MTW European Type Trapezium Mill
Input size:30-50mm
Capacity: 3-50t/h
LM Vertical Roller Mill
Input size:38-65mm
Capacity: 13-70t/h
Raymond Mill
Input size:20-30mm
Capacity: 0.8-9.5t/h
Sand powder vertical mill
Input size:30-55mm
Capacity: 30-900t/h
LUM series superfine vertical roller grinding mill
Input size:10-20mm
Capacity: 5-18t/h
MW Micro Powder Mill
Input size:≤20mm
Capacity: 0.5-12t/h
LM Vertical Slag Mill
Input size:38-65mm
Capacity: 7-100t/h
LM Vertical Coal Mill
Input size:≤50mm
Capacity: 5-100t/h
TGM Trapezium Mill
Input size:25-40mm
Capacity: 3-36t/h
MB5X Pendulum Roller Grinding Mill
Input size:25-55mm
Capacity: 4-100t/h
Straight-Through Centrifugal Mill
Input size:30-40mm
Capacity: 15-45t/h
Aged fly ash slag
Carbonation behavior of aged alkaliactivated fly ash/slag binder
2024年5月30日 These results indicate that MgO incorporation into alkaliactivated fly ash/slag has the potential to retard carbonation damage and enhance the mechanical strength of 90day aged binders Moreover, M75C exhibited a maximum compressive strength of 86 MPa, 2019年10月1日 Lowcalcium (FA) and highcalcium (HCFA) fly ash and granulated blast furnace slag (GBFS) are the most widely known, standardized and used SCMs in the composition of Fly ash and slag ScienceDirectThey used three types of fly ash with diferent CaO contents, and the concrete samples were treated under an accelerated carbonation environment for up to 450 days [14] It was Carbonation behavior of aged alkaliactivated fly ash/slag binder 2 天之前 The most commonly used onepart AAC are GBFS and fly ash (FA) GBFS is the most commonly used raw material for AAC production AAC derived from GBFS possess a dense Fly ash sinking beads and slag based onepart alkaliactivated
Carbonation behavior of aged alkaliactivated fly ash/slag binder
This study focused on characterizing the carbonation behavior of 90day aged alkaliactivated fly ash/slag blended by MgO Effects of MgO reactivity on the carbonation behavior of the 2022年4月4日 To study the factors influencing the strength of slag based alkaliactivated materials (BFSAAM), fly ash based alkaliactivated materials (FAAAM), slag, and fly ash Review A review: Reaction mechanism and strength of slag and fly 2 天之前 The preparation of ambientcured fly ashbased geopolymer mortar (FAGM) with high strength by utilizing the high chemical reactivity of slag is key to realizing the sustainable and efficient application of solid waste resources Internal Curing Effects of Slag on Properties and 2 天之前 The MSWI fly ash and slag were mixed at a ratio of 2:3, and 3% of the modified water glass was mixed with the alkali equivalent as the calculation standard, where the water glass modulus was 1Creep characterisation and microstructural analysis of
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Carbonation behavior of aged alkaliactivated fly ash/slag binder
2024年5月30日 This study focused on characterizing the carbonation behavior of 90day aged alkaliactivated fly ash/slag blended by MgO Effects of MgO reactivity on the carbonation 2022年5月10日 Four industrial wastes, ie, blast furnace slag, steel slag, desulfurization ash, and phosphoric acid sludge, were used to prepare a lowcarbon binder, metallurgical slagbased cementitious material (MSCM)Solidification/Stabilization of MSWI Fly Ash Using a 2023年5月25日 Traditional silicate cement materials produce a large amount of CO2 during production, making it urgent to seek alternatives Alkaliactivated slag cement is a good substitute, as its production process has low carbon Study on Shrinkage in AlkaliActivated Slag–Fly Ash2021年12月3日 A mixture of coal bottom ash and slag, with a fraction of fly ash (CAFAS) from steam locomotives, was placed in the cave Divaška jama to delimit and level tourist trails Emplacement began in Characteristics and impact of aged coal ash with slag emplaced in
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Geotechnical Properties of Fresh and Aged Basic
