metakaolin making machine

Splitting tensile strength prediction of Metakaolin concrete …

metakaolin based on the hybrid machine learning method. Material s 15, 3500 (2022). 52. Lee, S.-C. Prediction of concret e strength using arti cial neural networks. Eng.

Utilisation of Biosilica as Active Silica Source for Metakaolin …

This study explores the potential of biosilica including diatom and diatomaceous earth as alternative silica sources for metakaolin-based geopolymers. Diatomaceous earth, composed of fossilised diatom frustules rich in amorphous silica, and diatoms, a sustainable source of renewable biosilica, are investigated for their …

Splitting tensile strength prediction of Metakaolin concrete …

Splitting tensile strength (STS) is an important mechanical property of concrete. Modeling and predicting the STS of concrete containing Metakaolin is an important method for analyzing the mechanical properties. In this paper, four machine learning models, namely, Artificial Neural Network (ANN), su …

Metakaolin

A Review of the Engineering Properties of Metakaolin Based …

Concrete containing metakaolin is expected to have improved short-term performance and superior long-term strengths but not develop any substantial strength …

Study on the Binding Behavior of Chloride Ion and Ettringite …

Mixing cement with seawater will cause the hydration process of cement to be different from that of ordinary cement, which will significantly affect cement's mechanical properties and durability. This article investigates the effects of chloride ion concentration, curing temperature, and nano-metakaolin content on the evolution process of Friedel's …

Effect of Water Magnetization Technique on the Properties of Metakaolin

Using metakaolin (MK) in concrete with magnetized water (MW) has a high possibility to enhance concrete suitability. In this study, the effect of using MK and MW on concrete characteristics was studied through testing twelve concrete mixes. Seven ratios of MK were used in this study, namely 0%, 5%, 10%, and 20%, as an alternative to cement …

Geopolymer concrete with metakaolin for sustainability: a …

In the last three decades, the gigantic demand for sustainable and environmentally friendly concrete with reduced environmental footprints has resulted in the development of low carbon concretes such as geopolymer concrete. Metakaolin which is commonly used as an admixture or partial replacement of cement owing to its most …

Study of Geopolymer Composites Based on Volcanic Ash, Fly …

This work studies the feasibility to employ a combination of volcanic ash (natural waste) with different raw materials in the production of geopolymers: fly ash and mining tailing (considered hazardous solid waste), natural pozzolan, and metakaolin. This study compares the properties of geopolymers based on volcanic ash with fly ash, …

Development of Backfill Concrete Including Coal Gangue and Metakaolin …

A peer-reviewed manuscript entitled: "Development of backfill concrete including coal and metakaolin and prediction of compressive strength by extreme learning machine", is an interesting approach in modeling the compressive strength of concrete with additives. Some improvements are needed for the paper to be published.

In-Depth Analysis of Cement-Based Material …

In recent decades, a variety of organizational sectors have demanded and researched green structural materials. Concrete is the most extensively used manmade material. Given the adverse environmental …

Frontiers | Predicting the impact of adding metakaolin on …

Predicting the impact of adding metakaolin on the splitting strength of concrete using ensemble ML classification and symbolic regression techniques –a comparative study. ... RSM often requires fewer data points to build models compared to machine learning techniques, making it suitable for situations where data collection is …

Metakaolin manufacturing process through kaolin …

Metakaolin was used as one of the raw materials in the geopolymerization process. This research examines the influence of three different percentages of sulfate (0.00038, 1.532, and 16.24) % in ...

Optimization of kaolin into Metakaolin: Calcination …

The formula below was used to calculate the pozzolanic activity of metakaolin: PAM = 2 × V 1-V 2 V 1 × 74 56 × 1000 where PAM is the pozzolanic activity of metakaolin (mg CaO consumed/gm metakaolin); V1 and V2 are the volumes of 0.1 N HCl (ml) necessary for titrating 25 ml of the filtrated solution obtained without metakaolin …

Durability analysis of metakaolin recycled concrete under

This study aims to enhance the durability, cost-effectiveness, and sustainability of recycled fine aggregate concrete (RFAC) subjected to the combined effects of wet-dry cycles and sulfate erosion.

