(PDF) Effect of copper slag and fly ash and Nano

The mixes were obtained with 0, 30 and 40 percent replacement of fine aggregate by steel slag besides using different percentage replacements (25% of cement by fly ash in three trials, 15% and 10% ...

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Mechanical Properties and Microscopic Study of Steel Slag–Fly Ash

To address the geological hazard posed by unstable loess slopes prone to collapse and landslides, a high-strength geopolymer cementing material was developed utilizing green steel slag–fly ash as its primary constituent and activated through the application of sodium silicate alkalinity. The mechanical properties and microstructure …

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Study on Compressive Strength and Water Permeability of Steel Slag-Fly …

In order to reduce stormwater runoff, permeable brick was prepared by compounding with fly ash and steel slag as the main substrate. The study found that the amount of steel slag has a significant influence on the compressive strength of permeable brick. When the proportion of steel slag is 6.5%, the compressive strength of permeable brick after 28 …

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Characterisation of LD slag of Bokaro Steel Plant and its …

The specific gravity and bulk density of LD slag samples were found to be high in comparison to fly ash samples. The EDS X-ray micro analysis showed that major elemental compositions of LD slag samples are O and Ca by weight. The XRF analysis showed that the major components of the LD slag samples are CaO, FeO and SiO 2. …

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Fly Ash, Slag, Silica Fume, and Natural Pozzolans, Chapter 3

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Long-term and accelerated swelling of steel slag-glass …

WEBThe main goal of this microscopic examination was: (i) to identify the expansion products, (ii) to observe the hydrated steel slag-fly ash matrix and, (iii) to determine the evidence …

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Enhancing Concrete Durability and Strength with Fly Ash, Steel Slag …

The effect of an alternative source of silica, based on class F fly ash mixed with blast furnace slag and activated by rice husk ash (RHA), to produce concrete exposed to marine environments was evaluated. Four mixtures activated by the combination of 85% NaOH 14M + 15% RHA were manufactured to achieve a liquid/solid ratio of 0.20. Fly …

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(PDF) Performance and life-cycle assessment of high-volume …

The present study discusses the performance of high-volume fly ash concrete (HVFAC) mixes containing slag sand which is a solid waste obtained from …

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Mechanical Properties and Microscopic Study of Steel …

To address the geological hazard posed by unstable loess slopes prone to collapse and landslides, a high-strength geopolymer cementing material was developed …

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Strength-Gain Characteristics and Swelling Response of Steel Slag …

Steel slag and fly ash are particulate industrial by-products generated in steel plants and power plants, respectively. In this study, the properties of steel slag, fly ash and a steel slag fly ...

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"Use of Soil-Steel Slag-Class-C Fly Ash Mixtures in …

In Indiana, the steelmaking industries and power plants generate large quantities of steel slag, blast furnace slag and fly ash every year. The excess of these underutilized industrial by-products are stockpiled and eventually landfilled at disposal sites. Use of steel slag, fly ash and blast furnace slag in road applications, such as in …

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Materials | Free Full-Text | Effect of Steel Slag on Hydration …

The effects of steel slag (SS) and fly ash (FA) on hydration heat, fluidity, setting time and rheological properties of alkali-activated slag (AAS) pastes with different silicate modulus (Ms) values were comparatively investigated. The results show that the incorporation of SS shortens the induction period, increases the cumulative hydration …

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(PDF) Characterisation of LD slag of Bokaro Steel Plant and …

Characterisation of LD slag of Bokaro Steel Plant and its feasibility study of manufacturing commercial 'fly ash–LD slag' bricks ... (Fly ash - 35% + LD slag - 30% + Gypsum - 5% + Quarry ...

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Geopolymer Concrete

Fly ash is the waste product generated from thermal power plant and ground granulate blast furnace slag is generated as waste material in steel plant. Both fly ash and GGBS are processed by appropriate technology and used for concrete works in the form of geopolymer concrete. The use of this concrete helps to reduce the stock of wastes and …

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Effect of Steel Slag on the Properties of Alkali-Activated Slag

Slag and fly ash (FA) are mostly used as precursors for the production of alkali-activated materials (AAMs). FA is the waste discharged by power plants, while slag and steel slag (SS) both belong to the iron and steel industry. The effects of SS and FA on the strength, microstructure, and volume stability of alkali-activated slag (AAS) materials …

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Investigation on the application of steel slag–fly ash…

The fly ash was obtained from Wuhan Qingshan Thermoelectric Plan, the specific surface area of this fly ash is 293 m 2 /kg, the apparent density is 2210 kg/m 3, its chemical compositions are listed in Table 1, its particle size distribution is illustrated in Fig. 2.. The phosphogypsum was obtained from Wuhan Inorganic Salt Chemical Plant, its …

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Production of Lightweight Aggregates from Coal …

