Investigations on Alkali-Activated Slag/Fly Ash Concrete with steel
The present investigation is conducted to evaluate the effect of steel slag coarse aggregates on mechanical properties and fatigue behaviour of Alkali-Activated Slag Fly Ash Concrete (AASFC) mixes. AASFC mixes were prepared with steel slag coarse aggregates by replacing natural coarse aggregates at various replacement levels (0, 25, …
اقرأ أكثر
Compressive strength and corrosion behavior of steel bars
Waste slag from the metallurgical industry such as ferronickel slag (FNS) is a promising material to replace natural sand (NS) in the production of sustainable concrete. This study experimentally investigated the performance of concrete containing 50% FNS as well as the replacement of 15 and 30% of cement with FA by determining the slump, …
اقرأ أكثر
Fly Ash Processing Plant
The fly ash processing plant constructed by AGICO Cement is highly automated and mechanized, with low investment, high profit, simple structure and easy operation, which helps each region realize reasonable waste recycling and utilization to 'green up' users' supply chains. Raw Material.
اقرأ أكثر
Suitability of leaching test methods for fly ash and slag: A …
The WLT indicates the potential for contaminant release from fly ash or mixtures, but does not evaluate how a fly ash or fly ash mixture will impact groundwater (Bin-Shafique et al., 2002). Leaching of heavy metals from the dumped fly ash and steel slag may have negative impact on the environment should be reduced by leaching …
اقرأ أكثر
Recycling of Silicomanganese Slag and Fly Ash for …
In order to reduce the manufacturing cost of ed ceramics and expand the application scope of industrial solid waste, in this study, a new type of environment-friendly ed ceramics was prepared using direct high-temperature ing with waste silicomanganese slag (SMS) and fly ash (FA) as raw materials and silicon carbide (SiC) …
اقرأ أكثر
Alkali-Activated Controlled Low-Strength Material Utilizing …
For steel slag-based CLSM, the resilient modulus ranges from 250 to 350 MPa for dredged silts with 1.5% cement and 5% fly ash and utilized as sub-base materials (Chompoorat et al. 2021). ...
اقرأ أكثر
EXPERIMENTAL STUDY ON STABILIZATION OF EXPANSIVE SOIL USING STEEL SLAG
The use of fly ash as a stabilizer for SS base has been widely studied, as in LFSS [59], lime-fly ash stabilized steel slag and crushed stone [71], fly ash-steel slag soil [72], and fly ash-steel ...
اقرأ أكثر
what is fly ash in steel plant, why and how to make it to …
The fly ash produced in the steelmaking process replaces iron ore by processing into briquette to reduce the consumption of iron ore in the converter blowing process, thereby realizing the recycling of the by-products of the converter steelmaking. Tags : binder fly ash sludge. What is fly ash The steelmaking industry is a typical resource ...
اقرأ أكثر
Study on Compressive Strength and Water …
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 …
اقرأ أكثر
Comparison of the properties between high-volume fly ash …
The materials used in this study were Ordinary Portland cement with the strength grade of 42.5 complying with the Chinese National Standard GB 175-2007, low-calcium fly ash complying with the Chinese National Standard GB/T 1596-2005, ground basic oxygen furnace steel slag complying with the Chinese National Standard GB/T …
اقرأ أكثر
Fly ash application in soil for sustainable agriculture: an …
A huge quantity of fly ash (FA) that is being generated as a residue from the coal combustion process is nowadays considered as a challenging solid waste all around the globe. The FA production leads to various environmental problems due to the enormous area required for its proper disposal as well as heavy metal toxicity associated with it. A …
اقرأ أكثر
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 ...
اقرأ أكثر
Preparation of anorthite-based porous ceramics using high-alumina fly
The high-aluminum fly ash microbeads used in this study were supplied by a power plant in Inner Mongolia and the steel slag was procured from a steel mill in Shandong. Pulverized coal was used as pore forming agent. ... The sintering temperature is 1170 °C, the holding time is 120 min, the ratio of fly ash microbeads to steel slag is 6:4, …
اقرأ أكثر
Preparation of Reactive Powder Concrete Using Fly Ash and Steel Slag …
Supplementary cementitious materials (SCMs), such as fly ash (FA), ground granulated blast-furnace slag (GGBS) [33], silica fume (SF), metakaolin [34], limestone powder [35], steel slag powder [36 ...
