— 1. Introduction. Steel slag is a by-product of steel manufacturing [].Approximately 160 kg of steel slag is generated per ton of steel produced [].The common chemical compounds in steel slag are SiO 2, CaO, Fe 2 O 3, Al 2 O 3, and MnO [3, 4].The major mineral components of steel slag are C 3 S, C 2 S, C 4 AF, RO phase, and free …

After precipitation treatment, it can be used as steel slag dry powder mortar or used to prepare cement, steel slag powder, etc. ... comprehensive recycling technology of slag and complete set of equipment can not only realize water recycling, but also the purification grade of steel slag is high (TFe > 90%), and the taste of iron-containing ...

GROUND IRON AND STEEL SLAG BASED ON THE UNIFORM DESIGN T. S. He, Q. D. Chen, Z. B. Li, Y. Liu,1 UDC 539.4 X. G. Zhao, and S. Y. Zhao Ground iron and steel slag with excellent performance was prepared using the uniform test design. The influence of the fineness and content of steel slag powder on the fluidity and strength of the

Souvenir from Xinxiang Great Wall Steel Casting Co., Ltd. CEO and President director PT. KRNG Indonesia get a souvenir from xinxiang, for the inauguration of the Slag Powder Plant.

 — Steel slag powder was used widely in cement concrete industry and road construction to improve the workability and durability of cement concrete construction materials (Cui et al., 2016;Guo and ...

 — It is evident from Table 2 that the compressive strength and 2-h consistency-loss ratio of the mortar prepared from industrial solid waste were slightly inferior to those of commercial mortar but still met the requirements of the national standard GB/T 25181-2010. There were no significant differences in the setting times and water-retention rates.

 — Steel slag powder (carbonated in 99.9 vol% CO 2 with 0.1 MPa for 14 d, "vol%" refers to "the percentage of volume") was used to cast concrete [25], and its compressive strength is 5.3 times that of the one made with uncarbonated steel slag powder. It has been proven that carbonation degree is a vital factor that directly …

Four filler types, namely limestone filler (LF), steel slag powder (SSP), cement (CE), and slaked lime (SL) were used in this study. LF is widely used in asphalt mixtures, and is also used as a control group in this study. SSP was obtained by ball milling steel slag. CE and SL were used as traditional inorganic anti-stripping agents for comparison.

The use of steel slag (SS) in alkali-activated cement can reduce the carbon emission and cost of lightweight mortar. ... 60 % and 80 %. The water-to-dry material ratio in this study …

It follows the spirit of "quality of survival, the credibility of the development" business philosophy, and always stand in the forefront of the equipment and technology of dry powder mortar, and make due contributions to the …

Sustainability 2022, 14, 14951 3 of 19 Figure 1. Experimental flow chart. 2. Materials and Experimental Methods 2.1. Raw Materials P·O 42.5 Portland cement used in this study was produced by ...

 — Steel slag is an industrial solid waste with the largest output in the world. It has the characteristics of wear resistance, good particle shape, large porosity, etc.

 — 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 ...

The steel slag in China has its own characteristics. Problems arise due to a high content of tricalcium silicate, free calcium oxide and magnesium oxide and low non-crystal content and high crystal doping. Associated with this a poor volume stability of steel slag, and also the low added value make the practical use as an additive problematic. One possibility of …

 — Replacing half of the clinker by a blend of limestone powder and low-grade calcined clay (in 1:2 weight ratios) has been recently proposed to produce a new version of economical and green cement ...

 — Among them, the bacteria-CO 2 treated method of steel slag powder is independently developed by Southeast University, and the mineralized bacteria used in the modification process is Bacillus mucilaginosus (Rui and Qian, 2021; Rui and Qian, 2022; Qian and Zhang, 2021–07).Moreover, the process was successfully pilot-produced in a …

 — The cement industry is known for being highly energy-intensive and a significant contributor to global CO2 emissions. To address this environmental …

 — 1. Introduction. Steel slag is a by-product of steel manufacturing [].Approximately 160 kg of steel slag is generated per ton of steel produced [].The common chemical compounds in steel slag are …

To prepare the raw steel slag powder, the received steel slag lumps were placed in a steel ball mill and ground with a ball-to-space ratio of 13.27 vol%, a grinding duration of 20 min and a rotating speed of 60 r/min. After grinding, the steel slag powder was preserved in a sealed barrel to prevent interaction with the ambient atmosphere.

 — Sodium silicate powders with different SiO 2 /Na 2 O (silica modulus) were characterized by solubility rate, pH, and chemical structure (by 29 Si MAS-NMR) and compared in the preparation of one-part (or dry-mix) alkali-activated blast furnace slag mortar. The low SiO 2 /Na 2 O indicated the beneficial presence of less-polymerized …

 — Steel slag-slag composite powder (SSCP) has three exothermic peaks, which are the dissolution peak, hydration peak of steel slag and pozzolanic ash reaction peak of GBFS (after 85 h), respectively.

 — Everyone knows that dry mortar equipment can produce products such as putty powder, tile adhesive, masonry mortar, and self-leveling mortar. Consequently, dry mortar equipment is known by many names depending on the final product it delivers, such as wall putty manufacturing machine, tile adhesive manufacturing plant, and self-leveling …

 — The gradation of aggregate and the hydration reaction of cementitious materials are important factors affecting the performance of backfill materials. Steel slag powder (SSP) can be used as both aggregate and cementitious material according to different particle size. SSP has multiple influencing effects on coarse tailings cemented …

 — The workability and durability of a type of sustainable concrete made with steel slag powder were investigated. The hydrated products of cement paste with ground granulated blast furnace slag (GGBFS) alone or with a combined admixture of GGBFS-steel slag powder were investigated by X-ray diffraction (XRD). Furthermore, the mechanism …

 — Most of the dry-mix mortar products contain both mineral cementitious binder (e.g. OPC) and the polymer binder (e.g. re-dispersible powder) and they are normally packed in bags after mixing in the factory. Hence, the dry-mix mortar products are also known as Premixed or Pre-bagged Polymer Modified Cementitious Mortar. Dry Mix …

 — It is reported that the using steel slag powder in concrete can alleviate the expansion, but the mechanism in the UHSC system should be further studied. 5. Conclusions. This research focuses on recycling steel slag powder (SSP) as a supplemental cementitious material (SCM) to produce green UHSC materials by …

 — This paper reports the effect of water binder ratio on strength development of fly ash geopolymer mortar using dry geopolymer powder. Fly ash with high calcium content was used as primary material ...

 — PII 52.5 Portland Cement (PC) with loss on ignition (LOI) of 3.05% and specific surface area of 381 m 2 /kg, respectively, was used to prepare the cement pastes; the steel slag powder (SS) with LOI of 5.91% and specific surface area of 423 m 2 /kg, respectively, was used in this experiment. Fig. 1 presents the particle size distribution 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 …

 — 1. Dry mortar equipment shall be placed in a dry environment without any corrosive medium. Ensure the normal service life of the dry mortar equipment, Dry mortar equipment is generally made of carbon steel and sprayed with a layer of anti-rust paint, If placed for a long time in the environment of corrosive media or easy to rust. 2.