Physicochemical characterization of cement treated kaolin clay

doi:10.14256/jce.976.2013

Cited by 14 publications

(9 citation statements)

References 16 publications

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“…A less intense peak for quartz was found at 55.1°. This finding is similar to Naghsh and Shams, who stated that the presence of peaks at 13°, 20° and 25° in the raw kaolin show that the major crystalline phase is kaolinite [60]. Characterization of kaolin using Fourier Transform Infrared Spectroscopy had been conducted to determine the functional group involved in these materials.…”

Section: Characterization Of Raw Materialssupporting

confidence: 80%

Effect of Aluminium Powder on Kaolin-Based Geopolymer Characteristic and Removal of Cu2+

et al. 2021

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This current work focuses on the synthesis of geopolymer-based adsorbent which uses kaolin as a source material, mixed with alkali solution consisting of 10M NaOH and Na2SiO3 as well as aluminium powder as a foaming agent. The experimental range for the aluminium powder was between 0.6, 0.8, 1.0 and 1.2wt%. The structure, properties and characterization of the geopolymer were examined using X-Ray Diffraction (XRD), Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM). Adsorption capacity and porosity were analysed based on various percentages of aluminium powder added. The results indicate that the use of aluminium powder exhibited a better pore size distribution and higher porosity, suggesting a better heavy metal removal. The maximum adsorption capacity of Cu2+ approached approximately 98%. The findings indicate that 0.8% aluminium powder was the optimal aluminium powder content for geopolymer adsorbent. The removal efficiency was affected by pH, adsorbent dosage and contact time. The optimum removal capacity of Cu2+ was obtained at pH 6 with 1.5 g geopolymer adsorbent and 4 h contact time. Therefore, it can be concluded that the increase in porosity increases the adsorption of Cu2+.

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Section: Characterization Of Raw Materialssupporting

confidence: 80%

Effect of Aluminium Powder on Kaolin-Based Geopolymer Characteristic and Removal of Cu2+

et al. 2021

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“…Kaolin S300 is commonly treated before use because of its low strength and high settlement in the presence of water [38]. Kaolin is easily dispersed in water, having poor geotechnical properties, high plasticity and low workability [39,40]. POFA was used as a means of waste management and it has the potential to be used as a stabilizing agent due to the chemical compositions of POFA as alumina and silica [41,42].…”

Section: Introductionmentioning

confidence: 99%

Improving the Early Properties of Treated Soft Kaolin Clay with Palm Oil Fuel Ash and Gypsum

et al. 2021

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Soft soil problems and increased production of fuel waste have emerged due to world population growth. These two problems are prompting engineers to introduce new methods of using waste fuel to stabilize the soil. Previous research has shown clear sustained improvements in soil properties using palm oil fuel ash (POFA) when mixed with a calcium-based binder such as NaCl, lime or cement. The use of such a stabilizing agent can reduce the economic problems associated with reducing the cost of waste disposal and create a sustainable ecological system. It is an alternative method of replacing part of the soil to ensure a balance between economic growth and ecological privilege, leading to the achievement of green technology goals. However, this research is aimed at improving the properties of processed soft kaolin clay with a combination of POFA and gypsum. The physical and mechanical properties of all samples were tested. The results showed a decrease in the specific gravity with the addition of POFA and an increase with gypsum alone, as well as a decrease with a mixture of POFA and gypsum and a decrease in the soil plasticity index due to a better increase in the plasticity limit compared to the liquid limit. This is considered a sign of improved geotechnical properties and reduced linear shrinkage. It was also shown that the treated clay showed an increase in the optimal water content and a drop in the maximum dry density. Nevertheless, it can be concluded that the initial properties of the processed soft kaolin clay with the addition of POFA can be significantly improved.

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“…The reform of 3CaO•SiO 2 •3H 2 O increases the compressive strength of the mortar. Ca(OH) 2 should be minimized as a byproduct because it fills a bigger space in the structure that causes breakages in the binding of the hardening cement paste and cracks in the cementation [14,15]. The variation in the amount of the Napa soil (% w/w), as additive, in producing composite cement is shown in Table 1.…”

Section: Resultsmentioning

confidence: 99%

“…The effect of C 3 A, which reacts with water, on the setting time is shown in the reaction below: Increasing amount of pozzolanic materials can increase the hydration process, hence increasing the required time period [27]. This influences the amount of time the material takes to set [15].…”

Section: Analysis the Setting Timementioning

confidence: 99%

The Fabrication of Portland Composite Cement Based on Pozzolan Napa Soil

et al. 2021

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The objective of this study is to investigate Napa soil’s potential as an alternative additive in producing Portland composite cement. The Napa soil of Tanah Datar district, West Sumatra, Indonesia is a natural material which contains SiO2 and Al2O3 as its major components. The parameters used were the fineness of the cement particles, the amount left on a 45 μm sieve, the setting time, normal consistency, loss on ignition, insoluble parts, compressive strength and chemical composition. The composition of Napa soils (% w/w) used as variables include 4, 8, 12 and 16%. Furthermore, 8% pozzolan was used as a control in this research. The results showed that the compressive strength of Napa soil cement which contained 4% Napa soil was much better compared to that of the control on the 7th and 20th day. Furthermore, all the analyzed Napa soil cements met the standard of cement as stipulated in Indonesian National Standard, SNI 7064, 2016.

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Physicochemical characterization of cement treated kaolin clay

Cited by 14 publications

References 16 publications

Effect of Aluminium Powder on Kaolin-Based Geopolymer Characteristic and Removal of Cu2+

Effect of Aluminium Powder on Kaolin-Based Geopolymer Characteristic and Removal of Cu2+

Improving the Early Properties of Treated Soft Kaolin Clay with Palm Oil Fuel Ash and Gypsum

The Fabrication of Portland Composite Cement Based on Pozzolan Napa Soil

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