Structural characterizations of dune sand and construction sand of Sidi Slimane and Zaouia El Abidia areas in the Touggourt region in southeast Algeria

Benchaa, Sayhia; Gheriani, R.; Achouri, A.; Bouguettaia, Hamza; Mechri, Mohammed Laïd

doi:10.1007/s12517-021-08303-9

Cited by 3 publications

(2 citation statements)

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“…These findings indicate that the El-Baadj sand consists mainly of α-quartz, calcite, and gypsum minerals, which are in conformity with the results found by Al-Ansary et al on the Qatar fluvial sand (Al-Ansary and Iyengar, 2013).However, the XRD patterns of the Zegoum dune sand show peaks at 2θ°: 20.88°, 26.64°, 36.55°, 39.46°, 42.47°, 50.16°, 54.87°, 59.97°, 64.1°, 67.75°, 68.16°, 68.34°, 73.32°, 75.72°, and 81.49°, according to the JCPDS (N o 00-046-1045) corresponding to the (hkl) crystalline planes (100), (101), (210), (102), (111), (201), (112), (003), (211), (113), (212), (203), (301), (104), (302), and (310), respectively. These crystalline planes also support the occurrence of the α-quartz phase (SiO2) in the dune sand sample, which has a hexagonal crystalline structure and belongs to the P3221 space group (154)(Meftah et al, 2020).Furthermore, the JCPDS card (N o 01-086-2334) confirms that the four significant reflections at 2θ°: 23.09°, 29.42°, 39.46°, 43.19°, and 48.54°, corresponding respectively to the (hkl) crystalline planes (012), (104), (113), (202), and (116), represent calcite minerals(Benchaa et al, 2021). The gypsum diffraction peaks were recorded at 20.87°, 27.48°, and 31.16°, with (220), (041), and (022) crystalline planes, according to the JCPDS card (N o 01-076-1746).…”

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“…Furthermore, the JCPDS card (N o 01-086-2334) confirms that the four significant reflections at 2θ°: 23. 09°, 29.42°, 39.46°, 43.19°, and 48.54°, corresponding respectively to the (hkl) crystalline planes ( 012), ( 104), ( 113), (202), and (116), represent calcite minerals (Benchaa et al, 2021). The gypsum diffraction peaks were recorded at 20.87°, 27.48°, and 31.16°, with ( 220), (041), and (022) crystalline planes, according to the JCPDS card (N o 01-076-1746).…”

Section: Xrd Analysismentioning

confidence: 99%

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A comparative analysis of the microstructural and physicochemical properties of alluvial and dune sands from northeast Algerian Sahara

Hachem

Meftah²,

Bouaziz

2023

J. Eng. Exact Sci.

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This paper investigates the physical, chemical, and microstructural properties of two types of natural sand; alluvial sands and dune sand from the El-Oued region in the northeastern Algerian Sahara. Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), X-ray Fluorescence (XRF), Scanning electron microscopy (SEM/EDS), and granulometry analysis have been performed. The FTIR and XRD analysis prove that the alluvial sand and dune sand consist of high percentages of ?-quartz (SiO2), low amounts of calcite (CaCO3), and gypsum minerals (CaSO4;2H2O). The chemical analysis confirmed that both types of sand have a high silica (SiO2) ratio, reaching 80% for dune sand and 70% for alluvial sand, besides very low quantities of Al2O3, Fe2O3, and K2O oxides. CaO content was higher in alluvial sand than in dune sand. The shapes of alluvial sand grain samples ranged from angular to well-rounded. However, the dune sands have shapes ranging from sub-angular to well-rounded. However, the dune sand is poorly graded sand with a mean grain size of 250?m; whereas, the alluvial sand is well-graded sand with a mean grain size of 406?m. These findings demonstrate that alluvial and dune sands are mineralogically stable and chemically suitable for use as fine aggregates in construction. Also, these sands could be significant sources of quartz minerals.

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confidence: 60%

Section: Xrd Analysismentioning

confidence: 99%