اقرأ أكثر
Processing Ash and Slag Wastes from Thermal Power Stations …
Abstract. 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 …
اقرأ أكثر
Mechanical Properties and Microscopic Study of …
To address the geological hazard posed by unstable loess slopes prone to collapse and landslides, a high-strength geopolymer cementing material was developed …
اقرأ أكثر
Mechanical properties and mechanisms of fiber reinforced fly ash–steel …
The specific surface area of fly ash is about 369 m 2 /kg; Its chemical composition is shown in Table 1, mainly 22.40% of Al 2 O 3, 40.70% of SiO 2 and 9.46% of CaO, close to the high calcium fly ash (CaO > 10%), which is belong to Class C fly ash. Steel slag is the solid waste discharged from steelmaking, and its content is affected by …
اقرأ أكثر
Remediation Effects of Steel Slag and Fly Ash on Heavy …
The treatments of fly ash added at 20-40 g•kg-1 and steel slag at 3-6 g•kg-1 had the pH values within 5.5-7.0, and the Superscript textneutral and weakly acidic soil environment was suitable ...
اقرأ أكثر
Full article: A comprehensive review on coal fly ash …
Among the publications were nine review papers, the first on the use of alkali activated fly ash ground granulated blast furnace slag to replace cement in concrete mix (Panda et …
اقرأ أكثر
Recent applications of steel slag in construction industry
Steel slag and fly ash-based steel fiber reinforced geopolymer mortars have been prepared and studied for its mechanical properties where 0.4% and 0.5% of ... & Udayabhanu, G. (2015). Characterization of gypsum synthesized from LD slag fines generated at a waste recycling plant of a steel plant. New Journal of Chemistry, 39, …
اقرأ أكثر
Table 1 : Geotechnical Properties of Fly Ash and Steel …
Typical values of the steel slag aggregate and fly ash as obtained from steel plant in MIDC area Jalna and thermal power station Parli (v) respectively are given in Table 1. In …
اقرأ أكثر
World's first 'Steel-Slag Sand' plant
On the occasion of World Environment Day, JSW Steel dedicated the World's first 'Steel-Slag Sand' plant to the nation at JSW Steel Vijayanagar Works. The commissioned unit of 0.30 Mtpa capacity (821t/day) is one of its kind in the world, equipped with value-added technology, which will not only mitigate the slag disposal problem but also ...
اقرأ أكثر
Cleaner geopolymer prepared by co-activation of gasification coal fly
Synthesis and characterization of geopolymer composites based on gasification coal fly ash and steel slag. Construction & Building Materials, 211: 646–658. Article CAS ... This research was funded by the Jiangxi Academy of Water Science and Engineering Open Project Fund (No. 2021SKSG04); the National Natural Science …
اقرأ أكثر
Investigations on Alkali-Activated Slag/Fly Ash Concrete with steel
Investigations on Alkali-Activated Slag/Fly Ash Concrete with steel slag coarse aggregate for pavement structures, International Journal of Pavement Engineering, 18:6, 500-512, DOI: 10.1080 ...
اقرأ أكثر
Comparison of environmental impacts of fly ash and slag as …
Both fly ash and slag can improve concrete's resistance to chloride attack [45], an important long-term durability attribute of concrete. Although fly ash and slag are considered avoided wastes [43, 46], certain processing and preparation of these materials may necessitate additional energy and emissions, which must also be quantified [45]. As ...
اقرأ أكثر
An Overview of Utilization of Steel Slag
Feng [33] used the mixture of fly ash, steel slag powder and cement clinker to prepare composite cement and observed that a certain amount of steel slag admixture in cement could reduce the porosity, improve pore distribution and increase the consistency of cement. ... practice. Metal mine Res (in Chinese) 2010; 1:176-7. [10] Li K, Huang JB ...
اقرأ أكثر
Preparation of reactive powder concrete using fly ash and steel slag …
To decrease the cement and SF content of RPC by using ultra-fine fly ash (UFFA) and steel slag powder (SS), the effect of these mineral admixtures on compressive strength of RPC were investigated. The experimental results indicate that the utilization of UFFA and SS in RPC is feasible and has prominent mechanical performance. The …
اقرأ أكثر
Comprehensive utilization of steel slag: A review
1. Introduction. 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 …
اقرأ أكثر
Fly ash for sustainable construction: A review of fly ash …
FA, or pulverised fuel ash, is a byproduct of coal-fired power plants and is used as a mineral additive in cement and concrete. Fig. 1 shows a typical layout of a coal-burning generating station. Pulverized coal is blown into the burning zone of the furnace, where its combustible constituents, mainly carbon, hydrogen, and oxygen, ignite at …
اقرأ أكثر
Mechanical performance enhancement of recycled …
The pursuit of sustainable construction practices has led to a growing interest in the utilization of recycled materials in concrete production. To enhance the utilization of recycled aggregate concrete, its performance in terms of mechanical characteristics need to be optimized. This study investigates the effect of fly ash and …
اقرأ أكثر