Revealing the intrinsic sintering mechanism of high-strength ceramsite …
DOI: 10.1016/j.ceramint.2024.04.158 Corpus ID: 269192887; Revealing the intrinsic sintering mechanism of high-strength ceramsite from CFB fly ash: focus on the role of CaO @article{Wang2024RevealingTI, title={Revealing the intrinsic sintering mechanism of high-strength ceramsite from CFB fly ash: focus on the role of CaO}, author={Xuxu …
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Preparation and characterization of ultra-lightweight ceramsite …
Considering the energy consumption in the sintering process and the physical properties of ceramsite, the sintering temperature was controlled at 1100 °C in the subsequent research. ... Preparation of high-strength ceramsite from red mud, fly ash, and bentonite. Ceram. Int., 47 (13) (2021), pp. 18218-18229, …
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Frontiers | Investigations on the preparation of ceramsite …
Ceramsite with a sintering-expanded surface is prepared. ... The chosen samples were roughly crushed and pulverized in a laboratory grinding machine for 5 min and then dried in an oven at 80°C until reaching a constant weight. ... and expansion performance of ceramsite filter media from dewatered sewage sludge, coal fly ash, and …
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Effect of sintering temperature on the characteristics of sludge ceramsite
In order to investigate the effect of sintering temperature on the characteristics of sludge ceramsite and find an optimal sintering temperature, dried sewage sludge, clay, and water glass were mixed at ratios of dried sewage sludge/clay. = 33% and water glass/clay = 15%.. Then these mixtures were heated to 850, 900, 950, …
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Killing two birds with one stone: Preparation of ceramsite …
DOI: 10.1016/j.conbuildmat.2023.134039 Corpus ID: 265931461; Killing two birds with one stone: Preparation of ceramsite high-strength lightweight aggregate via co-sintering of dredged sediment and municipal solid waste incinerated fly ash
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Preparation and characterization of ceramsite from lime …
The XRD patterns of raw materials are shown in Fig. 1.Calcium carbonate (CaCO 3) is identified as the major crystalline phase of lime mud.Quartz (SiO 2), mullite (3Al 2 O 3 ·2SiO 2) and glassy phase are present as the prominent components of coal fly ash (Fig. 1 a). Shale consists of quartz while perlite and diatomite contain amorphous silica …
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Manufacturing non-sintered ceramsite from dredged
Green and low-carbon materialization for dredged sediment (DS) is limited due to its low pozzolanic activity. In this study, a novel DS-based non-sintered lightweight aggregate (LWA) is developed by steel slag (SS) and fly ash (FA) activation. Process optimization is performed by the response surfaces, and the basic properties and characterization of …
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Preparation of high-strength ceramsite from red mud, fly ash…
Under the optimal synthetic conditions (RM:fly ash:bentonite = 60:30:10, preheating temperature of 450 °C, preheating time of 10 min, sintering temperature of 1150 °C, and sintering time of 25min), the ceramsite exhibited a high compressive strength of 21.01 MPa, 1-h water absorption of 1.21%, and bulk density and apparent density were …
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Preparation, optimization, and application of sustainable ceramsite …
In this paper, a sustainable ceramsite substrate material for phosphorus immobilization in CWs was prepared by using coal fly ash and waterworks sewage as the main material, and oyster shell as the functional additive. The performance and mechanism of phosphorus adsorption onto the prepared ceramsite were systematically investigated.
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Preparation of high-strength ceramsite from red mud, fly …
High-strength ceramsite was prepared from red mud, fly ash, and bentonite without any other chemical additives by a two-stage sintering process. In addition, the …
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Preparation of Lightweight Ceramsite from Solid Waste …
Qin, J. et al. used lime, coal fly ash, and various different additives (shale, perlite, diatomite, and sawdust) to prepare ceramsite, and analyzed the impacts of the sintering temperature and lime mud content on the physical properties of ceramsite. The results showed that anorthite was the major phase of ceramsites, except for ceramsite …
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Review Preparation of ceramsite from municipal sludge and …
Compared with fly ash ceramsite, the raw materials of sludge ceramsite are widely distributed (Xie et al., 2021; Zhao et al., 2020). ... XRD, and the semi-quantitative analysis method of XRD, was conducted to investigate the sintering process of ceramsite. The results verified that during the high-temperature sintering, ...
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Preparation and characterization of ceramsite from lime …
After sintering at 1050 °C, ceramsite with 40 wt% lime mud, 55 wt% coal fly ash and 5 wt% diatomite showed the optimal bulk density of 0.74 g/cm 3, 24 h-water absorption of 39.03%, apparent porosity of 49.49% …
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Preparation of municipal solid waste incineration fly ash/ …
The ceramsite was successfully produced using MSWI fly ash and granite sawing mud. The raw material ratio and sintering condition of ceramsite was optimized. Chlorine in MG ceramsite mainly enters into the tail gas and secondary fly ash. Chlorine salts are the main chlorine speciation after sintering.
