Effects of Steel Slag Powder Content and Curing …
paper, alkali-activated ultra-high-performance concrete (AAM-UHPC) was prepared by replacing ground granulated blast furnace slag (GGBFS) powder with different proportions of steel slag powder, and its workability, mechanical properties, curing condition, microstructure, and pore structure were investigated.
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Applications of Steel Slag Powder and Steel Slag …
The applications of steel slag powder and steel slag aggregate in ultra-high performance concrete (UHPC) were investigated by determining the fluidity, nonevaporable water content, and pore structure of paste and the compressive strength of concrete and by observing the morphologies of hardened paste and the concrete fracture …
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Self-Similar Fractal Characteristics of Phosphorus Slag Powder
The phosphate slag powder has a high activity. The 28 d activity index in Table 4 shows that the powdered phosphate slag's activity index with different surface areas ranges from 0.8774 to 1.1132, ... Z. W. Wu, "High performance concrete and its fine mineral admixtures," Architecture Technol, 30, No. 3, 160–163 (1999).
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Utilization of steel slag in ultra-high performance concrete …
Cementitious materials used in this study were P.O. 52.5 Portland cement, fly ash, silica fume and steel slag. Their chemical and physical characteristics are shown in Table 1.Steel slag was ground basic oxygen furnace steel slag with a similar particle size distribution as cement and fly ash (Fig. 1).Silica fume has a 94.8% SiO 2 content and a …
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Development of high-performance self compacting
The mineral admixtures used were eggshell powder (ESP) and ground granulated blast furnace slag (GGBFS). Eggshell waste was gotten from a Cafeteria in Covenant University, Ogun State. The waste had to be sun-dried for 24 h. The eggshell waste was ground into a fine powder and sieved through 150 µm sieve to allow for …
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Efficiency of high energy over conventional milling of …
Slag reactivity in cementitious materials depends on achieving powder finesse. • One hour of high energy milling is sufficient to use slag as substitute to cement. • Conventional milling has negative impact on mechanical performance of cement paste. • High energy milled slag improves mechanical performance of cement paste.
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A comprehensive investigation on the impacts of steel slag …
Local river sand (RS) with a fineness modulus of 2.84, density of 2.66 g/cm 3, and WA of 0.53% was used as the fine aggregate.The coarse aggregates included crushed stone (CA) and SS, which were obtained directly from a steel factory in Central Vietnam (chemical composition shown in Table 1).The physical properties of the coarse …
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Synergistic preparation of high-performance …
In this study, composite blast furnace slag powder (CBFS) was prepared by using RM, FA, DG, and BFS based on the synergistic effect of multiple solid wastes and …
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Durability of concrete with electric arc furnace slag aggregate
The density of the EAF slag used (between 3310 and 3570 kg/m 3) is comparable to that of aggregates used to produce heavyweight concrete [47], [48], [49].The limestone aggregate is considered the reference for normal and high-strength concrete; the barite aggregate is considered the reference for heavyweight concrete.
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Hydration kinetics and microstructure development of Ultra-High …
Microwave curing, which has the advantages of high efficiency, heating without hysteresis effect, heating fast and uniform, etc, has caused extensive researchers' concern [[30], [31], [32], [33]].Microwave is a kind of electromagnetic waves, whose frequency ranges in 3 × 10 8 Hz-3 × 10 11 Hz [34].When microwave radiates to an object, …
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Design and assessment of eco-friendly ultra-high performance …
An eco-friendly UHPC was designed by the modified Andreasen and Andersen packing model and prepared with cement partially replaced by steel slag powder (SSP) and glass powder (GP) at a fixed mass ratio of 2:1. An improved strengths and resistance to drying shrinkage was obtained with a combined replacement of SSP and …
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Application of High Performance Concrete Mixed with Steel Slag Powder …
Used in combination with Super-plasticizer admixture, steel slag powder can lead to economical high performance concrete for highway pavements with enhanced durability and reduced cement content. The properties of steel slag cement and concrete with different types of steel slag and different dosage of admixtures are studied in this …
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Improving the performance of ultra-high performance
To improve the performance of ultra-high performance concrete (UHPC) containing lithium slag (LS-UHPC), this study attempted to replace a part of the lithium slag (LS) in LS-UHPC with limestone powder (LP). And the effect of incorporating different ratios of LS and LP on UHPC was explored.
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Development of an eco-friendly ultra-high performance concrete based …
Hence, high compactness and curing stability are necessary for the solidified body. Ultra-High-Performance Concrete could solve the two problems entirely. UHPC has ultra-high mechanical properties (Richard and Cheyrezy, ... such as the UHPC with ground granulated blast furnace slag powder (GGBS), limestone powder (LP), fly …
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High titanium heavy slag powder as a sustainability filler …
Results showed that P-AM presented the optimum performance when the content of steel slag powder was 23% by mass of phosphogypsum. Fatigue and rutting factor of asphalt mortar were enhanced by PF.
