Synthesis, Characterization and Properties of Fly Ash Based Geopolymer Materials

Das, Dipankar; Rout, Prasanta Kumar

doi:10.1007/s11665-021-05647-x

Cited by 37 publications

(10 citation statements)

References 75 publications

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“…Figure 1 shows the materials used in this study. Particle size plays an important role in mechanical properties of solid blocks (23)(24)(25) . Figure 2 shows the gradation curve of fly ash and stone dust used in this study.…”

Section: Methodsmentioning

confidence: 99%

Experimental Study on Mechanical and Durability Behaviour of a Sustainable Masonry Block Incorporating Agricultural and Industrial Wastes

Prakash,

Srividhya,

Sivakumar

et al. 2024

IJST

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Objectives: The production of conventional cement blocks consumes significant amount of cement. The production of cement, involves significant energy consumption and releases carbon dioxide emissions, contributing to carbon footprint. However, advancements in sustainable masonry block production have been made to minimize these drawbacks. Hence, this research aims to develop a sustainable masonry solid block by incorporating Rice Husk Ash (RHA) and Flay Ash (FA). Methods: The manuscript discusses the mechanical and durability properties of sustainable masonry block and comparing the result with the conventional cement blocks. The materials used are FA, Lime, Gypsum, RHA, Marble Dust Powder (MDP), Stone Quarry Dust (SQD). The solid blocks tested for Compressive strength, Density, Water absorption, Initial rate of water absorption, efflorescence, and chemical resistance. Findings: The results showed that, the addition of RHA, FA, and MDP enhanced the compressive strength of the solid blocks upto 46% when compared to convention cement block. A density reduction of 2.5% was achieved. It also exhibited a reduction in water absorption of 29.2%. IRA tests evident that the sustainable solid blocks shows reduced water absorption levels at both the one-minute and two-minute time intervals in comparison to conventional cement solid blocks. At a one-minute time, the rate of absorption for M4 is 69% lower when compared to conventional cement solid blocks. The RHA, FA and MDP admixed blocks showed better durability properties in terms of efflorescence, and chemical resistance. Novelty : This solid block production method is an innovative methodology that supports the conservation of natural resources, reduces pollution, and preserves the environment. As a result, it encourages the advancement of eco-friendly technology. Keywords: Sustainable building blocks, Fly ash, Lime, Rice husk ash, Marble dust, Stone quarry dust

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Section: Methodsmentioning

confidence: 99%

Experimental Study on Mechanical and Durability Behaviour of a Sustainable Masonry Block Incorporating Agricultural and Industrial Wastes

Prakash,

Srividhya,

Sivakumar

et al. 2024

IJST

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“…The geopolymer composite mixes are made concerning the literature [14]. Table 2 shows the ratio of the materials used to produce fiber-reinforced geopolymer composites.…”

Section: Proportionsmentioning

confidence: 99%

Comparative Study of Rheological Properties of Fly Ash-Based Geopolymer Reinforced With PP Fiber For 3D Printing: An Experimental and Numerical Approach

Sariyev,

Konysbekov,

Konkanov

et al. 2024

Preprint

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The present study drops the line for the flow characteristics of fly ash-based (FA) geopolymers reinforced with polypropylene (PP) fibers undergoing the extrusion process during three-dimensional printing. Applying to the Herschel-Bulkley rheological model the research is ready with the sound theoretical basis which is used to understand the flow behavior of these materials under various conditions. A combination of experimental and numerical techniques that are based on the Finite Element Method (FEM) in COMSOL has been used in this study. The results of both the experimental and simulation approaches are then compared and the behavior of the material during extrusion is then examined. The experimental results proved PP fiber content has significant effects on rheological properties. The experiments on mixes which are either devoid of fibers or possess a high content of fiber, encountered problems like a high static yield stress and material segregation. Mixes with fibers of moderate content showed smoother extrusion processes, which means that a suitable range of fiber addition exists for the fibers that optimally balance the mechanical properties and extrudability. Numerical simulations typically agreed with experimental data for fiber contents up until it reached a certain level but not above, suggesting the existence of more complex interactions inside the fibers and the necessity for the subsequent model refinements. The investigation outlines a 0.25% and 0.5% fiber content range that leads to enhanced performance without bringing the extrusion process to greater complications and further making the production of proper, architecturally printed structures possible.

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“…Geopolymer technology is an effective method of FA disposal developed in recent decades. [7][8][9] The process of FA-based geopolymer curing stabilization involves mixing FA with a geopolymer matrix and adding alkali exciters. This mixture undergoes a geopolymerization reaction, resulting in the formation of a geopolymer that stabilizes the FA.…”

Section: Introductionmentioning

confidence: 99%

Resistance and durability of fly ash based geopolymer for heavy metal immobilization: properties and mechanism

Ren,

Wang,

et al. 2024

RSC Adv.

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Synthesis, Characterization and Properties of Fly Ash Based Geopolymer Materials

Cited by 37 publications

References 75 publications

Experimental Study on Mechanical and Durability Behaviour of a Sustainable Masonry Block Incorporating Agricultural and Industrial Wastes

Experimental Study on Mechanical and Durability Behaviour of a Sustainable Masonry Block Incorporating Agricultural and Industrial Wastes

Comparative Study of Rheological Properties of Fly Ash-Based Geopolymer Reinforced With PP Fiber For 3D Printing: An Experimental and Numerical Approach

Resistance and durability of fly ash based geopolymer for heavy metal immobilization: properties and mechanism

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