Investigation of characteristics and leaching behavior of coal fly ash, coal fly ash bricks and clay bricks

2017 ◽  
Vol 7 ◽  
pp. 152-159 ◽  
Author(s):  
Nidhi Gupta ◽  
Vidyadhar V. Gedam ◽  
Chandrashekhar Moghe ◽  
Pawan Labhasetwar
Keyword(s):  
Fly Ash ◽  
Coal Fly Ash ◽  
Leaching Behavior ◽  
Clay Bricks

Comparative assessment of batch and column leaching studies for heavy metals release from Coal Fly Ash Bricks and Clay Bricks

2019 ◽  
Vol 16 ◽  
pp. 100461 ◽  
Author(s):  
Nidhi Gupta ◽  
Vidyadhar V. Gedam ◽  
Chandrashekhar Moghe ◽  
Pawan Labhasetwar
Keyword(s):  
Heavy Metals ◽  
Fly Ash ◽  
Coal Fly Ash ◽  
Comparative Assessment ◽  
Column Leaching ◽  
Clay Bricks ◽  
Metals Release

scholarly journals Leaching behavior of selected trace elements in coal fly ash samples from Yenikoy coal-fired power plants

2012 ◽  
Vol 104 ◽  
pp. 50-56 ◽  
Author(s):  
Gul Akar ◽  
Mehmet Polat ◽  
Greg Galecki ◽  
Uner Ipekoglu
Keyword(s):  
Trace Elements ◽  
Fly Ash ◽  
Power Plants ◽  
Coal Fly Ash ◽  
Leaching Behavior

Verification of laboratory–field leaching behavior of coal fly ash and MSWI bottom ash as a road base material

2000 ◽  
Vol 20 (2-3) ◽  
pp. 193-201 ◽  
Author(s):  
J.P.G.M. Schreurs ◽  
H.A. van der Sloot ◽  
Ch. Hendriks
Keyword(s):  
Fly Ash ◽  
Coal Fly Ash ◽  
Bottom Ash ◽  
Base Material ◽  
Leaching Behavior ◽  
Road Base ◽  
Mswi Bottom Ash

Synthesis of CFB-Coal Fly Ash Clay Bricks and Their Characterisation

2010 ◽  
Vol 2 (1) ◽  
pp. 87-94 ◽  
Author(s):  
Nikolaos Koukouzas ◽  
Chrisovalantis Ketikidis ◽  
Grigorios Itskos ◽  
Xenophon Spiliotis ◽  
Vayos Karayannis ◽  
...  
Keyword(s):  
Fly Ash ◽  
Coal Fly Ash ◽  
Clay Bricks

Investigation of use of coal fly ash in eco-friendly construction materials: fired clay bricks and silica-calcareous non fired bricks

2018 ◽  
Vol 44 (4) ◽  
pp. 4400-4412 ◽  
Author(s):  
D. Eliche-Quesada ◽  
J.A. Sandalio-Pérez ◽  
S. Martínez-Martínez ◽  
L. Pérez-Villarejo ◽  
P.J. Sánchez-Soto
Keyword(s):  
Fly Ash ◽  
Coal Fly Ash ◽  
Construction Materials ◽  
Clay Bricks ◽  
Fired Bricks

scholarly journals Optimization of the Mix Formulation of Geopolymer using Nickel-laterite Mine Waste and Coal Fly Ash

2020 ◽  
Author(s):  
Alberto Jr Longos ◽  
April Anne Tigue ◽  
Ithan Jessemar Dollente ◽  
Roy Alvin Malenab ◽  
Ivyleen Bernardo-Arugay ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Mine Waste ◽  
Coal Fly Ash ◽  
Plain Concrete ◽  
Design Experiment ◽  
Nickel Laterite ◽  
Clay Bricks ◽  
Average Variance ◽  
Precursor Ratio

Geopolymer cement has been popularly studied nowadays compared to ordinary Portland cement but has demonstrated superior environmental advantages due to its lower carbon emissions and waste material utilization. Several studies on geopolymers have utilized various wastes like fly ash, blast furnace slag, silica fume, rice husk, or a combination of these wastes. This paper presents a mix formulation design experiment to produce a geopolymer from nickel-laterite mine waste (NMW) and coal fly ash (CFA) as a geopolymer precursor, and sodium hydroxide (SH) and sodium silicate (SS) as alkali activators. An I-optimal design experiment is used to predict the compressive strength for all the mixture's possible formulations and identify optimal proportions to minimize the average variance of prediction. A mixed formulation run of 50% NMW, SH-to-SS ratio of 0.5, and an activator-to-precursor ratio of 0.4286 yielded the highest 28-day unconfined compressive strength (UCS) of 22.1±5.4 MPa. Furthermore, using an optimized formulation of 50.12% NMW, SH-to-SS ratio of 0.516, and an activator-to-precursor ratio of 0.428, an actual UCS value of 36.26±3.6 MPa was obtained. The result implies that the synthesized geopolymer material can be potentially used for pedestrian pavers, light traffic pavers, plain concrete for leveling, building bricks, ceramic glazed facing brick, and fired clay bricks.

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