2015年10月31日 The geopolymer mortar specimens with the optimized molarity are then investigated for the effective utilization of fly ash and slag as alumina silicate source material in various proportions such 2024年5月30日 This study focused on characterizing the carbonation behavior of 90day aged alkaliactivated fly ash/slag blended by MgO Effects of MgO reactivity on the carbonation behavior of the synthesized Carbonation behavior of aged alkaliactivated fly ash/slag binder 2013年5月12日 Alkaliactivated slag concretes stored for 7 years under atmospheric conditions are assessed, and the structural characteristics of naturally carbonated regions are determined Concretes formulated with a 400 kg/m3 and water/binder (w/b) ratio between 042 and 048 present similar natural carbonation depths, although these concretes report different Natural carbonation of aged alkaliactivated slag concretes2019年10月1日 Lowcalcium (FA) and highcalcium (HCFA) fly ash and granulated blast furnace slag (GBFS) are the most widely known, standardized and used SCMs in the composition of cement and concrete In the last 4 years, scientific work has focused on improving binder properties (eg long setting time, Fly ash and slag ScienceDirect
Carbonation behavior of aged alkaliactivated fly ash/slag binder
This study focused on characterizing the carbonation behavior of 90day aged alkaliactivated fly ash/slag blended by MgO Effects of MgO reactivity on the carbonation behavior of the synthesized binders were explored A 03% CO 2 concentration was adopted for an accelerated carbonation environment2024年11月8日 This study investigated the mechanical properties and toughness of slag/fly ashbased alkaliactivated cementitious materials (AASF) by incorporating PAM with different molecular weights and dosages After the specimens aged 28 days were crushed, Toughness study of polyacrylamidemodified slag/fly ashbased 2024年3月5日 As indicated in Table S3, for the untreated MSWI fly ash, the F1 proportions of Pb and Zn were notably high, reaching 951% and 2089%, respectively, while the F5 proportions were significantly low at 659% and 323% This implied a substantial risk of Pb and Zn leaching for the untreated fly ash, underscoring the importance of stabilizationEffect of longterm dry–wet circulations on the Solidification 2022年5月10日 The MSCM paste achieved 28day strength of 352 MPa, showing its highhydration reactivity While the fly ash content was as high as 80 wt%, the 28day strength of MSCMfly ash blocks reached 22 MPa, and the leaching concentrations of Pb, Zn, Cr, and Hg were much lower than the limit values of the Chinese landfill standard (GB 168892008)Solidification/Stabilization of MSWI Fly Ash Using a Novel MDPI
Performance Evaluation and Microstructure Characterization
2019年7月26日 AbstractThis paper investigates the performance of steel fiber–reinforced alkaliactivated slag concrete incorporating different fly ash replacement percentages Three different molarities of sodium hydroxide (SH) were combined with sodium silicate to 2014年4月1日 Alkaliactivated slag concretes stored for 7 years under atmospheric conditions are assessed, and the structural characteristics of naturally carbonated regions are determined Concretes formulated with a 400 kg/m3 and water/binder (w/b) ratio between 042 and 048 present similar natural carbonation depths, although these concretes report different Natural carbonation of aged alkaliactivated slag concretesFly ash and Slag will typically be 18% cheaper than Portland cement When a mix includes 20% fly ash, this will provide savings of 35% in cost The advantage of slag is its ability to substitute more of cement Giving savings of up to 9% in Why use Fly Ash and Slag in Concrete? BayLynx 2013年11月1日 In activated fly ash/slag blends, two distinct gels (C–A–S–H and N–A–S–H) are formed; under accelerated carbonation, the N–A–S–H gel behaves comparably to fly ashbased systems, and the observations of the performance of existing aged structures in serviceGel nanostructure in alkaliactivated binders based on slag and fly ash
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Fly Ash and BOF Slag as Sustainable Precursors for Engineered
2023年11月28日 A 40% fly ash replacement with BOF slag resulted in an average strength that was 39% higher than the combination with 100% fly ash However, the strength growth decreased after a 10% replacement Analysis of variance was conducted using the design of experiments methodology to determine the significance of the parameters and their interactions2024年10月24日 Saline soils are always treated as waste materials due to the salt in the soil deteriorating the soil structure, decreasing the strength, and causing salt expansion Especially for largescale urbanization in developing countries, how to use the waste saline soils to realize resource utilization, decrease construction costs, and further reduce carbon emissions are the Combined utilization of slag, fly ash, and polyacrylamide for 2019年2月27日 However, these predictions do not take into account the positive effect of the continuing hydration of slag and flyash particles over a longer timeIn this study, accelerated carbonation tests (PDF) Carbonation mechanism of alkaliactivated fly ash and slag Download Citation On Oct 25, 2024, Tung Doan and others published Compaction Properties of AlkaliActivated Fly Ash and Slag Blends with Demolition Wastes Find, read and cite all the research Compaction Properties of AlkaliActivated Fly Ash and Slag
