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Exploring Petcoke Fly Ash Characteristics for Wider Application as Cement-Based Composites

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Title Exploring Petcoke Fly Ash Characteristics for Wider Application as Cement-Based Composites
 
Creator Parmar, Varsha
Padmakaran, Prabha
Khan, Mohd. Akram
 
Subject Bed ash
Hydration product
Leachability
Petroleum coke fly ash
TCLP
 
Description 845-855
As country’s demand for petroleum coke in power plants is increasing drastically as a substitute for coal due to its high
carbon content and easy availability, it results in large generation of petcoke combustion byproducts. Reducing the potential
leachability of possible heavy metals from these byproducts is a crucial issue for its safe disposal and proper utilization. In
this study, Petcoke Fly Ash (PCFA) and Bed Ash (BA) were characterized for mineralogical, morphological, metal analysis
using analytical technique like XRD, SEM, HR-TEM, WD-XRF, FTIR, AAS and leachability studies using TCLP. Results
showed mean particle size of PCFA is 18.015 μm and BA is 41.165 μm, leachable concentration of Vanadium, Nickel,
Chromium, Manganese, Aluminium, Barium and other heavy metals in both ashes, XRD shows presence of CaSO4, V2O5
and CaO, SEM and HR-TEM micrographs confirm that PCFA and BA have porous morphology with varying size and
irregular particles with interplanar spacing of 0.35 nm and 0.32 nm respectively. Results also confirmed the resemblance of
PCFA with PPC in terms of fineness (PCFA=2960 m2/g and PPC≥3000 m2/g, consistency (PCFA 36–45% and PPC
25–35%). The study concluded that based on textural, compositional and mechanical properties, PCFA and BA have potential
as an alternative raw material in cement concrete for application in development of low cost, green construction materials.
 
Date 2024-08-12T10:22:40Z
2024-08-12T10:22:40Z
2024-08
 
Type Article
 
Identifier 0022-4456 (Print); 0975-1084 (Online)
http://nopr.niscpr.res.in/handle/123456789/64406
https://doi.org/10.56042/jsir.v83i8.10192
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source JSIR Vol.83(8) [August 2024]