in the silos by the air slide and elevator.
water–binder ratio, the mixing amount of regenerated micro-powder was 2.2, the volume ratio of PVA ber was 2.0%, and the water–binder ratio was 0.2, 0.25, 0.3. For the experimental group that studied the inuence of PVA ber volume rate, it was determined that the regenerated micro-powder dosage was Containing MSWI Powder
Slag Micro Powder Plant with Annual Output of 600,000 tons . Our engineer can customize specific solutions according to your requirements. Processing capacity: 35T/H per machine . Applied material: Slag . Material Fineness: 425 Mesh . …
Superfine slag powder production line is also called ultrafine slag micro powder plant or superfine slag powder making plant. Superfine slag powder production line is used to crush non …
Effectiveness of waste steel slag powder on the strength development and associated micro-mechanisms of cement-stabilized dredged sludge ... Several studies have recommended that further considerations must be directed towards the incorporation of sludge of water treatment plants (SWTP) with other high-silica-content waste materials, such as ...
Steel slag micronized powder, granulated blast furnace slag, and cement were used as cementitious materials to prepare a ed lightweight soil for roadbed filling to reduce the settlement and additional stress of the …
properties, the reasonable mix proportions of various compositions of RPC containing steel slag powders were obtained. The research provides important reference for the preparation and application of RPC in which cement is replaced with steel slag powders. Keywords: steel slag powder, cement, mix proportion, reactive powder concrete . 1 ...
The composite micronized powder is prepared by using blast furnace slag (BFS), water-quenched manganese slag (WQMS), manganese tailing slag (MTS) and desulfurization …
Blast furnace slag can be processed into the following materials by various processes. In China, blast furnace slag is usually processed into water slag, slag gravel, expanded slag and slag beads.Water slag is the process of putting the hot-melt blast furnace slag into water for rapid cooling, which mainly includes slag pool water quenching or furnace front …
To evaluate the possibility of using phosphorus slag powder instead of mineral powder as a filler in asphalt mastic, this study investigates the micro-characteristics of phosphorus slag powder and ...
water demand ratio of the recycled micro powder are increased slightly. (3) The density of recycled micro powder is about 2.6 g/cm3, which is between fly ash and slag powder. (4) The water requirement ratio of the recycled micro powders prepared by different components of the …
The slag grinding system is the core of the slag powder control system, which con- sists of batching station, conveyor belt, vertical mill, hot gas generator, dust collector and product warehouse.
For this study, six different recycled micro powders of construction waste were prepared, and their basic properties were studied. Compared with those of cement, slag …
Water quenched slag powder is an important mineral admixture for concrete. S95 slag powder produced by a factory ... grade I aggregate requirements of JG/T568-2019 "High performance concrete aggregate". See Table 4 for specific ... compressive strength and age of iron tailings micro-powder concrete, the verification group of concrete was ...
The dried water granulated slag is sent to the dust collector for dust removal to ensure the purity of the subsequent finished water granulated slag powder. Grinding. The raw material of water granulated slag is sent into the water-granulated blast furnace slag ball mill by screw conveyor.
The slag grinding plant(GGBS plant) is a production line that processes slag raw materials through a series of process steps to obtain slag powder products that meet the requirements. …