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Compressive strength development and shrinkage of alkaliactivated fly
2015年8月15日 This study reports the changes in the compressive strength and shrinkage property of alkaliactivated fly ash and slag (AAFS) blends associated with efflorescence2022年7月4日 CFB fly ash is discharged from the flue after the coal gangue is burned in a circulating fluidized bed boiler Currently, around 50 million tons of CFB ash slag are emitted in China annually [16]Since the combustion temperature of CFB boilers is much lower than that of common coal ash boilers, CFB fly ash is quite different from ordinary fly ash in terms of its Modification of phosphogypsum using circulating fluidized bed fly ash 2023年5月15日 Fang et al [52] used steel slag and fly ash instead of some cement, and under the optimal conditions of the composite ratio of cement, steel slag powder, and fly ash of 12:5:3, it was found that the moderate addition of steel slag can effectively improve the compressive strength of concrete and improve the activity of cement, Comprehensive utilization of steel slag: A review ScienceDirect2021年1月20日 Later, the solid precursors including fly ash, slag, additives were mixed with fine aggregates for 3 min to achieve a uniform dispersion, Natural carbonation of aged alkaliactivated slag concretes Mater Struct, 47 (2014), pp 693707, 101617/s1152701300892 View in Scopus Google ScholarApproaches to enhance the carbonation resistance of fly ash and slag
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EcoFriendly, HighDuctility Slag/FlyAshBased
2022年4月26日 Engineered cementitious composites (ECCs) are a special class of ultraductile fiberreinforced cementitious composites containing a significant amount of short discontinuous fibers The distinctive tensile strainhardening Table 1 Compositions of fly ash and slag by Xray fluorescence analysis SiO 2 Al 2O 3 CaO MgO Fe 2O 3 K 2O TiO 2 Na 2O LOI Fly ash 530 306 46 13 38 14 11 05 23 Slag 333 175 356 81 07 05 08 04 17 LOI is loss on ignition at 1000 C, wt% 01 1 10 100 1000 0 20 40 60 80 Cumulative distribution by weight (%) 100 Particle size, D Compressive strength development and shrinkage of alkaliactivated fly 2022年7月25日 In response to the high carbon emissions and energy consumption of traditional cement curing agents, in this paper, we propose a fly ash/slagbased geopolymer as an alternative to cement for stabilizing soft soils In this study, the effects of the activator modulus, activator, and slag content on the geopolymerstabilized clay were investigated by unconfined Experimental Investigation and Mechanism of Fly Ash/SlagBased with fly ash (Figure 2) Pumpability and Finishability Pumpability with slag cement and fly ash is generally improved largely due to the addition of fines to the matrix Finishability is also improved Hardened Properties Strength At 28 days, both slag cement and Class C fly ash will achieve higher strength than Class F fly ash and straight SLAG CEMENT AND FLY ASH
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Geotechnical Properties of Fresh and Aged Basic Oxygen Furnace Steel Slag
2015年4月16日 Longterm swelling test results showed that both fresh and aged BOF steel slag increase in volume when exposed to water due to the presence of free lime and magnesia in their chemical composition Replacing 10% by weight of fresh or aged BOF steel slag with Class C fly ash was effective in suppressing the swelling behavior2019年10月1日 Lowcalcium (FA) and highcalcium (HCFA) fly ash and granulated blast furnace slag (GBFS) are the most widely known, standardized and used SCMs in the composition of cement and concrete In the last 4 years, scientific work has focused on improving binder properties (eg long setting time, low early strength etc) containing large quantities of FA, Fly ash and slag