Splitting tensile strength prediction of Metakaolin concrete …

Introduction. Concrete is the second most consumed material in the world after water. Portland cement is the primary binder used in most concrete applications 1 – 4.The production of cement consumes a significant amount of energy and releases approximately 7% of global carbon dioxide emissions into the atmosphere 5 – 8.However, the demand …

Minerals | Free Full-Text | Study on the Activity of Metakaolin

This paper analyzed the activity of coal-based metakaolin and non-coal-based metakaolin (ordinary metakaolin) commonly used in the Chinese market. The content of kaolin was detected by XPF. The phases of kaolin, metakaolin and corresponding alkali-excited reactants were detected by XRD. The contents of Al (IV), Al …

Synthesis of Metakaolin Based Alkali Activated Materials as …

Water contamination is a major issue due to industrial releases of hazardous heavy metals. Copper ions are among the most dangerous heavy metals owing to their carcinogenicity and harmful effects on the environment and human health. Adsorption of copper ions using alkali activated materials synthesized through the polycondensation …

Mechanics and microstructure analysis of geopolymer …

Machine Learning Analysis: Substituting metakaolin with iron tailings, doped at a maximum of 20 %, has a minimal impact on the strength of systems with Ca/Si ratios from 0.03 to 0.20 and high Ca/Na ratios from 0.01 to 0.48. The strength prediction equations show a notable inverse relationship between the liquid-solid ratio and strength ...

Metakaolin

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Metakaolin

Metakaolin is a layered aluminosilicate material which is used in cements as a pozzolanic additive and is produced by dehydroxylation of kaolinite clay at temperatures of 500––800 °C [107,108].It is frequently used as an SCM in blends with PC [61,109]. 29 Si and 27 Al MAS NMR studies of metakaolin have shown that it consists of alternating buckled …

In-Depth Analysis of Cement-Based Material Incorporating Metakaolin …

Metakaolin (MK) as an additive or partial cement replacement is a key subject of concrete research. Developing predictive machine learning (ML) models is crucial as environmental challenges rise.

Development of Backfill Concrete Including Coal Gangue and Metakaolin …

The design code expressions and empirical models for estimating the elastic modulus based on the compressive strength. …

(PDF) A Comprehensive Effects Review of Using Metakaolin …

Both metakaolin (MK) a nd commercial metakaolin (MKC) exhibit similar b ehavior when it co mes to concrete strength. While metakaoli ns have higher than average k-values, near 3.0 on the da y of ...

Manufacturing of metakaolin in self curing process

This paper aims to provide an alternate curing technique for fly ash based self-com-pacting geopolymer concrete other than post-casting heating of the elements. This limitation of post-casting ...

Geopolymer mortar: metakaolin-based recipe for …

The Metakaolin source (MK) is a pure kaolin, calcinated at 1100°C in order to obtain a metakaolin. We have tested it by powder X-ray diffraction (pXRD) by mean of a Bruker D2 analyzer equipped with an X-ray tube with a copper anode (CuKα, λ = 0.154 nm). A scan of the metakaolin powder was performed at low and high angles

Splitting tensile strength prediction of Metakaolin …

For machine learning models, a representative dataset is necessary and important. erefore, this study col- lected a total of 204 samples from the literature 17,18,56–70 . e descriptive ...

(PDF) Prediction of the Compressive Strength for …

In this study, a Random Forests (RF) and Firefly Algorithm (FA) hybrid machine learning model was proposed to predict the compressive strength of metakaolin cement-based materials.

The Effect of Volcanic Stone and Metakaolin on the …

Metakaolin reacts pozzolanically to produce additional calcium silicate hydrate (C-S-H), filling the pores in the concrete, thus increasing its density and crack resistance [15,16]. Additionally, metakaolin exhibits water-reducing properties, which can lower the water demand in concrete and improve its workability . The combined use of volcanic ...

Molecular Engineering of Superplasticizers for Metakaolin…

Blending metakaolin (MK), a calcined clay, into portland cement (PC) improves resulting concrete material properties, ranging from strength to durability, as well as reducing embodied CO 2 and energy. However, superplasticizers developed for PC can be inefficient or ineffective for improving the dispersion of PC-MK blends.