Novel Engineered Cementitious Materials by using Class C Fly Ash as a Cementitious Phase

Riyad, M. Faisal; Fuka, Matt; Lofthus, R.; Li, Q.; Patel, Niharika; Gupta, Surojit

doi:10.1002/9781119323624.ch4

Cited by 1 publication

(1 citation statement)

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“…Coal fly ash (CFA), which generally has a composition similar to Portland cement [12] is captured by cyclones in bag-houses and electrostatic precipitators. Flue-gas desulfurization (FGD) residues are produced inside chemical "scrubber" emission control systems that remove sulfur and oxides from power plant flue-gas streams and may attain 24% of all coal combustion residues [13].…”

Section: Introductionmentioning

confidence: 99%

Review of the Reuse Possibilities Concerning Ash Residues from Thermal Process in a Medium-Sized Urban System in Northern Italy

et al. 2020

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This review paper reports a detailed characterization of some combustion or incineration residues and by-products produced in a medium-sized city in Northern Italy. The municipal solid waste incineration (MSWI) generates fly ash, which is a toxic waste. Coal fly ash (CFA) and flue gas desulfurization (FGD) derive from the thermoelectric coal plant located in the same city. Along with these ashes, silica fume and rice husk ash are also considered for the stabilization of fly ash based on their amorphous silica content with the aim to convert them into an inert material. The characterization of all the investigated ashes was performed using different techniques: X-ray diffraction, total reflection X-ray fluorescence, scanning electron microscopy, and transmission electron microscopy. The aim of this work is to describe the reuse possibilities that were proposed for these ashes, which were determined also on the basis of their structural properties. Several possible applications of the investigated ashes are proposed, and the most suitable reuse of stabilized fly ash samples seems to be the production of sustainable plastic composites. This paper shows that the reuse of the by-product materials can allow natural resources to be preserved following the principles of a circular economy.

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Section: Introductionmentioning

confidence: 99%