Identification of design parameters influencing manufacture and properties of cold-bonded pond ash aggregate

Vasugi, V.; Ramamurthy, K.

doi:10.1016/j.matdes.2013.08.019

Cited by 46 publications

(19 citation statements)

References 18 publications

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“…Ca(OH)2 and Na2SO4 have also been used as pelletization and strength enhancing admixtures for cold-bonding of lignite and bituminous pond ash (Vasugi & Ramamurthy, 2014). For the pond ash overall properties were enhanced by increasing Ca(OH)2 and Na2SO4 content, especially when the used binder is cement instead of lime.…”

Section: Mix-design For Pellets With Different Waste Materialsmentioning

confidence: 99%

Cold-bonding process for treatment and reuse of waste materials: Technical designs and applications of pelletized products

Ferraro

Colangelo

Farina

et al. 2020

Critical Reviews in Environmental Science and Technology

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This work provides a comprehensive review of research on the cold-bonding pelletization process used to produce lightweight aggregates (LWAs) using waste materials, to valorise the waste and, at the same time, minimize risks related to disposal. Research investigating various aspects of the cold-bonding process highlight: i) feasible mix-designs for pellet production; ii) the most relevant operating parameters affecting the process; and iii) the potential applications of the LWAs produced. The analysis gives a wide overview of the fundamental key-points that control the cold-bonding process. Data comparison provides a useful way to identify the optimal process conditions to allow development of optimum products. This involves the selection of the correct mix-design, including suitable binders and potential additives, and the selection of appropriate operating conditions, which are a function of the waste investigated, and/or waste mix characteristics. The review proposes an optimised approach to experimental studies on cold-bonding processes that has potential to enhance future process performance. Moreover, the present work provides a complete framework useful for decision-making for both manufacturers and researchers working to use this promising technique.

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Section: Mix-design For Pellets With Different Waste Materialsmentioning

confidence: 99%

Cold-bonding process for treatment and reuse of waste materials: Technical designs and applications of pelletized products

Ferraro

Colangelo

Farina

et al. 2020

Critical Reviews in Environmental Science and Technology

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“…The use of a high-temperature process has the following advantages: high yield, low cost, stable quality, and high thermal efficiency. Furthermore, LWAs can also be obtained with alternative low-temperature processes, such as cold bonding pelletization [ 4 , 5 , 6 , 7 , 8 ]. The cold bonding method uses normal water curing at an ambient temperature to bond the mixing material.…”

Section: Introductionmentioning

confidence: 99%

Application of the Taguchi Method for Optimizing the Process Parameters of Producing Lightweight Aggregates by Incorporating Tile Grinding Sludge with Reservoir Sediments

2017

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This study aimed to apply the Taguchi optimization technique to determine the process conditions for producing synthetic lightweight aggregate (LWA) by incorporating tile grinding sludge powder with reservoir sediments. An orthogonal array L16(45) was adopted, which consisted of five controllable four-level factors (i.e., sludge content, preheat temperature, preheat time, sintering temperature, and sintering time). Moreover, the analysis of variance method was used to explore the effects of the experimental factors on the particle density, water absorption, bloating ratio, and loss on ignition of the produced LWA. Overall, the produced aggregates had particle densities ranging from 0.43 to 2.1 g/cm3 and water absorption ranging from 0.6% to 13.4%. These values are comparable to the requirements for ordinary and high-performance LWAs. The results indicated that it is considerably feasible to produce high-performance LWA by incorporating tile grinding sludge with reservoir sediments.

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“…[137][138][139][140][141][142][143]144 The cement-based cold-bonding pelletization process has recently gained attention. [107][108][109][144][145][146][147][148] The stabilization/ solidification process uses a rotary plate pelletization pilotscale apparatus with binding mixes. A double-step pelletization is performed in order to obtain a final product with improved properties.…”

Section: Artificial Aggregates In Concretementioning

confidence: 99%

Binders alternative to Portland cement and waste management for sustainable construction – Part 2

Coppola

Bellezze

Belli

et al. 2018

Journal of Applied Biomaterials & Functional Materials

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The paper represents the "state of the art" on sustainability in construction materials. In Part 1 of the paper, issues related to production, microstructures, chemical nature, engineering properties, and durability of mixtures based on binders alternative to Portland cement were presented. This second part of the paper concerns the use of traditional and innovative Portland-free lime-based mortars in the conservation of cultural heritage, and the recycling and management of wastes to reduce consumption of natural resources in the production of construction materials. The latter is one of the main concerns in terms of sustainability since nowadays more than 75% of wastes are disposed of in landfills.

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Identification of design parameters influencing manufacture and properties of cold-bonded pond ash aggregate

Cited by 46 publications

References 18 publications

Cold-bonding process for treatment and reuse of waste materials: Technical designs and applications of pelletized products

Cold-bonding process for treatment and reuse of waste materials: Technical designs and applications of pelletized products

Application of the Taguchi Method for Optimizing the Process Parameters of Producing Lightweight Aggregates by Incorporating Tile Grinding Sludge with Reservoir Sediments

Binders alternative to Portland cement and waste management for sustainable construction – Part 2

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