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Applications of Steel Slag Powder and Steel Slag …
The applications of steel slag powder and steel slag aggregate in ultra-high performance concrete (UHPC) were investigated by determining the fluidity, nonevaporable water …
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High titanium heavy slag powder as a sustainability filler …
Asphalt mixtures, a widely used and high-performance road material, consist of asphalt binder, aggregate, and mineral filler (fine aggregate passing through the 0.075 mm sieve) [9, 10]. ... High titanium heavy slag powder has its own unique characteristics, and there have been no research results on the use of HSP as filler of asphalt mortar. ...
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Mechanical performance, impact behavior and
This study aimed to enhance the efficient utilization of industrial solid waste by developing Ultra-High-Performance Engineered Cementitious Composites (UHP-ECC) using waste rubber powder (RP) and coal furnace slag (CFS) as substitutes for cement (with substitution ratios of 0%, 20%, 40%, 60%).
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Effects of Steel Slag Powder Content and Curing …
The accumulation of steel slag and other industrial solid wastes has caused serious environmental pollution and resource waste, and the resource utilization of steel …
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Effects of Steel Slag Powder Content and Curing Condition …
The accumulation of steel slag and other industrial solid wastes has caused serious environmental pollution and resource waste, and the resource utilization of steel slag is imminent. In this paper, alkali-activated ultra-high-performance concrete (AAM-UHPC) was prepared by replacing ground granulated blast furnace slag (GGBFS) …
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Slag uses in making an ecofriendly and sustainable concrete: A …
Slag, as shown in Fig. 1, is the 16th ingredient of high-performance concrete production [22], called supplementary cementitious materials (SCM) [23], that can enhance the strength and durability of concrete [2].The highly fine slag powder, with a surface area of 400–600 m 2 /kg and a bulk density of 1200 kg/m 3, can be mixed with …
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Construction Materials | Free Full-Text | Properties of High …
Additionally, a graded volume fraction of micro-steel fibers (0%, 1.5%, 3%, 5%, 6%) was used to systematically study and analyze the performance of high-content micro-steel fiber self-compacting concrete mixed with fly ash and slag powder.
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Effect of Steel Slag Powder on the Performance of …
Steel slag powder and construction waste have received widespread attention for their resource utilization as solid waste. This article uses steel slag powder and recycled concrete aggregates to prepare controlled low-strength materials (CLSM). The study investigates the influence of steel slag powder replacing cement and recycled …
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Effects of Steel Slag Powder Content and Curing Condition …
1. Introduction. The main characteristics of ultra-high performance concrete (UHPC) are high compactness, high strength, and high durability, which are obtained by using a low water-cement ratio and batching with reference to the particle dense packing theory in the production process [1,2].The unit cubic cement consumption of UHPC is four times …
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Design and assessment of eco-friendly ultra-high performance …
DOI: 10.1016/j.powtec.2023.118356 Corpus ID: 257062528; Design and assessment of eco-friendly ultra-high performance concrete with steel slag powder and recycled glass powder
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Microstructure of ultra high performance concrete containing lithium slag
Lithium slag (LS) is a byproduct, which is discharged in the process of the lithium carbonate using sulfuric acid method when the spodumene ore is calcined at high temperature of 1200 °C. According to the statistical analysis, about nine tons of LS are discharged when one ton lithium salt is produced in the production process of lithium …
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Applied Sciences | Free Full-Text | High Performance Self …
The development of self-compacting concretes with electric arc furnace slags is a novelty in the field of materials and the production of high-performance concretes with these characteristics is a further achievement. To obtain these high-strength, low-permeability concretes, steel slag aggregates and cupola slag powder are used. To prove the …
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Ultra-high performance concrete design method based on …
This paper presents a design method for green ultra-high performance concrete (UHPC) through machine learning (ML) models and steel slag (SS) powder. First, different UHPC compressive strength ...
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Durability and Microstructure of Ultra-High Performance …
Durability and Microstructure of Ultra-High Performance Concrete Having High Volume of Steel Slag Powder and Ultra-Fine Fly Ash May 2011 Advanced Materials Research 255-260:452-456
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Improving the performance of ultra-high performance
Properties and microstructure of reactive powder concrete having a high content of phosphorous slag powder and silica fume. Construct. Build. Mater., 101 (2015), pp ... Potential of finely ground limestone powder to benefit ultra-high performance concrete mixtures. Construct. Build. Mater., 141 (2017), pp. 335-342. View PDF View …
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