Geochemical properties of limestone and its raw material potential for cement manufacturing in the Ras Bayad area of northeastern Libya
DOI:
https://doi.org/10.61952/jlabw.v2i1.471Keywords:
Geochemistry, limestone, clay, raw material, assessment, cement, quality models, bending ratioAbstract
The purpose of this study was to examine the geochemical characterizations of the limestone and clay deposits in the Ras Bayad area in order to classify and purify them as well as evaluate their potential as raw materials for the production of cement. Using the X-ray fluorescence analysis (XRF) technique, fifteen representative rock samples were collected from three chosen locations for both carbonate and clay rocks. The results of chemical analyses have been used to create ratio factors analysis models such as silica modulus (SM), alumina modulus (AM), hydraulic modulus (HM), lime saturation factor (LSF), and liquid phase (L. phase). Additionally, Bogue's formulas have been used to calculate quality control coefficients like C2S, C3S, C3A, and C4AF. The obtained results showed that the raw materials under consideration show that the geochemical classification according to the Al2O3–CaO–(MgO+FeOt) ternary diagram and Ca/Mg ratio as well as CaO%, CaCO3% contents are pure limestones and can be used for cement manufacture due to the high lime (CaO%) content and low impurity content. Lime saturation factor (LSF), silica modulus (SM), and alumina modulus (AM) ratio factor analysis demonstrated that these rocks met these factors' requirements. The calculated different moduli and quality control coefficients, such as C2S, C3S, C3A, and C4AF, showed that there are some differences between different rock types and locations. This is typically due to the chemical composition of each type, which is mainly dependent on the nature of depositional under specific geological conditions. The geochemical suitability of limestone demonstrated that these raw materials meet standard requirements for cement manufacturing. The raw material blending ratios for the limestone and clay rock samples at locations (1), (2), and (3) are 1:2.38, 1:2.47, and 1:2.44, respectively, with minimal variation
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