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.
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 …
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 …
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.
Design and assessment of eco-friendly ultra-high …
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 …
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, …
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 …
Improving the performance of ultra-high performance
Request PDF | On Apr 1, 2023, Yannian Zhang and others published Improving the performance of ultra-high performance concrete containing lithium slag by incorporating limestone powder | Find, read ...
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 …
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 …
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 ...
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 …
Preparation of Ultra-High Performance Concrete Using Phosphorous Slag
Reactive powder concrete (RPC) is an ultra-high performance concrete (UHPC). Cement and silica fume content of RPC are generally rather high compared to the conventional concrete. The aim of this paper is to decrease the cement content of RPC by using phosphorous slag powder. Firstly the effect of grinding time on the activity index of …
Effect of Steel Slag Powder Content and Curing Condition …
In this paper, alkali activated materials ultra-high performance concrete (AAM-UHPC) was prepared by replacing GGBFS powder with different proportions of steel slag powder, and its workability ...
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.
Effectiveness of Fabricating High Performance Fiber …
In this work, a high performance fiber reinforced cementitious composite (HPFRCC) is fabricated using high volume steel slag powder as a supplementary cementing material. Two water to cementitious materials ratio (w/cm), 0.25 and 0.35 respectively, and four contents of steel slag, namely 0, 30%, 60%, and 80% (percentage …
Hydration kinetics and microstructure development of Ultra-High …
During the forming process of ultra-high performance concrete (UHPC), the duration of vibrating compaction plays a pivotal role in influencing its performance. ... Properties and microstructure of reactive powder concrete having a high content of phosphorous slag powder and silica fume. Construction and Building Materials, Volume …
A study of high-performance slag-based composite …
To promote the large-scale application of ground granulated blast furnace slag powder (GGBFS) in the cement and concrete industry, high-performance slag-based composite admixtures (SCAs) were prepared with GGBFS as the main raw material and converter steel slag powder (SS), limestone powder (LP) and fly ash (FA) as …
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 …
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 …
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.
Preparation of Ultra-High Performance Concrete Using Phosphorous Slag
By substituting phosphorous slag powder for a part of cement and keeping the water-binder ratio at about 0.14, UHPC specimens whose content of mineral admixtures, including phosphorous slag powder ...
Preparation and Performance Study of Slag-Waste …
In this study, ground granulated blast-furnace slag (GGBS) and waste marble powder (WMP) were used as precursors to prepare slag-waste marble powder-based …
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.
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
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.
Effect of Steel Slag Powder on the Chloride Permeability of High …
When fine steel slag powder is mixed into concrete as an active admixture, concrete properties will be greatly improved so as to produce High Performance Concrete (HPC). Resistance to chloride ...
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 …
Design and assessment of eco-friendly ultra-high …
Design and assessment of eco-friendly ultra-high performance concrete with steel slag powder and recycled glass powder. / Xu, Jing; Zhan, Peimin; Zhou, Wei et al. In: …
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 …