Characterization, technological properties, and ceramic applications of Kastamonu alluvial clays (Northern Turkey) in building materials

Arianpour, Aslı Çakır; Arianpour, Farzin

doi:10.1016/j.conbuildmat.2022.129304

Cited by 7 publications

(5 citation statements)

References 65 publications

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“…The C O stretching was observed at around 2000 cm −1 and those of C-C were seen around 1000 cm −1 for both samples. The study results were comparable to a study conducted by Arianpour, 2022 on the characterization, technological propertiesand ceramic applications of clays in Turkey 77.…”

supporting

confidence: 87%

Physical, chemical and biological characteristics of clays from Durban (South Africa) for applications in cosmetics

Nkosi,

Thembane

2024

Analytical Science Advances

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Clay soils are rock‐decomposed materials comprised of both clay‐ and non‐clay‐like minerals. Clays' physiochemical and mineralogical composition determines their applicability use in cosmetics. Because of their high bioburden, they must be effectively characterized before being incorporated into cosmetics. The scope of the current study was to characterize two different samples of red and white clays for their physical, chemical and biological properties; mined from Durban, South Africa. Characterization was performed using techniques like X‐ray fluorescence, X‐ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscope, hydrogen potential, soil colour, oil absorption, swelling capacity, texture, bulk density, plastic and apparent viscosity, sun protection factor and microbiological analysis.

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confidence: 87%

Physical, chemical and biological characteristics of clays from Durban (South Africa) for applications in cosmetics

Nkosi,

Thembane

2024

Analytical Science Advances

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“…The high SiO2 content in the chemical composition of the clays confirmed the high percentage of quartz revealed by XRD analysis [54,55]. The presence of alumina (Al2O3) is related to the presence of aluminosilicates and kaolinite, while that of iron oxide (Fe2O3) and potassium (K2O) indicates the presence of hematite and illite [51,54,56]. Clays with Fe2O3 contents below 8% are reported as acceptable clays for the production of building materials [51].…”

Section: Physical Mineralogical and Chemical Characterizationmentioning

confidence: 65%

“…Two major quartz peaks were observed for 2θ between 20 • and 30 • . These high peaks indicate the presence of free silica from clay minerals [51]. Quartz is always the most dominant element in the mineralogical composition of clays used in construction [30,52,53].…”

Section: Physical Mineralogical and Chemical Characterizationmentioning

confidence: 99%

“…The presence of alumina (Al 2 O 3 ) is related to the presence of aluminosilicates and kaolinite, while that of iron oxide (Fe 2 O 3 ) and potassium (K 2 O) indicates the presence of hematite and illite [51,54,56]. Clays with Fe 2 O 3 contents below 8% are reported as acceptable clays for the production of building materials [51]. The two clays studied had Fe 2 O 3 contents of 2.2% and 0.1%, respectively.…”

Section: Thermal Thermogravimetric Analysis (Tga) and Differential Th...mentioning

confidence: 99%

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The Impact of Vegetable Fibres on the Shrinkage and Mechanical Properties of Cob Materials

Kabore,

Ouellet-Plamondon

2024

Materials

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This study examined the shrinkage rate and mechanical properties of cob samples. Cob is a natural building material composed of clay, water, and varying amounts of plant fibres. The red and beige cob materials in this study containing 3% and 6% wheat fibres were manufactured by hand with clay, bulk fibres (short and long fibres), and a 25% water ratio (water/clay) in order to make their manufacture and use on construction sites feasible and simple. The reference samples were mixed with clay, 25% water, and 0% wheat fibre. The mechanical properties were assessed through compression and flexural tests after 28 and 120 days. The results showed that the fibre addition decreased the bulk density of the composites from 1902 kg/m3 to 1264 kg/m3. The compressive strength increased from 1.8 MPa to 4.57 MPa for the red clay samples and from 1.65 MPa to 4.61 MPa for the beige clay samples at 28 days. The compressive strength of each mixture decreased slightly with age for the red and beige clay samples, respectively. Conversely, the flexural strength increased with age for the samples reinforced with 3% and 6% fibres. The results also showed that the cob samples can deform without breaking. Increasing the fibre content in the mix resulted in a significant reduction in the shrinkage rate and an increase in the mass loss rate during thermogravimetric analysis. This analysis showed a total mass loss of approximately 5.64%, 6.12%, and 44.87% for the red clay, beige clay, and fibres, respectively. An average volume shrinkage of 1% was observed for the samples with 6% fibre content. The cob discussed in this article can be used as a filling material. In large quantities, it can be made by hand, with feet protected by boots, or with the use of a mixer. The environmental benefits are considerable, as the raw materials are renewable, and the manufacturing process is less energy-intensive.

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“…No previous studies have assessed the clay firing at 700 and 1100 °C by measuring the rock’s actual wettability through different techniques after firing, highlighting the novelty of the present study. We conducted rock firing at 700 and 1100 °C in this study because these are the normal temperature ranges of rock firing reported in the literature. ,− The result of this research is significant for the accurate prediction of hydrocarbon recovery potentials and gas (carbon dioxide and hydrogen) storage capacities of clay-rich sandstone.…”

Section: Introductionmentioning

confidence: 99%

Influence of Rock Firing on the Wettability of Clay-Rich Sandstones

et al. 2023

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Rock firing is a conventional technique of core preparation to prevent clay swelling and fines migration in clay-rich rock; however, the influence of rock firing on the wetting behaviors and alterations of mineralogical compositions of clay-rich sandstones is not yet explicit. Thus, we assessed and compared the impacts of rock burning at two different temperatures (700 and 1100 °C) on the changes in wetting states of Bentheimer (BN) and clay-rich Bandera Gray (BG) sandstones through contact angle measurement, Amott wettability index determination, and thermogravimetric analysis (TGA). Results showed that rock firing makes the rocks more water-wet, but the clay-rich BG sandstone becomes significantly more water-wet than the quartz-dominated BN rock with increasing temperature. There was no change in rock porosity due to firing, but some clay remained, whereas some clays were transformed into other minerals after rock firing. Particularly, there were thermal transformations of clay to quartz and the disappearance of dolomite, chlorite, and clinochlore. Such transformation of these minerals into alkali metal oxide silicates dispersed on the rock matrix makes the surface more polar and enhances the interactions with water molecules, resulting in more water wettability for the BG sandstone. The study suggests that rock firing could change the clay-rich rock-wetting state into a more water-wet condition than the clay-poor or zero-clay sandstone samples; thus, the influence of rock burning on rock-wetting behavior should be considered to ensure an accurate prediction of the rock-wetting state due to rock burning. Moreover, burning at 1100 °C is recommended to achieve effective clay transformation and removal in clay-rich rock to prevent swelling, fines migration, and clay–fluid interactions.

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Characterization, technological properties, and ceramic applications of Kastamonu alluvial clays (Northern Turkey) in building materials

Cited by 7 publications

References 65 publications

Physical, chemical and biological characteristics of clays from Durban (South Africa) for applications in cosmetics

Physical, chemical and biological characteristics of clays from Durban (South Africa) for applications in cosmetics

The Impact of Vegetable Fibres on the Shrinkage and Mechanical Properties of Cob Materials

Influence of Rock Firing on the Wettability of Clay-Rich Sandstones

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