A Comprehensive Review on Fly Ash-Based Geopolymer

Journal of Composites Science, Год журнала: 2022, Номер 6(8), С. 219 - 219

Опубликована: Июль 27, 2022

The discovery of an innovative category inorganic geopolymer composites has generated extensive scientific attention and the kaleidoscopic development their applications. escalating concerns over global warming owing to emissions carbon dioxide (CO2), a primary greenhouse gas, from ordinary Portland cement industry, may hopefully be mitigated by construction with lower footprint. current manuscript comprehensively reviews rheological, strength durability properties composites, along shedding light on recent key advancements viz., micro-structures, state-of-the-art applications such as immobilization toxic or radioactive wastes, digital concrete, 3D-printed fly ash-based geopolymers, hot-pressed foam etc. They have crystal-clear role play in offering sustainable prospect part accessible toolkit building materials—binders, cements, mortars, concretes, Consequently, present scientometric review is grist for mill aims contribute single note document assessing exhaustive research findings establishing viability most promising, durable, sustainable, affordable, user eco-benevolent materials future.

Язык: Английский

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Factors affecting production and properties of self-compacting geopolymer concrete – A review

Construction and Building Materials, Год журнала: 2022, Номер 344, С. 128174 - 128174

Опубликована: Июнь 20, 2022

Язык: Английский

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Comparison of rheology and durability of geopolymer and Portland cement concrete at the same strength levels

Construction and Building Materials, Год журнала: 2025, Номер 461, С. 139958 - 139958

Опубликована: Янв. 1, 2025

Язык: Английский

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Thermal Decomposition of Calcium Carbonate at Multiple Heating Rates in Different Atmospheres Using the Techniques of TG, DTG, and DSC

Crystals, Год журнала: 2025, Номер 15(2), С. 108 - 108

Опубликована: Янв. 22, 2025

To grasp the decomposition reaction rule of calcium carbonate in cement raw material, thermogravimetric analyzer (TG), derivative (DTG), and differential scanning calorimeter (DSC) were used for analysis. Calcium samples heated linearly at multiple heating rates 10, 20, 30, 40 °C/min atmospheres N2 70% + 30% O2, respectively. The kinetics was investigated using a double extrapolation method. Kinetic parameters thermal most probable mechanism function determined two different atmospheres. results show that TG, DTG, DSC curves moved to higher temperature with increase rate, addition O2 atmosphere had almost no effect on change curve. Additionally, activation energy initial state formation new nucleus obtained method 232.13 kJ/mol atmosphere, probabilistic mechanistic G(α) = 1 − (1 α)1/2. chemical process consistent contracted cylinder model phase boundary reaction. Moreover, 233.79 20% atmosphere. Therefore, these could determine rate carbonate. This important understanding stability processing range polymer materials, especially application potential production scientific research.

Язык: Английский

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Experimental Analysis of Geopolymer Concrete: A Sustainable and Economic Concrete Using the Cost Estimation Model

Advances in Materials Science and Engineering, Год журнала: 2022, Номер 2022, С. 1 - 16

Опубликована: Окт. 6, 2022

Geopolymer concrete is sustainable, economical, eco-friendly, durable, and high-strength concrete. a name for the bonding that occurs during binding of materials in alkaline conditions. Due to presence high silica alumina content, pozzolanic could be used as GPC. This research aims check sustainability cost analysis both GPC conventional with their physical, chemical, mechanical properties. The experimental investigation analyzes OPC concrete’s properties M30 mix design sustainability. shows setting time, density, drying shrinkage are higher than compressive strength concretes showed similar trends at 28-day strength, but initial three-day was much splitting tensile flexural specimens slightly specimens. elastic modulus design, whereas Poisson’s ratio lower have thermal stability up 800°C. utilizes industrial solid waste like fly ash slag material activated by an solution containing NaOH Na2SiO3 mix. Therefore, has less embodied energy compared bulk level reduced 40%

Язык: Английский

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Prediction of Mechanical Strength by Using an Artificial Neural Network and Random Forest Algorithm

Journal of Nanomaterials, Год журнала: 2022, Номер 2022(1)

Опубликована: Янв. 1, 2022

Geopolymer concrete could be the best alternative to ordinary Portland cement due its higher performance in any severe condition. It reduces carbon footprints a very level. Machine learning methods are future of construction industry because it predicts mechanical strengths mix design on basis their constituents without destructive test conduction. This study is aimed at developing models predict and validate them with actual results. After experimental investigation, we found results (including compressive, splitting tensile, flexural tensile) strength. The M2 geopolymer got highest whereas M5 gets lowest among all designs. machine ANN (artificial neural network) random forest used develop based mixed Mechanical strength taken as outputs, inputs for training testing. predicted checked R 2 , MAE (mean absolute error), RMSE (relative mean square RAE RRSE (root‐relative error). Random show prediction shows negligible error between values. value 1 12 out 15 by use methods. So most suitable constituent’s material quantity.

Язык: Английский

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Effect of nano-silica on the fresh and mechanical properties of conventional concrete

Forces in Mechanics, Год журнала: 2023, Номер 10, С. 100165 - 100165

Опубликована: Янв. 5, 2023

Nanotechnology is a new field of study that might eventually affect every other area research and development. Many scientists have proposed various definitions nanotechnology. Nano-materials could be good product for the repair rehabilitation structures due to their particle size. It increases packing density concrete makes impervious easily. This research, checks setting time, workability, compressive strength, splitting tensile, flexural strength different mix designs after incorporation nano-silica in conventional at ratios. The varies from 0.0% 3.0% by interval 0.5%. After experimental investigation, mechanical properties with increment ingression but it also decreases workability concrete. propose correlation equation between ffs=7.44+4.93fcs.

Язык: Английский

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Prediction of compressive strength of geopolymer concrete using random forest machine and deep learning

Asian Journal of Civil Engineering, Год журнала: 2023, Номер 24(7), С. 2659 - 2668

Опубликована: Апрель 26, 2023

Язык: Английский

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Review of Geopolymer Nanocomposites: Novel Materials for Sustainable Development

Materials, Год журнала: 2023, Номер 16(9), С. 3478 - 3478

Опубликована: Апрель 29, 2023

The demand for geopolymer materials is constantly growing. This, in turn, translates into an increasing number of studies aimed at developing new approaches to the methodology synthesis. range potential applications geopolymers can be increased by improving properties components. Future directions on aim showing excellent mechanical but also demonstrating significant improvement thermal, magnetic, or sorption characteristics. Additionally, current efforts focus not only materials' obtaining them as a result environment-friendly performed line with circular economy assumptions. Scientists look smart and economical solutions such that small amount modifier will translate functional properties. Thus, special attention paid application nanomaterials. This article presents selected nanoparticles incorporated matrices, including carbon nanotubes, graphene, nanosilica, titanium dioxide. review was prepared employing scientific databases, particular given nanocomposites. purpose this discuss nanocomposites context sustainable development approach. Importantly, main influence these nanomaterials physicochemical Such combination technology nanotechnology seems promising terms preparation variety uses.

Язык: Английский

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Prediction of the compressive strength of Flyash and GGBS incorporated geopolymer concrete using artificial neural network

Asian Journal of Civil Engineering, Год журнала: 2023, Номер 24(8), С. 2837 - 2850

Опубликована: Май 1, 2023

Язык: Английский

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