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Co-utilization of iron ore tailings and coal fly ash for porous
The sintering treatment conditions, including the sintering temperature and sintering time, are important parameters that should be strictly controlled to achieve desirable ceramsite properties and manageable energy consumption (Cheng et al., 2018; Li et al., 2021c). The volume change of the S5 sample at different temperatures are …
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Co-utilization of iron ore tailings and coal fly ash for porous
Semantic Scholar extracted view of "Co-utilization of iron ore tailings and coal fly ash for porous ceramsite preparation: Optimization, mechanism, and assessment." by Penghui Guo et al. Skip to search form Skip to ... Influence of dextrin content and sintering temperature on the properties of coal fly ash-based tubular ceramic membrane for ...
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Research on Using Sludge to Manufacture Lightweight Ceramsite …
Abstract. Lightweight sludge ceramsite was manufactured using dewatered sludge from municipal sewage treatment plants as the main raw material, complemented by fly ash and clay ingredients. The results indicate that the sintering temperature on the ceramsite's performance impacts the most. Sludge ratio has certain influence on the …
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Preparation of municipal solid waste incineration fly ash …
The results show that the solidified matrix containing 40% fly ash and 60% cement with heavy metal sludge was the formulation that has the highest fly ash content with a satisfactory strength and was able to immobilize the heavy metals both found in theFly ash and sludge based on the toxicity characteristic leaching procedure (TCLP) …
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Preparation of high-strength ceramsite from red mud, fly …
This study aimed to develop a novel filtering medium ceramic aggregate prepared using municipal solid waste incineration (MSWI) fly ash and the fuel ash from coal power …
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High-Strength Ceramsite Made with Sludge and Low-Quality Fly Ash
High-strength sludge ceramsite was made with a silt–fly ash–waste glass powder of 60∶35∶5 under a firing system with a preheating temperature of 600°C, a warm-up time of 20 min, a calcination temperature of 1,150°C, and a roasting time of 15 min. ... Revealing the intrinsic sintering mechanism of high-strength ceramsite from CFB fly ...
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Preparation of coal gangue ceramsite high-strength …
In this test, 42.5R ordinary Portland cement was used as the concrete cementitious material, and an appropriate amount of fly ash was added. Local river sand was used as the fine aggregate of ...
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Preparation, sintering behavior, and expansion performance of ceramsite
Preparation, sintering behavior, and expansion performance of ceramsite filter media from dewatered sewage sludge, coal fly ash, and river sediment Li, Tianpeng; Sun, Tingting; Li, Dengxin; Abstract. Publication: Journal of Material Cycles and Waste Management ...
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Co-utilization of iron ore tailings and coal fly ash for porous
Subsequently, orthogonal tests were performed to investigate the influence of fly ash, NaOH, and aluminum powder on the mechanical properties of non-sintering ceramsite. Finally, the alkali excitation mechanism was elucidated through X-ray diffraction and SEM electron microscope scanning.
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Technology Innovation in Incinerator Fly Ash Sintering and …
Abstract. Municipal solid waste incinerator fly ash (IFA) reutilization is energy-intensive with expenditure and secondary fly ash (Sec-FA) generation. …
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A novel approach to preparing ultra-lightweight ceramsite
The most common method of fly ash disposal is solidification-stabilization-landfill, and the most common reuse is low-value-added building materials. A novel …
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Preparation of high-strength ceramsite from red mud, fly …
In this study, RM and fly ash were successfully reused to prepare high-strength ceramsite without any chemical additives, and the effects of raw material mass …
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Preparation of glass-ceramics via co-sintering of coal fly ash …
The compressive strength of the prepared ash microcrystalline glass can meet the requirements of GB/T19766–2016 "Natural Marble Building Panel" (≥50 MPa) when the addition amount of fly ash is 10–40% and the sintering temperature is 850–1085°C; among them, the chemical corrosion resistance of the prepared product …
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Ceramsite made from drinking water treatment residue for …
Sintering temperature and time of 650 °C and 60 min / Used as phosphorus adsorbent with the best adsorption capacity of 10.2 mg/g. Shen et al. (2018a) Coal fly ash: DWTR: oyster shell = 6:4:0.8 Preheating temperature and time of 600 °C and 30 min Sintering temperature and time of 1050 °C and 8 min Grain size of 6–8 mm
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Preparation and characterization of ceramsite from lime …
Qin, J. et al. [6] used lime, coal fly ash, and various different additives (shale, perlite, diatomite, and sawdust) to prepare ceramsite, and analyzed the impacts of the sintering temperature and ...
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The effect of sintering temperature on cavitation erosion in …
The incombustible portion of coal that remains after burning is known as bottom or fly ash, and it has a detrimental influence on the environment. One of the possible alternatives for reducing the amount of ash deposited in landfills might be the production of useful glass–ceramic from vitrified fly ash. Glass–ceramic was …
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