The samples were examined as cylindrical specimens of 2mm diameter, 4 mm of height, made of as received fly ash and milled slag as fine powder of particle size <50 μm. …

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Processing Ash and Slag Wastes from Thermal Power Stations …

For existing coal-fired power plants, current methods of utilizing ash and slag waste may be considered in addressing new environmental and economic risks. However, for new power sources, environmental considerations are much more important in selecting the coal-combustion technology. Technology based on a circulating fluidized …

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JSPL's Angul plant to become world's largest single-location steel

The complex will also house a 12.5 MTPA cement plant to utilize the Blast Furnace Slag and Fly Ash to produce environment-friendly, Green cement. JSPL's Vision 2030 for 25.2 MTPA steel capacity at Angul also entails substantial investments to develop the iron ore and coal mineral industry and build a world-class logistics infrastructure.

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The Environmental Benefits of Fly Ash in Construction

Fly ash is produced by coal-fired electric and steam-generating power plants. Generally, coal is pummeled and blown with air into the boiler's combustion chamber, where it immediately fires up, creating heat which produces a molten mineral buildup. ... also known as bottom ash or slag, fall to the bottom of the combustion …

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Effective Utilization of Fly Ash and Steel Slag for Partial

As the fly ash content is increased, the setting time of concrete is seen retarding relatively. On replacing steel slag by 10, 20 and 30% of the weight of fine aggregate, the optimum percentage of steel slag is found by maintaining fly ash percentage as 20%. When sand is replaced with 10% steel slag, the compressive …

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Eastern India's Steel Production Set for Major Expansion

Jindal Steel and Power Limited's 6 MTPA existing Integrated steel plant from the proposed capacity of 18.6 MTPA to 25.2 MTPA with an investment of Rs. 24,652 crore to be set up in Angul. This investment will take JSPL's total investment to Rs. 1,00,670 crore, making it the largest single-location steel plant capacity in the world.

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Use of Fly Ash and Slag in Concrete: A Best Practice Guide

The fly ash from a given power plant may vary with time ... corrosion protection for the reinforcing steel (4). Fly ashes will ... 4.4 Examples of projects using fly ash and slag in concrete ...

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Performance and life-cycle assessment of high-volume fly …

This study examined the effects of siliceous fly ash and steel slag sand on the performance of normal concrete mixes by conducting multiple tests related to …

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Study on the mechanical properties and water stability of steel slag …

Modification of fly ash geopolymer with steel slag: Preparation of steel slag-fly ash geopolymer paste using steel slag andvarying dosages of NaOH-Na2SiO3 as variables. The study aims to investigate the workability, strength, and strengthening mechanismof this paste material, as well as to assess its mechanical properties and …

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Performance and life-cycle assessment of high-volume fly ash …

In this study, nine concrete mixes were produced using raw materials that include 53 grade ordinary Portland cement (OPC), siliceous fly ash (FA) sourced from an anthracite coal-based Indian thermal power plant (Chennai city), potable water, polycarboxylate ether (PCE)-based superplasticizer (SP), slag sand (SS) and crushed …

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Amelioration Effect of Fly Ash and Powdered Ground Steel Slag …

Te utilization of fy ash (FA) and powdered granulated steel slag (PGSS) as additives in soil stabilization plays a crucial role in environmental, economic, and weak soil property improving advantages.

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Industrial wastes: Fly ash, steel slag and phosphogypsum

Few scientific studies revealed the potential impact of Steel slag (SS) on the GHG emissions from the agricultural soils (Singla et al., 2015, Gwon et al., 2018, Wang et al., 2018a, Das et al., 2019) CH 4 and N 2 O emissions are strongly managed by the rate of SS application.SS contains a high concentration of free and active oxides of silica, iron, …

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Comprehensive Utilization Technology of Steel Slag

Steel slag is used as a sintering fluxing agent in many enterprises of China. For example, in the sintering plant of the Shougang Group, 4% of steel slag is added into sintered ore per ton and in the Taiyuan sintering plant, 6% of steel slag is added, achieving better effects. After a long practice time, the main advantages include [47,48,49]: ①

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Studies on the Volumetric Stability and Mechanical …

Steel slag from a steel plant in Liaoning Province, China was used for the construction of the cement-stabilized steel slag base course. ... In addition, the number and the description of bulges of the materials were recorded. Cement-fly-ash-stabilized steel slag with fly ash additions of 0, 10%, 20%, 30%, 40%, 50% and 60% (0FASS, 10FASS ...

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Steel slag and its applications in cement and concrete technology…

For the last few decades, many SCMs, such as limestone (L) [12,13] fly ash (FA) [14], steel slag (GGBFS) [15], micro-silica (MS) [16], volcanic ash [17] (VA), metakaolin (CC) [18], rice husk ash ...

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