Use of fly ash for the development of sustainable construction materials

Gupta, Sanchit; Chaudhary, Sandeep

doi:10.1016/b978-0-12-818961-0.00021-1

Cited by 11 publications

(3 citation statements)

References 30 publications

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“…Utilizing fly ash helps in waste management and reduces the disposal problem. Fly ash utilization plays a key role in closing the loop in the construction industry, promoting sustainable development and circular economy [68,70]. However, to maximize its use, a two-pronged approach is required.…”

Section: Fly Ashmentioning

confidence: 99%

Uncovering the potential of industrial waste: turning discarded resources into sustainable advanced materials

Rauf,

Heryanto,

Tahir

et al. 2024

Phys. Scr.

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To identify solutions for utilizing industrial wastes (slag, sludge, fly ash, and bottom ash) in the development of pro-environmental systems, this paper reviews existing literature and explores material characterization methods. A review analysis was conducted to uncover their potential, and it was found that many utilizations can be made to recycle them into sustainable materials. Structure characterization, optical-dielectric function, and morphology analysis were analyzed to confirm the recent review. Structural properties are represented by crystallite size and crystallinity, where nickel slag shows the smallest distribution (55±10) nm with the highest crystallinity (25.42%), indicating its association with uniformity of response to external disturbances and micro-structural stability. From the analysis of optical and dielectric functions via Kramers Kronig relation, the widening of ∆(LO-TO) was shown by fly ash and slag indicating stable bonding suitable as x-ray shielding and sensor, while high electron loss functions were shown by sludge and bottom ash indicating high potential electronic transition performance. Based on their chemical and physical properties, these industrial wastes are not limited as construction materials and can even be upgraded to more advanced development materials.

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Section: Fly Ashmentioning

confidence: 99%

Uncovering the potential of industrial waste: turning discarded resources into sustainable advanced materials

Rauf,

Heryanto,

Tahir

et al. 2024

Phys. Scr.

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“…When incorporated into concrete, fly ash enhances the material's strength and durability, decreases its permeability, and augments its resistance to sulfates and acids. Additionally, fly ash has a lower carbon footprint than PC, as it repurposes a waste product and reduces the demand for virgin materials [38][39][40][41]. Similarly, GGBS, a byproduct of iron and steel production, when used in concrete, improves material durability and chemical attack resistance.…”

Section: Sustainable Building Practices: Why Fly Ash and Ggbs Outperf...mentioning

confidence: 99%

Evaluation of Alkali-Activated Mortar Incorporating Combined and Uncombined Fly Ash and GGBS Enhanced with Nano Alumina

Ali

2024

Civ Eng J

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The present research focuses on assessing the fresh and hardened properties as well as the durability performance of alkali-activated mortar in an ambient environment and the impact of integrating nano-alumina (NA) at a 2% ratio as a substitute for binder materials in alkali-activated mortar (AAM). Additionally, it assesses the effectiveness of alkali-activated mortar employing different blends of ground granulated blast furnace slag (GGBS) and fly ash as environmentally friendly substitute building materials. Fly ash (FA), ground granulated blast slag (GGBS), and an equal mixture of GGBS and FA make up these binder ingredients. As a result, the main binders contain GGBS, FA, or a 50/50 mixture of GGBS and FA. The sodium hydroxide (NaOH) concentration is fixed at a 12-molarity level, and the alkali activator solution to binder ratio is kept at 0.5. In the alkali solution, the ratio of sodium silicate to sodium hydroxide is always 2.5. The study evaluates various properties of AAM, such as compressive strength, flowability, unit weight, flexural tensile strength, and durability, under ambient conditions at a steady room temperature of 23±3°C. Results indicate that AAM mixtures devoid of NA exhibit a higher flow rate compared to those containing NA. Nonetheless, the flowability of AAM mixtures aligns well with standard requirements, being modest yet adequate. Significantly, the inclusion of NA enhances the mechanical properties and durability of AAM, demonstrating its beneficial effects. Doi: 10.28991/CEJ-2024-010-03-016 Full Text: PDF

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“…Especially, HGM particles have hollow structures inside filled with air, which can lower the vibration transmission speed to increase the energy dissipation of concrete because vibration transmission speed is slower in the air than in solid structures. Likewise, CS particles also have hollow structures inside filled with air or inert gas, and CS is a kind of byproduct from coal combustion at thermal power plants, so the utilization of CS in concrete as filler helps alleviate the environmental problem [ 25 ]. Different from HGM and CS, GF is highly crystalline and consists of multi-layers of graphite and Van der Waals force that is a weak bond among each layer, which allows each layer to slide one past another resulting in a preferential shear direction of deformation [ 26 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Types of Microparticles on Vibration Reducibility of Cementitious Composites

Park

Pyo

2022

Materials

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The vibration-reducing ability of construction materials is generally described by the damping ratio of the materials. Previously, many studies on the damping ratio of concrete have been done, such as the addition of rubber, polymer, fiber, and recycled aggregates in the concrete. However, the application of these materials in construction is limited due to their drawbacks. This paper investigated the effect of the replacement ratio and the size of the hollow glass microspheres (HGM), cenospheres (CS), and graphite flakes (GF) on the damping ratio of mortar. Furthermore, rubber particles (RP), aluminum powder (AP), and natural fiber (NF) were investigated to find if they have a combination effect with HGM. The half-power bandwidth method was conducted to obtain the damping ratio at 28 days of curing, and the compressive and flexural strength tests were also conducted to study the mechanical properties of mortar that contained HGM, CS, and GF. The results show that increases in the size of HGM and the replacement ratio of sand with HGM lead to an increase in the damping ratio. Moreover, RP and NF do not provide a combination effect with HGM on the damping ratio, whereas the application of AP results in a drastic compressive strength decrease even with an increase in damping ratio when incorporated with HGM. Besides, an increase in the replacement percentage of CS also leads to an improvement in the damping ratio, and a smaller size and higher replacement ratio of GFs can improve the damping ratio compared to other additives. As a result, CS and GF are more effective than HGM. 50% replacement ratio of CS slightly reduced the compressive strength by 6.4 MPa while improving the damping ratio by 15%, and 10% replacement ratio of samller GF can enhance the flexural strength by over 4.55% while increasing the damping ratio by 20.83%.

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Use of fly ash for the development of sustainable construction materials

Cited by 11 publications

References 30 publications

Uncovering the potential of industrial waste: turning discarded resources into sustainable advanced materials

Uncovering the potential of industrial waste: turning discarded resources into sustainable advanced materials

Evaluation of Alkali-Activated Mortar Incorporating Combined and Uncombined Fly Ash and GGBS Enhanced with Nano Alumina

Effect of Types of Microparticles on Vibration Reducibility of Cementitious Composites

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