ScienceDirectFor reference samples at 28 days, the pH is maintained around 135 for all the mixtures (Fig 4)After 1 year of curing, the pH drops for 2 units, suggesting that OH − ions were consumed by alkaline activation On the other hand, the samples that are noted as carbonated edge have a pH that is reduced due to natural carbonation, but not below 105Natural Carbonation of AlkaliActivated Fly Ash and Slag PastesFly ash 4023 953 2126 1846 182 024 Slag 5245 1034 2578 875 023 012 Gangue aggregates 4687 1875 2432 537 121 034 Fig 2 XRD patterns of slag and y ash Table 2 Physical and mechanical properties of basalt bres Type Monolament diameter/μm Density/(g/cm3) Elastic modulus/ GPa Tensile strength/ GPa Melting point/°C Ultimate elon Mechanical properties and microscopic characteristics of fly ash–slag
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A Review on the Durability of AlkaliActivated Fly
2016年4月22日 Alkaliactivated materials (AAMs) have high potential as alternative binder to ordinary portland cement (OPC), because of their high performance beside lower CO2 emissions While there is a general consensus 2023年10月30日 Mica schist weathered soil possesses a number of poor engineering characteristics, which make it difficult to use as a subgrade material for resource utilization Therefore, in this study, a new type of curing agent, Strength and Microscopic Mechanism of Cement–Fly 2024年7月31日 Abstract To completely replace Portland cement for mine backfilling, MSWI fly ash (FA) and solid metallurgical wastes (ground granulated blast furnace slag, steel slag and flue gas desulphurisation gypsum) were used to prepare fly ashslagbased binder (FBB) The effect of FA content on the hydration and Pb stabilization mechanisms of the FBB was investigated Hydration and Pb Stabilization Mechanisms of Fly Ash–Slag2022年1月24日 Ordinary Portland cement (OPC) is known for its significant contribution to carbon dioxide emissions Geopolymer has a lower footprint in terms of CO2 emissions and has been considered as an alternative for OPC A welldeveloped understanding of the use of flyashbased and slagbased geopolymers as separate systems has been reached in the literature, Setting Time, Microstructure, and Durability Properties of Low
Sustainable Binder Based on Sodium CarbonateActivated Fly Ash/Slag
2015年5月12日 The current research aims to investigate alkaliactivated fly ash (AAFA) concrete/mortar modified with granulated ground blastfurnace slag (slag) FA was partially replaced with slag at levels of 2023年3月9日 The behaviour of the bond between reinforcing bar and the blended fly ash (FA) and ground granulated blast furnace slag (GGBS) geopolymer concrete is investigated in this research A single bar, each with a diameter (db) of 16 and 20 mm, was pulled out from the ambientcured M40 grade geopolymer concrete in a 4:1 (GPC 1), 233:1 (GPC 2), 15:1 (GPC Mechanical properties and bond behaviour of steel rebar and fly ash 2024年4月1日 To study the effect of different slag content and different curing methods on the carbonation resistance of fly ash and slagbased geopolymer concrete (FASLGPC), a series of experiments were carried out with slag content (accounting for 10%, 30% and 50% of cementitious materials) and curing methods (standard curing and high temperature curing) as Research on the Carbonation Resistance and Carbonation Depth2014年8月1日 Request PDF Distinctive microstructural features of aged sodium silicateactivated slag concretes (ITZ) in alkaliactivated fly ashslag (AAFS) concrete using scanning electron microscopeDistinctive microstructural features of aged sodium silicate
Hydration properties of alkaliactivated fly ash/slag binders
2021年12月1日 The chemical compositions of the raw fly ash and slag were obtained using an Xray fluorescence (XRF) spectrometer, and are listed in Table 1 10 mass% calcined MgO was added as a precursor, and the MgO was produced by calcination of magnesite, which is pure and basic heavy material from Samchun Chemicals of Korea2024年4月1日 The alkaliactivated fly ashslag (AAFS) cementitious binder has been recognized as a stable system (Tu et al, 2023), which exhibits improved performance compared to binders prepared with sole precursors (Zhang et al, 2022)Compared with alkaliactivated fly ash (AAF) and alkaliactivated slag (AAS), AAFS contains a balanced content of Ca 2+ and AlO 2 − Valorization of alkaliactivated fly ashslag claddings to enhance