Early-age behaviour and cracking potential of fly ash …
— This paper describes an experimental study that investigated the influence of ultrafine fly ash (UFFA), a relatively new pozzolanic admixture, on the early age stress …
Removal of hazardous metals from MSW fly ash--an evaluation of ash
— DOI: 10.1016/j.jhazmat.2009.08.094 Corpus ID: 3461106; Removal of hazardous metals from MSW fly ash--an evaluation of ash leaching methods. @article{Fedje2010RemovalOH, title={Removal of hazardous metals from MSW fly ash--an evaluation of ash leaching methods.}, author={Karin Karlfeldt Fedje and Christian …
Extraction of metals from municipal solid waste incinerator fly ash …
— This bottom ash complied with the legal limits for non-hazardous waste landfills, thereby demonstrating the potential of the investigated method to transfer hazardous waste (MSWI fly ash) into non ...
Incineration of Pelletized Fly Ash in a Bench-scale …
the fly ash at the post-combustion zone. The environmental impact of the co-treatment of municipal solid waste incinerator (MSWI) fly ash with a combustible hazardous waste is lower than that of the thermal treatment of MSWI fly ash in a separate furnace (Huber et al., 2018b). Re-burning using the original incineration system is proposed
Magnesia Modification of Alkali-Activated Slag Fly Ash …
— shown in Tabl e 1; Fly ash: Fly ash used in this test was obtained from Y angluo Power Plant, a nd its chem ical composition was show n in Table 1; Activator: A wa-
A novel process utilizing subcritical water and nitrilotriacetic …
— It can also be seen from Fig. 1 that silicon is inefficiently extracted in the extraction process, e.g., approximately 6% of silicon was extracted from the pre-treated ash by NTA under room conditions, and 2% was extracted in the SC water + NTA treatment. These results are consistent with a previous report (Hong et al., 2000).However, as …
Fly ash properties, characterization, and applications: A review
— Fly ash can be modified or transformed into new materials for heavy metal ions adsorption. The high content of Al 2 O 3 and SiO 2 in class F fly ash make it …
A note on further refinements to a procedure for the …
This paper describes improvements to a previously published technique for the extraction of carbonaceous fly-ash particles from sediments. By using test-tubes in a water-bath rather than beakers on a hot-plate, the number of simultaneous preparations that can be done is increased and the length of time spent on the preparations and the amounts of …
Validation on fly ash DEM microparameters based on coarse …
— By examining parameters such as magnification, stiffness, sliding friction coefficient, and rolling friction coefficient, we establish the relationship between fly ash …
Modified Time of Setting Test for Fly Ash Paste and Fly …
ASTM D 5239-04 (2004) uses a series of test methods to determine the characteristics of fly ash. For the time of setting property, ASTM recommends a water-to-ash weight ratio of …
Effects of medical waste incineration fly ash on the …
— Incineration is an effective method for waste disposal worldwide because of its significant weight reduction and harmless effects on humans and the environment (Lu et al., 2017).Incineration accounts for more than 90% of medical waste (MW) in the European Union, the United States, and Japan (Singh et al., 2021).According to the data of the …
A strength-based mix design method of fly ash concrete …
Using fly ash (FA) and superabsorbent polymer (SAP) in construction promotes sustainability by reducing cement consumption and enhancing concrete durability. However, the mix design of FA concrete with SAP has to be improved due to the uncertainty of entrained water content and early strength (0–28 days). To fulfill this objective, a …
A Data-Driven Influential Factor Analysis Method for Fly …
— To address this problem and explore the influence patterns of those factors, this study developed an ensemble machine learning modeling method that integrated …
Effect of cooling methods on residual compressive strength …
At 800 °C, all fly ash concretes that are exposed to rapid cooling showed the most severe cracking. X‐ray diffraction analysis shows reduction of Ca(OH) 2 peak and formation of new calcium silicate peak in concretes containing 20% and 40% fly ash when subjected to 800 °C in both cooling methods. Thermo gravimetric analysis and differential ...
Comparative Study of Experimental and Modeling of Fly Ash …
— This research aims to compare the result of compressive strength (C-S) obtained from the experimental method and results estimated by employing the various …
Performance of sustainable ternary blended cement …
DOI: 10.1016/j.jobe.2023.108301 Corpus ID: 266271116; Performance of sustainable ternary blended cement containing municipal solid waste incineration fly ash coupled with slag, coal fly ash or metakaolin
Enhancing alkali-activated materials with low quality fly ash: …
— Table 7 shows a complete phase analysis of commercial fly ash (Type F). More details about the method can be found in another study (Mirmoghtadaei ... (Mirmoghtadaei and Shen, 2020), LQCA fly ash had satisfactory percentages of reactive silicate and alumina, which were essential for alkali-activation. Based on XRF results, …
Preparation of Graphene ‐ Like Carbon Composites (GCC) …
— In this paper, fly ash (FA) was prepared into graphene - like carbon composite (GCC) by calcination method and Hummer method, which had good adsorption performance to remove lead ions in wastewater. Subsequently, the adsorbent was recovered and recycled, and the sulfuric acid in the waste liquid was recovered.
