Calculation of Cement Composition Using a New Model Compared to the Bogue Model

Abstract

The major cement composition ratios of alite, belite, aluminate, and ferrite have been calculated with the Bogue models until now. However, a recent comprehensive analysis based on various experimental data has revealed that the chemical composition of alite, belite, aluminate, and ferrite implemented by the Bogue models are slightly different than the experimental data, where small amounts of Al2O3 and Fe2O3 existing in alite and belite can change the prediction of cement composition. Since the amounts of cement compound are very important factors in determining the properties of concrete, improvement in the calculation would give more precise prediction for application usages such as climate change adaptable cement and high durable concrete manufacturing. For this purpose, 20 new models are proposed by modifying chemical compositions of the cement compounds and verified with the 50 experimental data sets. From the verification, the most accurate models are identified. The calculation using new models exhibit an accuracy improvement of approximately 5% compared to the Bogue models. Their applicable range is also presented. The study results are discussed in detail in the paper.

Conservation Environments’ Effect on the Compressive Strength Behaviour of Wood–Concrete Composites

“…The creation of glue-water-cement explains this result during the first 28 days of concrete setting. Le Chatelier (1887) [ 54 ] described a cement hydration process based on dissolution/precipitation. When water is supplied, the anhydrous reactants will gradually dissolve.…”

“…The calculation assumes that the primary clinker minerals are pure minerals with the following compositions: (i) alite or tricalcium silicate (C 3 S); (ii) belite or dicalcium silicate (C 2 S); (iii) tricalcium aluminate (C 3 A); and (iv) tetracalcium aluminoferrite (C 4 AF) [ 53 ]. These clinkers may be computed using Equations (1)–(4) [ 54 ] where the oxides reflect the weight percentages (PW) [ 53 ]: C 3 S = 4.0710 CaO − 7.6024 SiO 2 − 1.4297 Fe 2 O 3 − 6.7187 Al 2 O 3 C 2 S = 8.6024 SiO 2 + 1.0785 Fe 2 O 3 + 5.0683 Al 2 O 3 − 3.0710 CaO C 3 A = 2.6504 Al 2 O 3 + 1.6920 Fe 2 O 3 C 4 AF = 3.0432 Fe 2 O 3 …”

Influence of the Partial Substitution of Industrial Clinker by Volcanic Lava Powder from Nyiragongo Volcano on the Physical Properties of Mortars

“…The peak at 1097 cm −1 is attributed to the symmetric stretching vibration of the Si-O-Si bonds of quartz, which is the main constituent of sand. This vibration occurs when the two oxygen atoms bonded to the same silicon atom move away from or towards the silicon simultaneously [65]. The peak at 778 cm −1 is attributed to the asymmetric stretching vibration of the Si-O-Si bonds of quartz.…”

Dataset construction and data science analysis of physicochemical characterization of ordinary Portland cement

“…For the calculation using Bogue, it is necessary to consider that the composition of the four main components of and becomes C 3 S and C 2 S. The method also considers non-real clinker temperatures close to 2,000 °C, perfect combination of oxides, the existence of balance between C 3 S, C 2 S and liquid phase [30], [31]. According to Gobbo [30] the calculation restricts the constitution of the cement clinkers to C 3 S, C 2 S, C 3 A e C 4 AF, being that it despises the existence of minor elements, such as the TiO 2 , MgO, K 2 O e Na 2 O, among others.…”