Modeling and optimization of fly ash–slag-based …
— Semantic Scholar extracted view of "Modeling and optimization of fly ash–slag-based geopolymer using response surface method and its application in soft soil stabilization" by Keyu Chen et al. ... {Keyu Chen and Da Zhi Wu and Zilong Zhang and Chonggen Pan and Xinyuan Shen and Linling Xia and Jia Xin Zang}, …
Extraction of metals from municipal solid waste incinerator fly ash …
— Section snippets Experimental. Fly ash was obtained from a MSW incineration plant in Nagoya, Japan. The plant has two 24 h running large-scale PLC based incinerators, and the furnace of each incinerator is design to dispose more than 5-tonne refuse per hour.The furnace room temperature is sustained within 850–1000 °C.The fly …
Sales Brochure Carbon-In-Ash Instrument Real-time …
ABB's carbon-in-ash instrument calculates carbon in grams per cubic meter, utilizing a separate set of electro-dynamic dust probes to measure the fly ash loading. Competing methods for measurement of unburned carbon in boiler fly ash are deficient in several regards: – they are mostly extractive. A specified quantity of fly ash
Repeated impact resistance of steel fibre-reinforced dry …
DOI: 10.1016/jpstruct.2023.117274 Corpus ID: 259198035; Repeated impact resistance of steel fibre-reinforced dry UHPC: Effects of fibre length, mixing method, fly ash content and crumb rubber
Rapidly Measuring Unburned Carbon in Fly Ash Using …
— When the Fe peak at 248.016 nm was negligible, the interference of Fe 247.857 nm was minimized for C 247.856 nm detection (Glumac et al., 2010).
A strength-based mix design method of fly ash concrete with
— A strength-based mix design method of fly ash concrete with superabsorbent polymer based on Powers' model. Chao Yao, A. Shen, +3 authors. Yinchuan Guo. …
Investigation on the application of steel slag-fly ash …
— DOI: 10.1016/j.jhazmat.2008.07.125 Corpus ID: 36549501; Investigation on the application of steel slag-fly ash-phosphogypsum solidified material as road base material. @article{Shen2009InvestigationOT, title={Investigation on the application of steel slag-fly ash-phosphogypsum solidified material as road base material.}, author={Weiguo …
Validation on fly ash DEM microparameters based on coarse-grained method
— This research utilizes the coarse-grained method to amplify particles and examines the impact of linear models on the mechanical of fly ash. By examining parameters such as magnification, stiffness, sliding friction coefficient, and rolling friction coefficient, we establish the relationship between fly ash cohesion, internal friction angle ...
Experimental investigation on the high-volume fly ash …
DOI: 10.1016/j.jobe.2022.105163 Corpus ID: 251782151; Experimental investigation on the high-volume fly ash ecological self-compacting concrete @article{Shen2022ExperimentalIO, title={Experimental investigation on the high-volume fly ash ecological self-compacting concrete}, author={Weiguo Shen and Zhengqi Zhang and Jiangwei Li and Zhenghao Li …
A strength-based mix design method of fly ash concrete with
Using fly ash (FA) and superabsorbent polymer (SAP) in construction promotes sustainability by reducing cement consumption and enhancing concrete durability. …
The mechanical properties of fly ash-based geopolymer …
— It is revealed from the review that various manufacturing methods enhance geopolymers, especially in geopolymer concrete, where replacing 50% of ordinary …
Effects of medical waste incineration fly ash on the …
— @article{Shen2021EffectsOM, title={Effects of medical waste incineration fly ash on the promotion of heavy metal chlorination volatilization from incineration residues.}, author={Wei-Lung Shen and Nengwu Zhu and Yunhao Xi and Jun-li Huang and Fei Li and Ping-xiao Wu and Zhi Dang}, journal={Journal of hazardous materials}, year={2021}, …
Breakthrough analysis of carbon dioxide adsorption on …
— Zeolite (FAZ) was synthesized by the fusion method using coal fly ash to adsorb carbon dioxide. The experimental adsorption was operated batchwise in a laboratory-scale packed-bed adsorber to obtain the breakthrough curves of CO2 under conditions such as adsorption temperatures (20–80 °C), flow rates of gaseous mixture of …
High calcium fly ash geopolymer stabilized lateritic soil and
— Both class F and class C Fly Ash (FA) as precursors have been extensively used for the development of geopolymers [19], [20], [21]. The class C FA contains high calcium oxide (CaO) and is designated as a self-cementing FA. The Class C Fly ash has been used for making concrete and soil stabilization without cement [22], [23], [24]. The …
Effects of fly ash and limestone powder on the paste …
— A calculation method for the prediction accuracy based on the figure area was introduced in a previous study [26]. The absolute and relative accuracies can be expressed as follows: β = S (S C C z o n e ∩ S C P z o n e)-S (S C P z o n e-S C C z o n e) S S C C z o n e β ' = S (S C C z o n e ∩ S C P z o n e) S S C C z o n e. In the above, β ...
A Study on the Effect of Low Calcium Ultra-fine Fly Ash as a …
— The aim and scope of the present study were to determine the efficacy of UFFA in evaluating the workability, static and dynamic stabilization properties, retention period, and slump loss of SCC systems in their fresh state, as well as their compressive strength at various ages. Microstructure (SEM and XRD) of blended SCC systems were …
OPTIMIZING FLY ASH USE IN INDIA: …
In India, more than 100 million tonnes of fly ash are produced each year, with ash ponds occupying 65000 acres of land. Such a large dosage presents difficult issues in terms of land usage, health ... o Disposal methods of fly ash Characterization of different types of fly ash. o Based on their physical and chemical properties.